December 2017 - Linux-stable-mirror

[Linux-stable-mirror] Patch "sysrq : fix Show Regs call trace on ARM" has been added to the 4.4-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled sysrq : fix Show Regs call trace on ARM to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: sysrq-fix-show-regs-call-trace-on-arm.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Wed Dec 6 16:43:17 CET 2017 From: Jibin Xu <jibin.xu(a)windriver.com> Date: Sun, 10 Sep 2017 20:11:42 -0700 Subject: sysrq : fix Show Regs call trace on ARM From: Jibin Xu <jibin.xu(a)windriver.com> [ Upstream commit b00bebbc301c8e1f74f230dc82282e56b7e7a6db ] When kernel configuration SMP,PREEMPT and DEBUG_PREEMPT are enabled, echo 1 >/proc/sys/kernel/sysrq echo p >/proc/sysrq-trigger kernel will print call trace as below: sysrq: SysRq : Show Regs BUG: using __this_cpu_read() in preemptible [00000000] code: sh/435 caller is __this_cpu_preempt_check+0x18/0x20 Call trace: [<ffffff8008088e80>] dump_backtrace+0x0/0x1d0 [<ffffff8008089074>] show_stack+0x24/0x30 [<ffffff8008447970>] dump_stack+0x90/0xb0 [<ffffff8008463950>] check_preemption_disabled+0x100/0x108 [<ffffff8008463998>] __this_cpu_preempt_check+0x18/0x20 [<ffffff80084c9194>] sysrq_handle_showregs+0x1c/0x40 [<ffffff80084c9c7c>] __handle_sysrq+0x12c/0x1a0 [<ffffff80084ca140>] write_sysrq_trigger+0x60/0x70 [<ffffff8008251e00>] proc_reg_write+0x90/0xd0 [<ffffff80081f1788>] __vfs_write+0x48/0x90 [<ffffff80081f241c>] vfs_write+0xa4/0x190 [<ffffff80081f3354>] SyS_write+0x54/0xb0 [<ffffff80080833f0>] el0_svc_naked+0x24/0x28 This can be seen on a common board like an r-pi3. This happens because when echo p >/proc/sysrq-trigger, get_irq_regs() is called outside of IRQ context, if preemption is enabled in this situation,kernel will print the call trace. Since many prior discussions on the mailing lists have made it clear that get_irq_regs either just returns NULL or stale data when used outside of IRQ context,we simply avoid calling it outside of IRQ context. Signed-off-by: Jibin Xu <jibin.xu(a)windriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/tty/sysrq.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) --- a/drivers/tty/sysrq.c +++ b/drivers/tty/sysrq.c @@ -237,8 +237,10 @@ static void sysrq_handle_showallcpus(int * architecture has no support for it: */ if (!trigger_all_cpu_backtrace()) { - struct pt_regs *regs = get_irq_regs(); + struct pt_regs *regs = NULL; + if (in_irq()) + regs = get_irq_regs(); if (regs) { pr_info("CPU%d:\n", smp_processor_id()); show_regs(regs); @@ -257,7 +259,10 @@ static struct sysrq_key_op sysrq_showall static void sysrq_handle_showregs(int key) { - struct pt_regs *regs = get_irq_regs(); + struct pt_regs *regs = NULL; + + if (in_irq()) + regs = get_irq_regs(); if (regs) show_regs(regs); perf_event_print_debug(); Patches currently in stable-queue which might be from jibin.xu(a)windriver.com are queue-4.4/sysrq-fix-show-regs-call-trace-on-arm.patch

7 years, 1 month

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[Linux-stable-mirror] Patch "spi: sh-msiof: Fix DMA transfer size check" has been added to the 4.4-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled spi: sh-msiof: Fix DMA transfer size check to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: spi-sh-msiof-fix-dma-transfer-size-check.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Wed Dec 6 16:43:17 CET 2017 From: Hiromitsu Yamasaki <hiromitsu.yamasaki.ym(a)renesas.com> Date: Thu, 2 Nov 2017 10:32:36 +0100 Subject: spi: sh-msiof: Fix DMA transfer size check From: Hiromitsu Yamasaki <hiromitsu.yamasaki.ym(a)renesas.com> [ Upstream commit 36735783fdb599c94b9c86824583df367c65900b ] DMA supports 32-bit words only, even if BITLEN1 of SITMDR2 register is 16bit. Fixes: b0d0ce8b6b91 ("spi: sh-msiof: Add DMA support") Signed-off-by: Hiromitsu Yamasaki <hiromitsu.yamasaki.ym(a)renesas.com> Signed-off-by: Simon Horman <horms+renesas(a)verge.net.au> Acked-by: Geert Uytterhoeven <geert+renesas(a)glider.be> Acked-by: Dirk Behme <dirk.behme(a)de.bosch.com> Signed-off-by: Mark Brown <broonie(a)kernel.org> Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/spi/spi-sh-msiof.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/spi/spi-sh-msiof.c +++ b/drivers/spi/spi-sh-msiof.c @@ -863,7 +863,7 @@ static int sh_msiof_transfer_one(struct break; copy32 = copy_bswap32; } else if (bits <= 16) { - if (l & 1) + if (l & 3) break; copy32 = copy_wswap32; } else { Patches currently in stable-queue which might be from hiromitsu.yamasaki.ym(a)renesas.com are queue-4.4/spi-sh-msiof-fix-dma-transfer-size-check.patch

7 years, 1 month

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[Linux-stable-mirror] Patch "serial: 8250_fintek: Fix rs485 disablement on invalid ioctl()" has been added to the 4.4-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled serial: 8250_fintek: Fix rs485 disablement on invalid ioctl() to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: serial-8250_fintek-fix-rs485-disablement-on-invalid-ioctl.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Wed Dec 6 16:43:17 CET 2017 From: Lukas Wunner <lukas(a)wunner.de> Date: Sat, 28 Oct 2017 11:35:49 +0200 Subject: serial: 8250_fintek: Fix rs485 disablement on invalid ioctl() From: Lukas Wunner <lukas(a)wunner.de> [ Upstream commit 3236a965486ba0c6043cf2c7b51943d8b382ae29 ] This driver's ->rs485_config callback checks if SER_RS485_RTS_ON_SEND and SER_RS485_RTS_AFTER_SEND have the same value. If they do, it means the user has passed in invalid data with the TIOCSRS485 ioctl() since RTS must have a different polarity when sending and when not sending. In this case, rs485 mode is not enabled (the RS485_URA bit is not set in the RS485 Enable Register) and this is supposed to be signaled back to the user by clearing the SER_RS485_ENABLED bit in struct serial_rs485 ... except a missing tilde character is preventing that from happening. Fixes: 28e3fb6c4dce ("serial: Add support for Fintek F81216A LPC to 4 UART") Cc: Ricardo Ribalda Delgado <ricardo.ribalda(a)gmail.com> Cc: "Ji-Ze Hong (Peter Hong)" <hpeter(a)gmail.com> Signed-off-by: Lukas Wunner <lukas(a)wunner.de> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/tty/serial/8250/8250_fintek.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/tty/serial/8250/8250_fintek.c +++ b/drivers/tty/serial/8250/8250_fintek.c @@ -117,7 +117,7 @@ static int fintek_8250_rs485_config(stru if ((!!(rs485->flags & SER_RS485_RTS_ON_SEND)) == (!!(rs485->flags & SER_RS485_RTS_AFTER_SEND))) - rs485->flags &= SER_RS485_ENABLED; + rs485->flags &= ~SER_RS485_ENABLED; else config |= RS485_URA; Patches currently in stable-queue which might be from lukas(a)wunner.de are queue-4.4/serial-8250_fintek-fix-rs485-disablement-on-invalid-ioctl.patch

7 years, 1 month

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[Linux-stable-mirror] Patch "selftests/x86/ldt_get: Add a few additional tests for limits" has been added to the 4.4-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled selftests/x86/ldt_get: Add a few additional tests for limits to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: selftests-x86-ldt_get-add-a-few-additional-tests-for-limits.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Wed Dec 6 16:43:17 CET 2017 From: Andy Lutomirski <luto(a)kernel.org> Date: Sat, 4 Nov 2017 04:19:52 -0700 Subject: selftests/x86/ldt_get: Add a few additional tests for limits From: Andy Lutomirski <luto(a)kernel.org> [ Upstream commit fec8f5ae1715a01c72ad52cb2ecd8aacaf142302 ] We weren't testing the .limit and .limit_in_pages fields very well. Add more tests. This addition seems to trigger the "bits 16:19 are undefined" issue that was fixed in an earlier patch. I think that, at least on my CPU, the high nibble of the limit ends in LAR bits 16:19. Signed-off-by: Andy Lutomirski <luto(a)kernel.org> Cc: Borislav Petkov <bpetkov(a)suse.de> Cc: Linus Torvalds <torvalds(a)linux-foundation.org> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Thomas Gleixner <tglx(a)linutronix.de> Link: http://lkml.kernel.org/r/5601c15ea9b3113d288953fd2838b18bedf6bc67.150979432… Signed-off-by: Ingo Molnar <mingo(a)kernel.org> Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- tools/testing/selftests/x86/ldt_gdt.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) --- a/tools/testing/selftests/x86/ldt_gdt.c +++ b/tools/testing/selftests/x86/ldt_gdt.c @@ -351,9 +351,24 @@ static void do_simple_tests(void) install_invalid(&desc, false); desc.seg_not_present = 0; - desc.read_exec_only = 0; desc.seg_32bit = 1; + desc.read_exec_only = 0; + desc.limit = 0xfffff; + install_valid(&desc, AR_DPL3 | AR_TYPE_RWDATA | AR_S | AR_P | AR_DB); + + desc.limit_in_pages = 1; + + install_valid(&desc, AR_DPL3 | AR_TYPE_RWDATA | AR_S | AR_P | AR_DB | AR_G); + desc.read_exec_only = 1; + install_valid(&desc, AR_DPL3 | AR_TYPE_RODATA | AR_S | AR_P | AR_DB | AR_G); + desc.contents = 1; + desc.read_exec_only = 0; + install_valid(&desc, AR_DPL3 | AR_TYPE_RWDATA_EXPDOWN | AR_S | AR_P | AR_DB | AR_G); + desc.read_exec_only = 1; + install_valid(&desc, AR_DPL3 | AR_TYPE_RODATA_EXPDOWN | AR_S | AR_P | AR_DB | AR_G); + + desc.limit = 0; install_invalid(&desc, true); } Patches currently in stable-queue which might be from luto(a)kernel.org are queue-4.4/selftests-x86-ldt_get-add-a-few-additional-tests-for-limits.patch queue-4.4/x86-entry-use-syscall_define-macros-for-sys_modify_ldt.patch

7 years, 1 month

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[Linux-stable-mirror] Patch "serial: 8250: Preserve DLD[7:4] for PORT_XR17V35X" has been added to the 4.4-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled serial: 8250: Preserve DLD[7:4] for PORT_XR17V35X to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: serial-8250-preserve-dld-for-port_xr17v35x.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Wed Dec 6 16:43:17 CET 2017 From: Aaron Sierra <asierra(a)xes-inc.com> Date: Wed, 4 Oct 2017 10:01:28 -0500 Subject: serial: 8250: Preserve DLD[7:4] for PORT_XR17V35X From: Aaron Sierra <asierra(a)xes-inc.com> [ Upstream commit 0ab84da2e076948c49d36197ee7d254125c53eab ] The upper four bits of the XR17V35x fractional divisor register (DLD) control general chip function (RS-485 direction pin polarity, multidrop mode, XON/XOFF parity check, and fast IR mode). Don't allow these bits to be clobbered when setting the baudrate. Signed-off-by: Aaron Sierra <asierra(a)xes-inc.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/tty/serial/8250/8250_port.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) --- a/drivers/tty/serial/8250/8250_port.c +++ b/drivers/tty/serial/8250/8250_port.c @@ -2223,8 +2223,11 @@ static void serial8250_set_divisor(struc serial_dl_write(up, quot); /* XR17V35x UARTs have an extra fractional divisor register (DLD) */ - if (up->port.type == PORT_XR17V35X) + if (up->port.type == PORT_XR17V35X) { + /* Preserve bits not related to baudrate; DLD[7:4]. */ + quot_frac |= serial_port_in(port, 0x2) & 0xf0; serial_port_out(port, 0x2, quot_frac); + } } static unsigned int Patches currently in stable-queue which might be from asierra(a)xes-inc.com are queue-4.4/serial-8250-preserve-dld-for-port_xr17v35x.patch

7 years, 1 month

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[Linux-stable-mirror] Patch "s390/pci: do not require AIS facility" has been added to the 4.4-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled s390/pci: do not require AIS facility to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: s390-pci-do-not-require-ais-facility.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Wed Dec 6 16:43:17 CET 2017 From: Christian Borntraeger <borntraeger(a)de.ibm.com> Date: Mon, 30 Oct 2017 14:38:58 +0100 Subject: s390/pci: do not require AIS facility From: Christian Borntraeger <borntraeger(a)de.ibm.com> [ Upstream commit 48070c73058be6de9c0d754d441ed7092dfc8f12 ] As of today QEMU does not provide the AIS facility to its guest. This prevents Linux guests from using PCI devices as the ais facility is checked during init. As this is just a performance optimization, we can move the ais check into the code where we need it (calling the SIC instruction). This is used at initialization and on interrupt. Both places do not require any serialization, so we can simply skip the instruction. Since we will now get all interrupts, we can also avoid the 2nd scan. As we can have multiple interrupts in parallel we might trigger spurious irqs more often for the non-AIS case but the core code can handle that. Signed-off-by: Christian Borntraeger <borntraeger(a)de.ibm.com> Reviewed-by: Pierre Morel <pmorel(a)linux.vnet.ibm.com> Reviewed-by: Halil Pasic <pasic(a)linux.vnet.ibm.com> Acked-by: Sebastian Ott <sebott(a)linux.vnet.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens(a)de.ibm.com> Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- arch/s390/include/asm/pci_insn.h | 2 +- arch/s390/pci/pci.c | 5 +++-- arch/s390/pci/pci_insn.c | 6 +++++- 3 files changed, 9 insertions(+), 4 deletions(-) --- a/arch/s390/include/asm/pci_insn.h +++ b/arch/s390/include/asm/pci_insn.h @@ -81,6 +81,6 @@ int zpci_refresh_trans(u64 fn, u64 addr, int zpci_load(u64 *data, u64 req, u64 offset); int zpci_store(u64 data, u64 req, u64 offset); int zpci_store_block(const u64 *data, u64 req, u64 offset); -void zpci_set_irq_ctrl(u16 ctl, char *unused, u8 isc); +int zpci_set_irq_ctrl(u16 ctl, char *unused, u8 isc); #endif --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -359,7 +359,8 @@ static void zpci_irq_handler(struct airq /* End of second scan with interrupts on. */ break; /* First scan complete, reenable interrupts. */ - zpci_set_irq_ctrl(SIC_IRQ_MODE_SINGLE, NULL, PCI_ISC); + if (zpci_set_irq_ctrl(SIC_IRQ_MODE_SINGLE, NULL, PCI_ISC)) + break; si = 0; continue; } @@ -921,7 +922,7 @@ static int __init pci_base_init(void) if (!s390_pci_probe) return 0; - if (!test_facility(69) || !test_facility(71) || !test_facility(72)) + if (!test_facility(69) || !test_facility(71)) return 0; rc = zpci_debug_init(); --- a/arch/s390/pci/pci_insn.c +++ b/arch/s390/pci/pci_insn.c @@ -7,6 +7,7 @@ #include <linux/export.h> #include <linux/errno.h> #include <linux/delay.h> +#include <asm/facility.h> #include <asm/pci_insn.h> #include <asm/pci_debug.h> #include <asm/processor.h> @@ -91,11 +92,14 @@ int zpci_refresh_trans(u64 fn, u64 addr, } /* Set Interruption Controls */ -void zpci_set_irq_ctrl(u16 ctl, char *unused, u8 isc) +int zpci_set_irq_ctrl(u16 ctl, char *unused, u8 isc) { + if (!test_facility(72)) + return -EIO; asm volatile ( " .insn rsy,0xeb00000000d1,%[ctl],%[isc],%[u]\n" : : [ctl] "d" (ctl), [isc] "d" (isc << 27), [u] "Q" (*unused)); + return 0; } /* PCI Load */ Patches currently in stable-queue which might be from borntraeger(a)de.ibm.com are queue-4.4/s390-pci-do-not-require-ais-facility.patch

7 years, 1 month

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[Linux-stable-mirror] Patch "perf test attr: Fix ignored test case result" has been added to the 4.4-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled perf test attr: Fix ignored test case result to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: perf-test-attr-fix-ignored-test-case-result.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Wed Dec 6 16:43:17 CET 2017 From: Thomas Richter <tmricht(a)linux.vnet.ibm.com> Date: Wed, 13 Sep 2017 10:12:09 +0200 Subject: perf test attr: Fix ignored test case result From: Thomas Richter <tmricht(a)linux.vnet.ibm.com> [ Upstream commit 22905582f6dd4bbd0c370fe5732c607452010c04 ] Command perf test -v 16 (Setup struct perf_event_attr test) always reports success even if the test case fails. It works correctly if you also specify -F (for don't fork). root@s35lp76 perf]# ./perf test -v 16 15: Setup struct perf_event_attr : --- start --- running './tests/attr/test-record-no-delay' [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.002 MB /tmp/tmp4E1h7R/perf.data (1 samples) ] expected task=0, got 1 expected precise_ip=0, got 3 expected wakeup_events=1, got 0 FAILED './tests/attr/test-record-no-delay' - match failure test child finished with 0 ---- end ---- Setup struct perf_event_attr: Ok The reason for the wrong error reporting is the return value of the system() library call. It is called in run_dir() file tests/attr.c and returns the exit status, in above case 0xff00. This value is given as parameter to the exit() function which can only handle values 0-0xff. The child process terminates with exit value of 0 and the parent does not detect any error. This patch corrects the error reporting and prints the correct test result. Signed-off-by: Thomas-Mich Richter <tmricht(a)linux.vnet.ibm.com> Acked-by: Jiri Olsa <jolsa(a)kernel.org> Cc: Heiko Carstens <heiko.carstens(a)de.ibm.com> Cc: Hendrik Brueckner <brueckner(a)linux.vnet.ibm.com> Cc: Martin Schwidefsky <schwidefsky(a)de.ibm.com> Cc: Thomas-Mich Richter <tmricht(a)linux.vnet.ibm.com> LPU-Reference: 20170913081209.39570-2-tmricht(a)linux.vnet.ibm.com Link: http://lkml.kernel.org/n/tip-rdube6rfcjsr1nzue72c7lqn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme(a)redhat.com> Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- tools/perf/tests/attr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/tools/perf/tests/attr.c +++ b/tools/perf/tests/attr.c @@ -150,7 +150,7 @@ static int run_dir(const char *d, const snprintf(cmd, 3*PATH_MAX, PYTHON " %s/attr.py -d %s/attr/ -p %s %.*s", d, d, perf, vcnt, v); - return system(cmd); + return system(cmd) ? TEST_FAIL : TEST_OK; } int test__attr(void) Patches currently in stable-queue which might be from tmricht(a)linux.vnet.ibm.com are queue-4.4/perf-test-attr-fix-ignored-test-case-result.patch

7 years, 1 month

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[Linux-stable-mirror] Patch "ravb: Remove Rx overflow log messages" has been added to the 4.4-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled ravb: Remove Rx overflow log messages to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: ravb-remove-rx-overflow-log-messages.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Wed Dec 6 16:43:17 CET 2017 From: Kazuya Mizuguchi <kazuya.mizuguchi.ks(a)renesas.com> Date: Thu, 12 Jan 2017 13:21:06 +0100 Subject: ravb: Remove Rx overflow log messages From: Kazuya Mizuguchi <kazuya.mizuguchi.ks(a)renesas.com> [ Upstream commit 18a3ed59d09cf81a6447aadf6931bf0c9ffec5e0 ] Remove Rx overflow log messages as in an environment where logging results in network traffic logging may cause further overflows. Fixes: c156633f1353 ("Renesas Ethernet AVB driver proper") Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks(a)renesas.com> [simon: reworked changelog] Signed-off-by: Simon Horman <horms+renesas(a)verge.net.au> Acked-by: Sergei Shtylyov <sergei.shtylyov(a)cogentembedded.com> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/net/ethernet/renesas/ravb_main.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -831,14 +831,10 @@ static int ravb_poll(struct napi_struct /* Receive error message handling */ priv->rx_over_errors = priv->stats[RAVB_BE].rx_over_errors; priv->rx_over_errors += priv->stats[RAVB_NC].rx_over_errors; - if (priv->rx_over_errors != ndev->stats.rx_over_errors) { + if (priv->rx_over_errors != ndev->stats.rx_over_errors) ndev->stats.rx_over_errors = priv->rx_over_errors; - netif_err(priv, rx_err, ndev, "Receive Descriptor Empty\n"); - } - if (priv->rx_fifo_errors != ndev->stats.rx_fifo_errors) { + if (priv->rx_fifo_errors != ndev->stats.rx_fifo_errors) ndev->stats.rx_fifo_errors = priv->rx_fifo_errors; - netif_err(priv, rx_err, ndev, "Receive FIFO Overflow\n"); - } out: return budget - quota; } Patches currently in stable-queue which might be from kazuya.mizuguchi.ks(a)renesas.com are queue-4.4/ravb-remove-rx-overflow-log-messages.patch

7 years, 1 month

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[Linux-stable-mirror] Patch "NFSv4: Fix client recovery when server reboots multiple times" has been added to the 4.4-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled NFSv4: Fix client recovery when server reboots multiple times to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: nfsv4-fix-client-recovery-when-server-reboots-multiple-times.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Wed Dec 6 16:43:17 CET 2017 From: Trond Myklebust <trond.myklebust(a)primarydata.com> Date: Fri, 13 Jan 2017 13:31:32 -0500 Subject: NFSv4: Fix client recovery when server reboots multiple times From: Trond Myklebust <trond.myklebust(a)primarydata.com> [ Upstream commit c6180a6237174f481dc856ed6e890d8196b6f0fb ] If the server reboots multiple times, the client should rely on the server to tell it that it cannot reclaim state as per section 9.6.3.4 in RFC7530 and section 8.4.2.1 in RFC5661. Currently, the client is being to conservative, and is assuming that if the server reboots while state recovery is in progress, then it must ignore state that was not recovered before the reboot. Signed-off-by: Trond Myklebust <trond.myklebust(a)primarydata.com> Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- fs/nfs/nfs4state.c | 1 - 1 file changed, 1 deletion(-) --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -1680,7 +1680,6 @@ static int nfs4_recovery_handle_error(st break; case -NFS4ERR_STALE_CLIENTID: set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state); - nfs4_state_clear_reclaim_reboot(clp); nfs4_state_start_reclaim_reboot(clp); break; case -NFS4ERR_EXPIRED: Patches currently in stable-queue which might be from trond.myklebust(a)primarydata.com are queue-4.4/nfsv4-fix-client-recovery-when-server-reboots-multiple-times.patch queue-4.4/nfs-don-t-take-a-reference-on-fl-fl_file-for-lock-operation.patch

7 years, 1 month

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[Linux-stable-mirror] Patch "net: systemport: Utilize skb_put_padto()" has been added to the 4.4-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled net: systemport: Utilize skb_put_padto() to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: net-systemport-utilize-skb_put_padto.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From foo@baz Wed Dec 6 16:43:17 CET 2017 From: Florian Fainelli <f.fainelli(a)gmail.com> Date: Tue, 3 Jan 2017 16:34:48 -0800 Subject: net: systemport: Utilize skb_put_padto() From: Florian Fainelli <f.fainelli(a)gmail.com> [ Upstream commit bb7da333d0a9f3bddc08f84187b7579a3f68fd24 ] Since we need to pad our packets, utilize skb_put_padto() which increases skb->len by how much we need to pad, allowing us to eliminate the test on skb->len right below. Signed-off-by: Florian Fainelli <f.fainelli(a)gmail.com> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/net/ethernet/broadcom/bcmsysport.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) --- a/drivers/net/ethernet/broadcom/bcmsysport.c +++ b/drivers/net/ethernet/broadcom/bcmsysport.c @@ -1061,13 +1061,12 @@ static netdev_tx_t bcm_sysport_xmit(stru * (including FCS and tag) because the length verification is done after * the Broadcom tag is stripped off the ingress packet. */ - if (skb_padto(skb, ETH_ZLEN + ENET_BRCM_TAG_LEN)) { + if (skb_put_padto(skb, ETH_ZLEN + ENET_BRCM_TAG_LEN)) { ret = NETDEV_TX_OK; goto out; } - skb_len = skb->len < ETH_ZLEN + ENET_BRCM_TAG_LEN ? - ETH_ZLEN + ENET_BRCM_TAG_LEN : skb->len; + skb_len = skb->len; mapping = dma_map_single(kdev, skb->data, skb_len, DMA_TO_DEVICE); if (dma_mapping_error(kdev, mapping)) { Patches currently in stable-queue which might be from f.fainelli(a)gmail.com are queue-4.4/net-systemport-pad-packet-before-inserting-tsb.patch queue-4.4/net-systemport-utilize-skb_put_padto.patch

7 years, 1 month

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Linux-stable-mirror December 2017