Messages in this thread Patch in this message | | | From | Ravi Bangoria <> | Subject | [PATCH v5 07/16] powerpc/watchpoint: Get watchpoint count dynamically while disabling them | Date | Mon, 11 May 2020 08:29:02 +0530 |
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Instead of disabling only one watchpoint, get num of available watchpoints dynamically and disable all of them.
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Reviewed-by: Michael Neuling <mikey@neuling.org> --- arch/powerpc/include/asm/hw_breakpoint.h | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/arch/powerpc/include/asm/hw_breakpoint.h b/arch/powerpc/include/asm/hw_breakpoint.h index 1120c7d9db58..d472b2eb757e 100644 --- a/arch/powerpc/include/asm/hw_breakpoint.h +++ b/arch/powerpc/include/asm/hw_breakpoint.h @@ -78,14 +78,14 @@ extern void ptrace_triggered(struct perf_event *bp, struct perf_sample_data *data, struct pt_regs *regs); static inline void hw_breakpoint_disable(void) { - struct arch_hw_breakpoint brk; - - brk.address = 0; - brk.type = 0; - brk.len = 0; - brk.hw_len = 0; - if (ppc_breakpoint_available()) - __set_breakpoint(0, &brk); + int i; + struct arch_hw_breakpoint null_brk = {0}; + + if (!ppc_breakpoint_available()) + return; + + for (i = 0; i < nr_wp_slots(); i++) + __set_breakpoint(i, &null_brk); } extern void thread_change_pc(struct task_struct *tsk, struct pt_regs *regs); int hw_breakpoint_handler(struct die_args *args); -- 2.21.1
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