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| author | Will Deacon <will.deacon@arm.com> | 2014-04-17 12:37:14 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2014-04-25 16:46:50 +0100 |
| commit | 43683afbcb32f7b7318ac1badd6469d91fe22711 (patch) | |
| tree | 7278aa89b4da8148393092d5944b45284a0a2590 | |
| parent | 2eb835e058c737205d35d9a8791ad27b0f9e89a4 (diff) | |
| download | op-kernel-dev-43683afbcb32f7b7318ac1badd6469d91fe22711.zip op-kernel-dev-43683afbcb32f7b7318ac1badd6469d91fe22711.tar.gz | |
arm64: debug: remove noisy, pointless warning
Sending a SIGTRAP to a user task after execution of a BRK instruction at
EL0 is fundamental to the way in which software breakpoints work and
doesn't deserve a warning to be logged in dmesg. Whilst the warning can
be justified from EL1, do_debug_exception will already do the right thing,
so simply remove the code altogether.
Cc: Sandeepa Prabhu <sandeepa.prabhu@linaro.org>
Reported-by: Kyrylo Tkachov <kyrylo.tkachov@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
| -rw-r--r-- | arch/arm64/kernel/debug-monitors.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/arm64/kernel/debug-monitors.c b/arch/arm64/kernel/debug-monitors.c index ed3955a..a7fb874 100644 --- a/arch/arm64/kernel/debug-monitors.c +++ b/arch/arm64/kernel/debug-monitors.c @@ -318,9 +318,6 @@ static int brk_handler(unsigned long addr, unsigned int esr, if (call_break_hook(regs, esr) == DBG_HOOK_HANDLED) return 0; - pr_warn("unexpected brk exception at %lx, esr=0x%x\n", - (long)instruction_pointer(regs), esr); - if (!user_mode(regs)) return -EFAULT; |
