From: Kefeng Wang wangkefeng.wang@huawei.com
commit 48084c3595cb7429f6ba734cfea1313573b9a7fa upstream.
Selecting PERF_EVENTS without selecting RISCV_BASE_PMU results in a build error.
Signed-off-by: Kefeng Wang wangkefeng.wang@huawei.com [Palmer: commit text] Fixes: 178e9fc47aae("perf: riscv: preliminary RISC-V support") Signed-off-by: Palmer Dabbelt palmerdabbelt@google.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- arch/riscv/include/asm/perf_event.h | 8 ++------ arch/riscv/kernel/Makefile | 2 +- 2 files changed, 3 insertions(+), 7 deletions(-)
--- a/arch/riscv/include/asm/perf_event.h +++ b/arch/riscv/include/asm/perf_event.h @@ -12,19 +12,14 @@ #include <linux/ptrace.h> #include <linux/interrupt.h>
+#ifdef CONFIG_RISCV_BASE_PMU #define RISCV_BASE_COUNTERS 2
/* * The RISCV_MAX_COUNTERS parameter should be specified. */
-#ifdef CONFIG_RISCV_BASE_PMU #define RISCV_MAX_COUNTERS 2 -#endif - -#ifndef RISCV_MAX_COUNTERS -#error "Please provide a valid RISCV_MAX_COUNTERS for the PMU." -#endif
/* * These are the indexes of bits in counteren register *minus* 1, @@ -82,6 +77,7 @@ struct riscv_pmu { int irq; };
+#endif #ifdef CONFIG_PERF_EVENTS #define perf_arch_bpf_user_pt_regs(regs) (struct user_regs_struct *)regs #endif --- a/arch/riscv/kernel/Makefile +++ b/arch/riscv/kernel/Makefile @@ -38,7 +38,7 @@ obj-$(CONFIG_MODULE_SECTIONS) += module- obj-$(CONFIG_FUNCTION_TRACER) += mcount.o ftrace.o obj-$(CONFIG_DYNAMIC_FTRACE) += mcount-dyn.o
-obj-$(CONFIG_PERF_EVENTS) += perf_event.o +obj-$(CONFIG_RISCV_BASE_PMU) += perf_event.o obj-$(CONFIG_PERF_EVENTS) += perf_callchain.o obj-$(CONFIG_HAVE_PERF_REGS) += perf_regs.o obj-$(CONFIG_RISCV_SBI) += sbi.o