linaro-kernel

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[RFC PATCH] kgdb: Timeout if secondary CPUs ignore the roundup

by Daniel Thompson

Currently if an active CPU fails to respond to a roundup request the CPU that requested the roundup will become stuck. This needlessly reduces the robustness of the debugger. This patch introduces a timeout allowing the system state to be examined even when the system contains unresponsive processors. It also modifies kdb's cpu command to make it censor attempts to switch to unresponsive processors and to report their state as (D)ead. Signed-off-by: Daniel Thompson <daniel.thompson(a)linaro.org> Cc: Jason Wessel <jason.wessel(a)windriver.com> Cc: Mike Travis <travis(a)sgi.com> Cc: Randy Dunlap <rdunlap(a)infradead.org> Cc: Dimitri Sivanich <sivanich(a)sgi.com> Cc: Andrew Morton <akpm(a)linux-foundation.org> Cc: Borislav Petkov <bp(a)suse.de> Cc: kgdb-bugreport(a)lists.sourceforge.net --- kernel/debug/debug_core.c | 9 +++++++-- kernel/debug/kdb/kdb_main.c | 4 +++- 2 files changed, 10 insertions(+), 3 deletions(-) diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c index 1adf62b..acd7497 100644 --- a/kernel/debug/debug_core.c +++ b/kernel/debug/debug_core.c @@ -471,6 +471,7 @@ static int kgdb_cpu_enter(struct kgdb_state *ks, struct pt_regs *regs, int cpu; int trace_on = 0; int online_cpus = num_online_cpus(); + u64 time_left; kgdb_info[ks->cpu].enter_kgdb++; kgdb_info[ks->cpu].exception_state |= exception_state; @@ -595,9 +596,13 @@ return_normal: /* * Wait for the other CPUs to be notified and be waiting for us: */ - while (kgdb_do_roundup && (atomic_read(&masters_in_kgdb) + - atomic_read(&slaves_in_kgdb)) != online_cpus) + time_left = loops_per_jiffy * HZ; + while (kgdb_do_roundup && --time_left && + (atomic_read(&masters_in_kgdb) + atomic_read(&slaves_in_kgdb)) != + online_cpus) cpu_relax(); + if (!time_left) + pr_crit("KGDB: Timed out waiting for secondary CPUs.\n"); /* * At this point the primary processor is completely diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c index 2f7c760..49f2425 100644 --- a/kernel/debug/kdb/kdb_main.c +++ b/kernel/debug/kdb/kdb_main.c @@ -2157,6 +2157,8 @@ static void kdb_cpu_status(void) for (start_cpu = -1, i = 0; i < NR_CPUS; i++) { if (!cpu_online(i)) { state = 'F'; /* cpu is offline */ + } else if (!kgdb_info[i].enter_kgdb) { + state = 'D'; /* cpu is online but unresponsive */ } else { state = ' '; /* cpu is responding to kdb */ if (kdb_task_state_char(KDB_TSK(i)) == 'I') @@ -2210,7 +2212,7 @@ static int kdb_cpu(int argc, const char **argv) /* * Validate cpunum */ - if ((cpunum > NR_CPUS) || !cpu_online(cpunum)) + if ((cpunum > NR_CPUS) || !kgdb_info[cpunum].enter_kgdb) return KDB_BADCPUNUM; dbg_switch_cpu = cpunum; -- 1.9.3

10 years, 10 months

[PATCH 3.17-rc4 0/3] kdb: Improve command output searching

by Daniel Thompson

This patchset improves kdb's capabilities to search the output of commands. Specifically it fixes a bug in the prompt management when '| grep' is used and adds a new feature to search command output interactively from the more prompt. Daniel Thompson (3): kdb: Fix a prompt management bug when using | grep kdb: Provide forward search at more prompt kdb: Const qualifier for kdb_getstr's prompt argument kernel/debug/kdb/kdb_io.c | 24 +++++++++++++++++++++--- kernel/debug/kdb/kdb_main.c | 11 ++++++----- kernel/debug/kdb/kdb_private.h | 4 +++- 3 files changed, 30 insertions(+), 9 deletions(-) -- 1.9.3

10 years, 10 months

[PATCH] kdb: Remove stack dump when entering kgdb due to NMI

by Daniel Thompson

Issuing a stack dump feels ergonomically wrong when entering due to NMI. Entering due to NMI is a normally reaction to a user request, either the NMI button on a server or a "magic knock" on a UART. Therefore the backtrace behaviour on entry due to NMI should be like SysRq-g (no stack dump) rather than like oops. Note also that the stack dump does not offer any information that cannot be trivial retrieved using the 'bt' command. Signed-off-by: Daniel Thompson <daniel.thompson(a)linaro.org> Cc: Jason Wessel <jason.wessel(a)windriver.com> Cc: Mike Travis <travis(a)sgi.com> Cc: Ingo Molnar <mingo(a)redhat.com> Cc: kgdb-bugreport(a)lists.sourceforge.net --- kernel/debug/kdb/kdb_main.c | 1 - 1 file changed, 1 deletion(-) diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c index 49f2425..6d19905 100644 --- a/kernel/debug/kdb/kdb_main.c +++ b/kernel/debug/kdb/kdb_main.c @@ -1207,7 +1207,6 @@ static int kdb_local(kdb_reason_t reason, int error, struct pt_regs *regs, kdb_printf("due to NonMaskable Interrupt @ " kdb_machreg_fmt "\n", instruction_pointer(regs)); - kdb_dumpregs(regs); break; case KDB_REASON_SSTEP: case KDB_REASON_BREAK: -- 1.9.3

10 years, 10 months

[PATCH 3.17rc4] kdb: Avoid printing KERN_ levels to consoles

by Daniel Thompson

Currently when kdb traps printk messages then the log level prefix does not get stripped off before the message is issued to the various I/O handlers supported by kdb. This results in annoying visual noise and problems with grepping for ^. This patch addresses the problem by stripping log levels from messages before they are issued to the I/O handlers. printk(), which is used as an I/O handler for logging purposes, is handled as a special case; if the caller provided a log level then this will be preserved. Signed-off-by: Daniel Thompson <daniel.thompson(a)linaro.org> Cc: Jason Wessel <jason.wessel(a)windriver.com> Cc: Mike Travis <travis(a)sgi.com> Cc: Ingo Molnar <mingo(a)redhat.com> Cc: Andrew Morton <akpm(a)linux-foundation.org> --- kernel/debug/kdb/kdb_io.c | 20 +++++++++++++------- 1 file changed, 13 insertions(+), 7 deletions(-) diff --git a/kernel/debug/kdb/kdb_io.c b/kernel/debug/kdb/kdb_io.c index 7c70812..381f297 100644 --- a/kernel/debug/kdb/kdb_io.c +++ b/kernel/debug/kdb/kdb_io.c @@ -691,19 +691,22 @@ kdb_printit: * Write to all consoles. */ retlen = strlen(kdb_buffer); + cp = kdb_buffer; + if (cp[0] == KERN_SOH_ASCII && cp[1] != '\0') + cp += 2; if (!dbg_kdb_mode && kgdb_connected) { - gdbstub_msg_write(kdb_buffer, retlen); + gdbstub_msg_write(cp, retlen - (cp - kdb_buffer)); } else { if (dbg_io_ops && !dbg_io_ops->is_console) { - len = retlen; - cp = kdb_buffer; + len = retlen - (cp - kdb_buffer); + cp2 = cp; while (len--) { - dbg_io_ops->write_char(*cp); - cp++; + dbg_io_ops->write_char(*cp2); + cp2++; } } while (c) { - c->write(c, kdb_buffer, retlen); + c->write(c, cp, retlen - (cp - kdb_buffer)); touch_nmi_watchdog(); c = c->next; } @@ -711,7 +714,10 @@ kdb_printit: if (logging) { saved_loglevel = console_loglevel; console_loglevel = CONSOLE_LOGLEVEL_SILENT; - printk(KERN_INFO "%s", kdb_buffer); + if (cp == kdb_buffer) + printk(KERN_INFO "%s", kdb_buffer); + else + printk("%s", kdb_buffer); } if (KDB_STATE(PAGER)) { -- 1.9.3

10 years, 10 months

next-20150107 build: 4 failures 34 warnings (next-20150107)

by Build bot for Mark Brown

Tree/Branch: next-20150107 Git describe: next-20150107 Commit: 7e3619a6de Add linux-next specific files for 20150107 Build Time: 18 min 18 sec Passed: 4 / 8 ( 50.00 %) Failed: 4 / 8 ( 50.00 %) Errors: 10 Warnings: 34 Section Mismatches: 0 Failed defconfigs: arm64-allnoconfig arm64-allmodconfig arm-allmodconfig arm64-defconfig Errors: arm64-allnoconfig ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/arch_timer.h:112:2: error: implicit declaration of function 'BUG' [-Werror=implicit-function-declaration] ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) arm64-allmodconfig ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/mm/dump.c:55:20: error: 'PCI_IOBASE' undeclared here (not in a function) ../arch/arm64/include/asm/arch_timer.h:112:2: error: implicit declaration of function 'BUG' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/module.c:408:4: error: implicit declaration of function 'apply_alternatives' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:80:2: error: implicit declaration of function 'ioremap_cache' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:92:2: error: implicit declaration of function 'writeq_relaxed' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:101:2: error: implicit declaration of function 'iounmap' [-Werror=implicit-function-declaration] ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) arm-allmodconfig ../drivers/dma/k3dma.c:823:12: error: conflicting types for 'k3_dma_resume' arm64-defconfig ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/arch_timer.h:112:2: error: implicit declaration of function 'BUG' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/module.c:408:4: error: implicit declaration of function 'apply_alternatives' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:80:2: error: implicit declaration of function 'ioremap_cache' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:92:2: error: implicit declaration of function 'writeq_relaxed' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:101:2: error: implicit declaration of function 'iounmap' [-Werror=implicit-function-declaration] ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 15 warnings 0 mismatches : arm64-allmodconfig 3 warnings 0 mismatches : arm-multi_v7_defconfig 20 warnings 0 mismatches : arm-allmodconfig 1 warnings 0 mismatches : arm-allnoconfig 3 warnings 0 mismatches : arm64-defconfig ------------------------------------------------------------------------------- Errors summary: 10 18 ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) 11 ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) 11 ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) 3 ../arch/arm64/include/asm/arch_timer.h:112:2: error: implicit declaration of function 'BUG' [-Werror=implicit-function-declaration] 2 ../arch/arm64/kernel/smp_spin_table.c:92:2: error: implicit declaration of function 'writeq_relaxed' [-Werror=implicit-function-declaration] 2 ../arch/arm64/kernel/smp_spin_table.c:80:2: error: implicit declaration of function 'ioremap_cache' [-Werror=implicit-function-declaration] 2 ../arch/arm64/kernel/smp_spin_table.c:101:2: error: implicit declaration of function 'iounmap' [-Werror=implicit-function-declaration] 2 ../arch/arm64/kernel/module.c:408:4: error: implicit declaration of function 'apply_alternatives' [-Werror=implicit-function-declaration] 1 ../drivers/dma/k3dma.c:823:12: error: conflicting types for 'k3_dma_resume' 1 ../arch/arm64/mm/dump.c:55:20: error: 'PCI_IOBASE' undeclared here (not in a function) Warnings Summary: 34 4 <stdin>:1250:2: warning: #warning syscall execveat not implemented [-Wcpp] 2 ../include/linux/dynamic_debug.h:78:3: warning: unsupported argument to '__builtin_return_address' 2 ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] 2 ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] 2 ../drivers/clocksource/timer-marco.c:260:6: warning: unused variable 'timer_div' [-Wunused-variable] 2 ../arch/arm64/kernel/smp_spin_table.c:80:15: warning: assignment makes pointer from integer without a cast 1 ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../net/rds/iw_rdma.c:200:1: warning: the frame size of 1056 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../include/uapi/linux/swab.h:13:15: warning: integer overflow in expression [-Woverflow] 1 ../include/linux/kernel.h:717:17: warning: comparison of distinct pointer types lacks a cast 1 ../include/linux/kernel.h:711:17: warning: comparison of distinct pointer types lacks a cast 1 ../include/linux/dynamic_debug.h:64:16: warning: format '%lu' expects argument of type 'long unsigned int', but argument 10 has type 'size_t' [-Wformat=] 1 ../include/linux/dynamic_debug.h:64:16: warning: format '%d' expects argument of type 'int', but argument 4 has type 'long unsigned int' [-Wformat=] 1 ../fs/btrfs/extent_io.c:2193:13: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/usb/renesas_usbhs/common.c:471:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/usb/gadget/udc/udc-xilinx.c:2135:34: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/spi/spi-s3c64xx.c:336:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/spi/spi-s3c64xx.c:327:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/net/ethernet/rocker/rocker.c:809:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/net/ethernet/mellanox/mlx5/core/debugfs.c:467:46: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/net/ethernet/mellanox/mlx5/core/debugfs.c:307:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/net/ethernet/mellanox/mlx5/core/debugfs.c:303:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] 1 ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1208 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/irqchip/irq-gic-v3-its.c:1056:5206: warning: comparison of distinct pointer types lacks a cast 1 ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined 1 ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined 1 ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined 1 ../arch/arm64/kernel/efi.c:276:20: warning: 'free_end' may be used uninitialized in this function [-Wmaybe-uninitialized] 1 ../arch/arm/mach-imx/mach-imx6sx.c:59:20: warning: 'imx6sx_enet_plt_init' defined but not used [-Wunused-function] 1 ../arch/arm/mach-cns3xxx/pcie.c:298:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allnoconfig : FAIL, 9 errors, 0 warnings, 0 section mismatches Errors: ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/arch_timer.h:112:2: error: implicit declaration of function 'BUG' [-Werror=implicit-function-declaration] ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ------------------------------------------------------------------------------- arm64-allmodconfig : FAIL, 24 errors, 15 warnings, 0 section mismatches Errors: ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/mm/dump.c:55:20: error: 'PCI_IOBASE' undeclared here (not in a function) ../arch/arm64/include/asm/arch_timer.h:112:2: error: implicit declaration of function 'BUG' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/module.c:408:4: error: implicit declaration of function 'apply_alternatives' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:80:2: error: implicit declaration of function 'ioremap_cache' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:92:2: error: implicit declaration of function 'writeq_relaxed' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:101:2: error: implicit declaration of function 'iounmap' [-Werror=implicit-function-declaration] ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) Warnings: ../arch/arm64/kernel/smp_spin_table.c:80:15: warning: assignment makes pointer from integer without a cast ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../include/linux/kernel.h:717:17: warning: comparison of distinct pointer types lacks a cast ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined ../drivers/spi/spi-s3c64xx.c:327:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/spi/spi-s3c64xx.c:336:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] ../drivers/usb/gadget/udc/udc-xilinx.c:2135:34: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/usb/renesas_usbhs/common.c:471:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ------------------------------------------------------------------------------- arm-multi_v7_defconfig : PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: <stdin>:1250:2: warning: #warning syscall execveat not implemented [-Wcpp] ../drivers/clocksource/timer-marco.c:260:6: warning: unused variable 'timer_div' [-Wunused-variable] <stdin>:1250:2: warning: #warning syscall execveat not implemented [-Wcpp] ------------------------------------------------------------------------------- arm-allmodconfig : FAIL, 1 errors, 20 warnings, 0 section mismatches Errors: ../drivers/dma/k3dma.c:823:12: error: conflicting types for 'k3_dma_resume' Warnings: <stdin>:1250:2: warning: #warning syscall execveat not implemented [-Wcpp] ../arch/arm/mach-cns3xxx/pcie.c:298:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../arch/arm/mach-imx/mach-imx6sx.c:59:20: warning: 'imx6sx_enet_plt_init' defined but not used [-Wunused-function] ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../fs/btrfs/extent_io.c:2193:13: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../include/linux/dynamic_debug.h:64:16: warning: format '%lu' expects argument of type 'long unsigned int', but argument 10 has type 'size_t' [-Wformat=] ../drivers/clocksource/timer-marco.c:260:6: warning: unused variable 'timer_div' [-Wunused-variable] ../net/rds/iw_rdma.c:200:1: warning: the frame size of 1056 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../include/linux/kernel.h:711:17: warning: comparison of distinct pointer types lacks a cast ../include/linux/dynamic_debug.h:78:3: warning: unsupported argument to '__builtin_return_address' ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1208 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../include/linux/dynamic_debug.h:78:3: warning: unsupported argument to '__builtin_return_address' ../include/linux/dynamic_debug.h:64:16: warning: format '%d' expects argument of type 'int', but argument 4 has type 'long unsigned int' [-Wformat=] ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] ../drivers/net/ethernet/mellanox/mlx5/core/debugfs.c:303:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/net/ethernet/mellanox/mlx5/core/debugfs.c:307:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/net/ethernet/mellanox/mlx5/core/debugfs.c:467:46: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../include/uapi/linux/swab.h:13:15: warning: integer overflow in expression [-Woverflow] ../drivers/net/ethernet/rocker/rocker.c:809:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ------------------------------------------------------------------------------- arm-allnoconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: <stdin>:1250:2: warning: #warning syscall execveat not implemented [-Wcpp] ------------------------------------------------------------------------------- arm64-defconfig : FAIL, 19 errors, 3 warnings, 0 section mismatches Errors: ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/arch_timer.h:112:2: error: implicit declaration of function 'BUG' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/module.c:408:4: error: implicit declaration of function 'apply_alternatives' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:80:2: error: implicit declaration of function 'ioremap_cache' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:92:2: error: implicit declaration of function 'writeq_relaxed' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:101:2: error: implicit declaration of function 'iounmap' [-Werror=implicit-function-declaration] ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) Warnings: ../arch/arm64/kernel/smp_spin_table.c:80:15: warning: assignment makes pointer from integer without a cast ../arch/arm64/kernel/efi.c:276:20: warning: 'free_end' may be used uninitialized in this function [-Wmaybe-uninitialized] ../drivers/irqchip/irq-gic-v3-its.c:1056:5206: warning: comparison of distinct pointer types lacks a cast ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: x86_64-allnoconfig x86_64-defconfig

10 years, 10 months

[PATCH] arm64: kgdb: fix single stepping

by AKASHI Takahiro

I tried to verify kgdb in vanilla kernel on fast model, but it seems that the single stepping with kgdb doesn't work correctly since its first appearance at v3.15. On v3.15, 'stepi' command after breaking the kernel at some breakpoint steps forward to the next instruction, but the succeeding 'stepi' never goes beyond that. On v3.16, 'stepi' moves forward and stops at the next instruction just after enable_dbg in el1_dbg, and never goes beyond that. This variance of behavior seems to come in with the following patch in v3.16: commit 2a2830703a23 ("arm64: debug: avoid accessing mdscr_el1 on fault paths where possible") This patch (1) moves kgdb_disable_single_step() from 'c' command handling to single step handler. This makes sure that single stepping gets effective at every 's' command. Please note that, under the current implementation, single step bit in spsr, which is cleared by the first single stepping, will not be set again for the consecutive 's' commands because single step bit in mdscr is still kept on (that is, kernel_active_single_step() in kgdb_arch_handle_exception() is true). (2) re-implements kgdb_roundup_cpus() because the current implementation enabled interrupts naively. See below. (3) removes 'enable_dbg' in el1_dbg. Single step bit in mdscr is turned on in do_handle_exception()-> kgdb_handle_expection() before returning to debugged context, and if debug exception is enabled in el1_dbg, we will see unexpected single- stepping in el1_dbg. Since v3.18, the following patch does the same: commit 1059c6bf8534 ("arm64: debug: don't re-enable debug exceptions on return from el1_dbg) (4) masks interrupts while single-stepping one instruction. If an interrupt is caught during processing a single-stepping, debug exception is unintentionally enabled by el1_irq's 'enable_dbg' before returning to debugged context. Thus, like in (2), we will see unexpected single-stepping in el1_irq. Basically (1) and (2) are for v3.15, (3) and (4) for v3.1[67]. * issue fixed by (2): Without (2), we would see another problem if a breakpoint is set at interrupt-sensible places, like gic_handle_irq(): KGDB: re-enter error: breakpoint removed ffffffc000081258 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 650 at kernel/debug/debug_core.c:435 kgdb_handle_exception+0x1dc/0x1f4() Modules linked in: CPU: 0 PID: 650 Comm: sh Not tainted 3.17.0-rc2+ #177 Call trace: [<ffffffc000087fac>] dump_backtrace+0x0/0x130 [<ffffffc0000880ec>] show_stack+0x10/0x1c [<ffffffc0004d683c>] dump_stack+0x74/0xb8 [<ffffffc0000ab824>] warn_slowpath_common+0x8c/0xb4 [<ffffffc0000ab90c>] warn_slowpath_null+0x14/0x20 [<ffffffc000121bfc>] kgdb_handle_exception+0x1d8/0x1f4 [<ffffffc000092ffc>] kgdb_brk_fn+0x18/0x28 [<ffffffc0000821c8>] brk_handler+0x9c/0xe8 [<ffffffc0000811e8>] do_debug_exception+0x3c/0xac Exception stack(0xffffffc07e027650 to 0xffffffc07e027770) ... [<ffffffc000083cac>] el1_dbg+0x14/0x68 [<ffffffc00012178c>] kgdb_cpu_enter+0x464/0x5c0 [<ffffffc000121bb4>] kgdb_handle_exception+0x190/0x1f4 [<ffffffc000092ffc>] kgdb_brk_fn+0x18/0x28 [<ffffffc0000821c8>] brk_handler+0x9c/0xe8 [<ffffffc0000811e8>] do_debug_exception+0x3c/0xac Exception stack(0xffffffc07e027ac0 to 0xffffffc07e027be0) ... [<ffffffc000083cac>] el1_dbg+0x14/0x68 [<ffffffc00032e4b4>] __handle_sysrq+0x11c/0x190 [<ffffffc00032e93c>] write_sysrq_trigger+0x4c/0x60 [<ffffffc0001e7d58>] proc_reg_write+0x54/0x84 [<ffffffc000192fa4>] vfs_write+0x98/0x1c8 [<ffffffc0001939b0>] SyS_write+0x40/0xa0 Once some interrupt occurs, a breakpoint at gic_handle_irq() triggers kgdb. Kgdb then calls kgdb_roundup_cpus() to sync with other cpus. Current kgdb_roundup_cpus() unmasks interrupts temporarily to use smp_call_function(). This eventually allows another interrupt to occur and likely results in hitting a breakpoint at gic_handle_irq() again since debug exception is always enabled in el1_irq. We can avoid this issue by specifying "nokgdbroundup" in kernel parameter, but this will also leave other cpus be in unknown state in terms of kgdb, and may result in interfering with kgdb activity. Signed-off-by: AKASHI Takahiro <takahiro.akashi(a)linaro.org> --- arch/arm64/kernel/kgdb.c | 60 +++++++++++++++++++++++++++++++++++----------- 1 file changed, 46 insertions(+), 14 deletions(-) diff --git a/arch/arm64/kernel/kgdb.c b/arch/arm64/kernel/kgdb.c index a0d10c5..81b5910 100644 --- a/arch/arm64/kernel/kgdb.c +++ b/arch/arm64/kernel/kgdb.c @@ -19,9 +19,13 @@ * along with this program. If not, see <http://www.gnu.org/licenses/>. */ +#include <linux/cpumask.h> #include <linux/irq.h> +#include <linux/irq_work.h> #include <linux/kdebug.h> #include <linux/kgdb.h> +#include <linux/percpu.h> +#include <asm/ptrace.h> #include <asm/traps.h> struct dbg_reg_def_t dbg_reg_def[DBG_MAX_REG_NUM] = { @@ -95,6 +99,9 @@ struct dbg_reg_def_t dbg_reg_def[DBG_MAX_REG_NUM] = { { "fpcr", 4, -1 }, }; +static DEFINE_PER_CPU(unsigned int, kgdb_pstate); +static DEFINE_PER_CPU(struct irq_work, kgdb_irq_work); + char *dbg_get_reg(int regno, void *mem, struct pt_regs *regs) { if (regno >= DBG_MAX_REG_NUM || regno < 0) @@ -176,18 +183,14 @@ int kgdb_arch_handle_exception(int exception_vector, int signo, * over and over again. */ kgdb_arch_update_addr(linux_regs, remcom_in_buffer); - atomic_set(&kgdb_cpu_doing_single_step, -1); - kgdb_single_step = 0; - - /* - * Received continue command, disable single step - */ - if (kernel_active_single_step()) - kernel_disable_single_step(); err = 0; break; case 's': + /* mask interrupts while single stepping */ + __this_cpu_write(kgdb_pstate, linux_regs->pstate); + linux_regs->pstate |= PSR_I_BIT; + /* * Update step address value with address passed * with step packet. @@ -198,8 +201,6 @@ int kgdb_arch_handle_exception(int exception_vector, int signo, */ kgdb_arch_update_addr(linux_regs, remcom_in_buffer); atomic_set(&kgdb_cpu_doing_single_step, raw_smp_processor_id()); - kgdb_single_step = 1; - /* * Enable single step handling */ @@ -229,6 +230,18 @@ static int kgdb_compiled_brk_fn(struct pt_regs *regs, unsigned int esr) static int kgdb_step_brk_fn(struct pt_regs *regs, unsigned int esr) { + unsigned int pstate; + + kernel_disable_single_step(); + atomic_set(&kgdb_cpu_doing_single_step, -1); + + /* restore interrupt mask status */ + pstate = __this_cpu_read(kgdb_pstate); + if (pstate & PSR_I_BIT) + regs->pstate |= PSR_I_BIT; + else + regs->pstate &= ~PSR_I_BIT; + kgdb_handle_exception(1, SIGTRAP, 0, regs); return 0; } @@ -249,16 +262,27 @@ static struct step_hook kgdb_step_hook = { .fn = kgdb_step_brk_fn }; -static void kgdb_call_nmi_hook(void *ignored) +static void kgdb_roundup_hook(struct irq_work *work) { kgdb_nmicallback(raw_smp_processor_id(), get_irq_regs()); } void kgdb_roundup_cpus(unsigned long flags) { - local_irq_enable(); - smp_call_function(kgdb_call_nmi_hook, NULL, 0); - local_irq_disable(); + int cpu; + struct cpumask mask; + struct irq_work *work; + + mask = *cpu_online_mask; + cpumask_clear_cpu(smp_processor_id(), &mask); + cpu = cpumask_first(&mask); + if (cpu >= nr_cpu_ids) + return; + + for_each_cpu(cpu, &mask) { + work = per_cpu_ptr(&kgdb_irq_work, cpu); + irq_work_queue_on(work, cpu); + } } static int __kgdb_notify(struct die_args *args, unsigned long cmd) @@ -299,6 +323,8 @@ static struct notifier_block kgdb_notifier = { int kgdb_arch_init(void) { int ret = register_die_notifier(&kgdb_notifier); + int cpu; + struct irq_work *work; if (ret != 0) return ret; @@ -306,6 +332,12 @@ int kgdb_arch_init(void) register_break_hook(&kgdb_brkpt_hook); register_break_hook(&kgdb_compiled_brkpt_hook); register_step_hook(&kgdb_step_hook); + + for_each_possible_cpu(cpu) { + work = per_cpu_ptr(&kgdb_irq_work, cpu); + init_irq_work(work, kgdb_roundup_hook); + } + return 0; } -- 1.7.9.5

10 years, 10 months

[PATCH] arm: perf: Prevent wraparound during overflow

by Daniel Thompson

If the overflow threshold for a counter is set above or near the 0xffffffff boundary then the kernel may lose track of the overflow causing only events that occur *after* the overflow to be recorded. Specifically the problem occurs when the value of the performance counter overtakes its original programmed value due to wrap around. Typical solutions to this problem are either to avoid programming in values likely to be overtaken or to treat the overflow bit as the 33rd bit of the counter. Its somewhat fiddly to refactor the code to correctly handle the 33rd bit during irqsave sections (context switches for example) so instead we take the simpler approach of avoiding values likely to be overtaken. We set the limit to half of max_period because this matches the limit imposed in __hw_perf_event_init(). This causes a doubling of the interrupt rate for large threshold values, however even with a very fast counter ticking at 4GHz the interrupt rate would only be ~1Hz. Signed-off-by: Daniel Thompson <daniel.thompson(a)linaro.org> --- Notes: There is similar code in the arm64 tree which retains the assumptions of the original arm code regarding 32-bit wide performance counters. If this patch doesn't get beaten up during review I'll also share a similar patch for arm64. arch/arm/kernel/perf_event.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c index 266cba46db3e..b50a770f8c99 100644 --- a/arch/arm/kernel/perf_event.c +++ b/arch/arm/kernel/perf_event.c @@ -115,8 +115,14 @@ int armpmu_event_set_period(struct perf_event *event) ret = 1; } - if (left > (s64)armpmu->max_period) - left = armpmu->max_period; + /* + * Limit the maximum period to prevent the counter value + * from overtaking the one we are about to program. In + * effect we are reducing max_period to account for + * interrupt latency (and we are being very conservative). + */ + if (left > (s64)(armpmu->max_period >> 1)) + left = armpmu->max_period >> 1; local64_set(&hwc->prev_count, (u64)-left); -- 1.9.3

10 years, 10 months

next-20150106 build: 4 failures 34 warnings (next-20150106)

by Build bot for Mark Brown

Tree/Branch: next-20150106 Git describe: next-20150106 Commit: dc0bee272d Add linux-next specific files for 20150106 Build Time: 17 min 0 sec Passed: 4 / 8 ( 50.00 %) Failed: 4 / 8 ( 50.00 %) Errors: 11 Warnings: 34 Section Mismatches: 0 Failed defconfigs: arm64-allnoconfig arm64-allmodconfig arm-allmodconfig arm64-defconfig Errors: arm64-allnoconfig ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/arch_timer.h:112:2: error: implicit declaration of function 'BUG' [-Werror=implicit-function-declaration] ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) arm64-allmodconfig ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/arch_timer.h:112:2: error: implicit declaration of function 'BUG' [-Werror=implicit-function-declaration] ../arch/arm64/mm/dump.c:55:20: error: 'PCI_IOBASE' undeclared here (not in a function) ../arch/arm64/kernel/module.c:408:4: error: implicit declaration of function 'apply_alternatives' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:80:2: error: implicit declaration of function 'ioremap_cache' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:92:2: error: implicit declaration of function 'writeq_relaxed' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:101:2: error: implicit declaration of function 'iounmap' [-Werror=implicit-function-declaration] ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) arm-allmodconfig ../arch/arm/mach-imx/cpuidle-imx6sx.c:69:13: error: 'CPUIDLE_FLAG_TIME_VALID' undeclared here (not in a function) ../drivers/dma/k3dma.c:823:12: error: conflicting types for 'k3_dma_resume' arm64-defconfig ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/arch_timer.h:112:2: error: implicit declaration of function 'BUG' [-Werror=implicit-function-declaration] ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/kernel/module.c:408:4: error: implicit declaration of function 'apply_alternatives' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:80:2: error: implicit declaration of function 'ioremap_cache' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:92:2: error: implicit declaration of function 'writeq_relaxed' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:101:2: error: implicit declaration of function 'iounmap' [-Werror=implicit-function-declaration] ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 15 warnings 0 mismatches : arm64-allmodconfig 3 warnings 0 mismatches : arm-multi_v7_defconfig 20 warnings 0 mismatches : arm-allmodconfig 1 warnings 0 mismatches : arm-allnoconfig 3 warnings 0 mismatches : arm64-defconfig ------------------------------------------------------------------------------- Errors summary: 11 18 ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) 11 ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) 11 ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) 3 ../arch/arm64/include/asm/arch_timer.h:112:2: error: implicit declaration of function 'BUG' [-Werror=implicit-function-declaration] 2 ../arch/arm64/kernel/smp_spin_table.c:92:2: error: implicit declaration of function 'writeq_relaxed' [-Werror=implicit-function-declaration] 2 ../arch/arm64/kernel/smp_spin_table.c:80:2: error: implicit declaration of function 'ioremap_cache' [-Werror=implicit-function-declaration] 2 ../arch/arm64/kernel/smp_spin_table.c:101:2: error: implicit declaration of function 'iounmap' [-Werror=implicit-function-declaration] 2 ../arch/arm64/kernel/module.c:408:4: error: implicit declaration of function 'apply_alternatives' [-Werror=implicit-function-declaration] 1 ../drivers/dma/k3dma.c:823:12: error: conflicting types for 'k3_dma_resume' 1 ../arch/arm64/mm/dump.c:55:20: error: 'PCI_IOBASE' undeclared here (not in a function) 1 ../arch/arm/mach-imx/cpuidle-imx6sx.c:69:13: error: 'CPUIDLE_FLAG_TIME_VALID' undeclared here (not in a function) Warnings Summary: 34 4 <stdin>:1250:2: warning: #warning syscall execveat not implemented [-Wcpp] 2 ../include/linux/dynamic_debug.h:78:3: warning: unsupported argument to '__builtin_return_address' 2 ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] 2 ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] 2 ../drivers/clocksource/timer-marco.c:260:6: warning: unused variable 'timer_div' [-Wunused-variable] 2 ../arch/arm64/kernel/smp_spin_table.c:80:15: warning: assignment makes pointer from integer without a cast 1 ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../net/rds/iw_rdma.c:200:1: warning: the frame size of 1056 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../include/uapi/linux/swab.h:13:15: warning: integer overflow in expression [-Woverflow] 1 ../include/linux/kernel.h:717:17: warning: comparison of distinct pointer types lacks a cast 1 ../include/linux/kernel.h:711:17: warning: comparison of distinct pointer types lacks a cast 1 ../include/linux/dynamic_debug.h:64:16: warning: format '%lu' expects argument of type 'long unsigned int', but argument 10 has type 'size_t' [-Wformat=] 1 ../include/linux/dynamic_debug.h:64:16: warning: format '%d' expects argument of type 'int', but argument 4 has type 'long unsigned int' [-Wformat=] 1 ../fs/btrfs/extent_io.c:2193:13: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/usb/renesas_usbhs/common.c:471:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/usb/gadget/udc/udc-xilinx.c:2135:34: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/spi/spi-s3c64xx.c:336:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/spi/spi-s3c64xx.c:327:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/net/ethernet/rocker/rocker.c:809:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/net/ethernet/mellanox/mlx5/core/debugfs.c:467:46: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/net/ethernet/mellanox/mlx5/core/debugfs.c:307:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/net/ethernet/mellanox/mlx5/core/debugfs.c:303:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] 1 ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1208 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/irqchip/irq-gic-v3-its.c:1056:5206: warning: comparison of distinct pointer types lacks a cast 1 ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined 1 ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined 1 ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined 1 ../arch/arm64/kernel/efi.c:276:20: warning: 'free_end' may be used uninitialized in this function [-Wmaybe-uninitialized] 1 ../arch/arm/mach-imx/mach-imx6sx.c:59:20: warning: 'imx6sx_enet_plt_init' defined but not used [-Wunused-function] 1 ../arch/arm/mach-cns3xxx/pcie.c:298:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allnoconfig : FAIL, 9 errors, 0 warnings, 0 section mismatches Errors: ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/arch_timer.h:112:2: error: implicit declaration of function 'BUG' [-Werror=implicit-function-declaration] ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ------------------------------------------------------------------------------- arm64-allmodconfig : FAIL, 24 errors, 15 warnings, 0 section mismatches Errors: ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/arch_timer.h:112:2: error: implicit declaration of function 'BUG' [-Werror=implicit-function-declaration] ../arch/arm64/mm/dump.c:55:20: error: 'PCI_IOBASE' undeclared here (not in a function) ../arch/arm64/kernel/module.c:408:4: error: implicit declaration of function 'apply_alternatives' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:80:2: error: implicit declaration of function 'ioremap_cache' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:92:2: error: implicit declaration of function 'writeq_relaxed' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:101:2: error: implicit declaration of function 'iounmap' [-Werror=implicit-function-declaration] ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) Warnings: ../arch/arm64/kernel/smp_spin_table.c:80:15: warning: assignment makes pointer from integer without a cast ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../include/linux/kernel.h:717:17: warning: comparison of distinct pointer types lacks a cast ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined ../drivers/spi/spi-s3c64xx.c:327:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/spi/spi-s3c64xx.c:336:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] ../drivers/usb/gadget/udc/udc-xilinx.c:2135:34: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/usb/renesas_usbhs/common.c:471:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ------------------------------------------------------------------------------- arm-multi_v7_defconfig : PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: <stdin>:1250:2: warning: #warning syscall execveat not implemented [-Wcpp] ../drivers/clocksource/timer-marco.c:260:6: warning: unused variable 'timer_div' [-Wunused-variable] <stdin>:1250:2: warning: #warning syscall execveat not implemented [-Wcpp] ------------------------------------------------------------------------------- arm-allmodconfig : FAIL, 2 errors, 20 warnings, 0 section mismatches Errors: ../arch/arm/mach-imx/cpuidle-imx6sx.c:69:13: error: 'CPUIDLE_FLAG_TIME_VALID' undeclared here (not in a function) ../drivers/dma/k3dma.c:823:12: error: conflicting types for 'k3_dma_resume' Warnings: <stdin>:1250:2: warning: #warning syscall execveat not implemented [-Wcpp] ../arch/arm/mach-cns3xxx/pcie.c:298:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../arch/arm/mach-imx/mach-imx6sx.c:59:20: warning: 'imx6sx_enet_plt_init' defined but not used [-Wunused-function] ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../fs/btrfs/extent_io.c:2193:13: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../include/linux/dynamic_debug.h:64:16: warning: format '%lu' expects argument of type 'long unsigned int', but argument 10 has type 'size_t' [-Wformat=] ../drivers/clocksource/timer-marco.c:260:6: warning: unused variable 'timer_div' [-Wunused-variable] ../include/linux/kernel.h:711:17: warning: comparison of distinct pointer types lacks a cast ../net/rds/iw_rdma.c:200:1: warning: the frame size of 1056 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../include/linux/dynamic_debug.h:78:3: warning: unsupported argument to '__builtin_return_address' ../include/linux/dynamic_debug.h:78:3: warning: unsupported argument to '__builtin_return_address' ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1208 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../include/linux/dynamic_debug.h:64:16: warning: format '%d' expects argument of type 'int', but argument 4 has type 'long unsigned int' [-Wformat=] ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] ../drivers/net/ethernet/mellanox/mlx5/core/debugfs.c:303:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/net/ethernet/mellanox/mlx5/core/debugfs.c:307:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/net/ethernet/mellanox/mlx5/core/debugfs.c:467:46: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/net/ethernet/rocker/rocker.c:809:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../include/uapi/linux/swab.h:13:15: warning: integer overflow in expression [-Woverflow] ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ------------------------------------------------------------------------------- arm-allnoconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: <stdin>:1250:2: warning: #warning syscall execveat not implemented [-Wcpp] ------------------------------------------------------------------------------- arm64-defconfig : FAIL, 19 errors, 3 warnings, 0 section mismatches Errors: ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/arch_timer.h:112:2: error: implicit declaration of function 'BUG' [-Werror=implicit-function-declaration] ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/kernel/module.c:408:4: error: implicit declaration of function 'apply_alternatives' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:80:2: error: implicit declaration of function 'ioremap_cache' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:92:2: error: implicit declaration of function 'writeq_relaxed' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:101:2: error: implicit declaration of function 'iounmap' [-Werror=implicit-function-declaration] ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) Warnings: ../arch/arm64/kernel/smp_spin_table.c:80:15: warning: assignment makes pointer from integer without a cast ../arch/arm64/kernel/efi.c:276:20: warning: 'free_end' may be used uninitialized in this function [-Wmaybe-uninitialized] ../drivers/irqchip/irq-gic-v3-its.c:1056:5206: warning: comparison of distinct pointer types lacks a cast ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: x86_64-allnoconfig x86_64-defconfig

10 years, 10 months

[PATCH V2 00/14] cpufreq: stats: cleanups

by Viresh Kumar

This is a resend of cpufreq stats cleanups I had for sometime. Few issues were reported from Fenguang's bot and are all fixed now and are stable.. V1->V2: - Reviewed-by Prarit - Replaced lock with mutex as we may sleep from within critical region and so a new patch "cpufreq: stats: replace spinlock with mutex". Pushed here: git://git.linaro.org/people/viresh.kumar/linux.git cpufreq/stats/cleanups Viresh Kumar (14): cpufreq: stats: don't break strings into multiple lines cpufreq: stats: return -EEXIST when stats are already allocated cpufreq: stats: don't check for freq table while freeing stats cpufreq: stats: pass 'stat' to cpufreq_stats_update() cpufreq: stats: get rid of per-cpu cpufreq_stats_table cpufreq: Remove (now) unused 'last_cpu' from struct cpufreq_policy cpufreq: stats: remove cpufreq_stats_update_policy_cpu() cpufreq: remove CPUFREQ_UPDATE_POLICY_CPU notifications cpufreq: stats: create sysfs group once we are ready cpufreq: stats: don't update stats from show_trans_table() cpufreq: stats: don't update stats on false notifiers cpufreq: stats: replace spinlock with mutex cpufreq: stats: Fix locking cpufreq: stats: call cpufreq_stats_update() with locks held drivers/cpufreq/cpufreq.c | 6 -- drivers/cpufreq/cpufreq_stats.c | 148 ++++++++++++++++++---------------------- include/linux/cpufreq.h | 10 +-- 3 files changed, 73 insertions(+), 91 deletions(-) -- 2.2.0

10 years, 10 months

next-20150105 build: 4 failures 34 warnings (next-20150105)

by Build bot for Mark Brown

Tree/Branch: next-20150105 Git describe: next-20150105 Commit: 35393dcb2e Add linux-next specific files for 20150105 Build Time: 19 min 18 sec Passed: 4 / 8 ( 50.00 %) Failed: 4 / 8 ( 50.00 %) Errors: 10 Warnings: 34 Section Mismatches: 0 Failed defconfigs: arm64-allnoconfig arm64-allmodconfig arm-allmodconfig arm64-defconfig Errors: arm64-allnoconfig ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/arch_timer.h:112:2: error: implicit declaration of function 'BUG' [-Werror=implicit-function-declaration] ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) arm64-allmodconfig ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/mm/dump.c:55:20: error: 'PCI_IOBASE' undeclared here (not in a function) ../arch/arm64/include/asm/arch_timer.h:112:2: error: implicit declaration of function 'BUG' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/module.c:408:4: error: implicit declaration of function 'apply_alternatives' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:80:2: error: implicit declaration of function 'ioremap_cache' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:92:2: error: implicit declaration of function 'writeq_relaxed' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:101:2: error: implicit declaration of function 'iounmap' [-Werror=implicit-function-declaration] ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) arm-allmodconfig ../drivers/dma/k3dma.c:823:12: error: conflicting types for 'k3_dma_resume' arm64-defconfig ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/arch_timer.h:112:2: error: implicit declaration of function 'BUG' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/module.c:408:4: error: implicit declaration of function 'apply_alternatives' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:80:2: error: implicit declaration of function 'ioremap_cache' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:92:2: error: implicit declaration of function 'writeq_relaxed' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:101:2: error: implicit declaration of function 'iounmap' [-Werror=implicit-function-declaration] ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 15 warnings 0 mismatches : arm64-allmodconfig 3 warnings 0 mismatches : arm-multi_v7_defconfig 20 warnings 0 mismatches : arm-allmodconfig 1 warnings 0 mismatches : arm-allnoconfig 3 warnings 0 mismatches : arm64-defconfig ------------------------------------------------------------------------------- Errors summary: 10 18 ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) 11 ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) 11 ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) 3 ../arch/arm64/include/asm/arch_timer.h:112:2: error: implicit declaration of function 'BUG' [-Werror=implicit-function-declaration] 2 ../arch/arm64/kernel/smp_spin_table.c:92:2: error: implicit declaration of function 'writeq_relaxed' [-Werror=implicit-function-declaration] 2 ../arch/arm64/kernel/smp_spin_table.c:80:2: error: implicit declaration of function 'ioremap_cache' [-Werror=implicit-function-declaration] 2 ../arch/arm64/kernel/smp_spin_table.c:101:2: error: implicit declaration of function 'iounmap' [-Werror=implicit-function-declaration] 2 ../arch/arm64/kernel/module.c:408:4: error: implicit declaration of function 'apply_alternatives' [-Werror=implicit-function-declaration] 1 ../drivers/dma/k3dma.c:823:12: error: conflicting types for 'k3_dma_resume' 1 ../arch/arm64/mm/dump.c:55:20: error: 'PCI_IOBASE' undeclared here (not in a function) Warnings Summary: 34 4 <stdin>:1250:2: warning: #warning syscall execveat not implemented [-Wcpp] 2 ../include/linux/dynamic_debug.h:78:3: warning: unsupported argument to '__builtin_return_address' 2 ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] 2 ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] 2 ../drivers/clocksource/timer-marco.c:260:6: warning: unused variable 'timer_div' [-Wunused-variable] 2 ../arch/arm64/kernel/smp_spin_table.c:80:15: warning: assignment makes pointer from integer without a cast 1 ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../net/rds/iw_rdma.c:200:1: warning: the frame size of 1056 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../include/uapi/linux/swab.h:13:15: warning: integer overflow in expression [-Woverflow] 1 ../include/linux/kernel.h:717:17: warning: comparison of distinct pointer types lacks a cast 1 ../include/linux/kernel.h:711:17: warning: comparison of distinct pointer types lacks a cast 1 ../include/linux/dynamic_debug.h:64:16: warning: format '%lu' expects argument of type 'long unsigned int', but argument 10 has type 'size_t' [-Wformat=] 1 ../include/linux/dynamic_debug.h:64:16: warning: format '%d' expects argument of type 'int', but argument 4 has type 'long unsigned int' [-Wformat=] 1 ../fs/btrfs/extent_io.c:2193:13: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/usb/renesas_usbhs/common.c:471:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/usb/gadget/udc/udc-xilinx.c:2135:34: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/spi/spi-s3c64xx.c:336:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/spi/spi-s3c64xx.c:327:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/net/ethernet/rocker/rocker.c:809:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/net/ethernet/mellanox/mlx5/core/debugfs.c:467:46: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/net/ethernet/mellanox/mlx5/core/debugfs.c:307:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/net/ethernet/mellanox/mlx5/core/debugfs.c:303:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] 1 ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1208 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/irqchip/irq-gic-v3-its.c:1056:5206: warning: comparison of distinct pointer types lacks a cast 1 ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined 1 ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined 1 ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined 1 ../arch/arm64/kernel/efi.c:276:20: warning: 'free_end' may be used uninitialized in this function [-Wmaybe-uninitialized] 1 ../arch/arm/mach-imx/mach-imx6sx.c:59:20: warning: 'imx6sx_enet_plt_init' defined but not used [-Wunused-function] 1 ../arch/arm/mach-cns3xxx/pcie.c:298:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allnoconfig : FAIL, 9 errors, 0 warnings, 0 section mismatches Errors: ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/arch_timer.h:112:2: error: implicit declaration of function 'BUG' [-Werror=implicit-function-declaration] ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ------------------------------------------------------------------------------- arm64-allmodconfig : FAIL, 24 errors, 15 warnings, 0 section mismatches Errors: ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/mm/dump.c:55:20: error: 'PCI_IOBASE' undeclared here (not in a function) ../arch/arm64/include/asm/arch_timer.h:112:2: error: implicit declaration of function 'BUG' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/module.c:408:4: error: implicit declaration of function 'apply_alternatives' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:80:2: error: implicit declaration of function 'ioremap_cache' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:92:2: error: implicit declaration of function 'writeq_relaxed' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:101:2: error: implicit declaration of function 'iounmap' [-Werror=implicit-function-declaration] ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/processor.h:47:32: error: 'PHYS_MASK' undeclared (first use in this function) Warnings: ../arch/arm64/kernel/smp_spin_table.c:80:15: warning: assignment makes pointer from integer without a cast ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../include/linux/kernel.h:717:17: warning: comparison of distinct pointer types lacks a cast ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] ../drivers/spi/spi-s3c64xx.c:327:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/spi/spi-s3c64xx.c:336:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/usb/gadget/udc/udc-xilinx.c:2135:34: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ../drivers/usb/renesas_usbhs/common.c:471:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ------------------------------------------------------------------------------- arm-multi_v7_defconfig : PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: <stdin>:1250:2: warning: #warning syscall execveat not implemented [-Wcpp] ../drivers/clocksource/timer-marco.c:260:6: warning: unused variable 'timer_div' [-Wunused-variable] <stdin>:1250:2: warning: #warning syscall execveat not implemented [-Wcpp] ------------------------------------------------------------------------------- arm-allmodconfig : FAIL, 1 errors, 20 warnings, 0 section mismatches Errors: ../drivers/dma/k3dma.c:823:12: error: conflicting types for 'k3_dma_resume' Warnings: <stdin>:1250:2: warning: #warning syscall execveat not implemented [-Wcpp] ../arch/arm/mach-cns3xxx/pcie.c:298:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../arch/arm/mach-imx/mach-imx6sx.c:59:20: warning: 'imx6sx_enet_plt_init' defined but not used [-Wunused-function] ../include/linux/dynamic_debug.h:64:16: warning: format '%lu' expects argument of type 'long unsigned int', but argument 10 has type 'size_t' [-Wformat=] ../fs/btrfs/extent_io.c:2193:13: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../drivers/clocksource/timer-marco.c:260:6: warning: unused variable 'timer_div' [-Wunused-variable] ../include/linux/kernel.h:711:17: warning: comparison of distinct pointer types lacks a cast ../include/linux/dynamic_debug.h:78:3: warning: unsupported argument to '__builtin_return_address' ../include/linux/dynamic_debug.h:78:3: warning: unsupported argument to '__builtin_return_address' ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1208 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../include/linux/dynamic_debug.h:64:16: warning: format '%d' expects argument of type 'int', but argument 4 has type 'long unsigned int' [-Wformat=] ../net/rds/iw_rdma.c:200:1: warning: the frame size of 1056 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ../drivers/net/ethernet/mellanox/mlx5/core/debugfs.c:303:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/net/ethernet/mellanox/mlx5/core/debugfs.c:307:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/net/ethernet/mellanox/mlx5/core/debugfs.c:467:46: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../include/uapi/linux/swab.h:13:15: warning: integer overflow in expression [-Woverflow] ../drivers/net/ethernet/rocker/rocker.c:809:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ------------------------------------------------------------------------------- arm-allnoconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: <stdin>:1250:2: warning: #warning syscall execveat not implemented [-Wcpp] ------------------------------------------------------------------------------- arm64-defconfig : FAIL, 19 errors, 3 warnings, 0 section mismatches Errors: ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../arch/arm64/include/asm/arch_timer.h:112:2: error: implicit declaration of function 'BUG' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/module.c:408:4: error: implicit declaration of function 'apply_alternatives' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:80:2: error: implicit declaration of function 'ioremap_cache' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:92:2: error: implicit declaration of function 'writeq_relaxed' [-Werror=implicit-function-declaration] ../arch/arm64/kernel/smp_spin_table.c:101:2: error: implicit declaration of function 'iounmap' [-Werror=implicit-function-declaration] ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:188:10: error: 'PHYS_MASK' undeclared (first use in this function) ../include/linux/bootmem.h:196:10: error: 'PHYS_MASK' undeclared (first use in this function) Warnings: ../arch/arm64/kernel/smp_spin_table.c:80:15: warning: assignment makes pointer from integer without a cast ../arch/arm64/kernel/efi.c:276:20: warning: 'free_end' may be used uninitialized in this function [-Wmaybe-uninitialized] ../drivers/irqchip/irq-gic-v3-its.c:1056:5206: warning: comparison of distinct pointer types lacks a cast ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: x86_64-allnoconfig x86_64-defconfig

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