提交 43683afb 编写于 作者: W Will Deacon 提交者: Catalin Marinas

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: NKyrylo Tkachov <kyrylo.tkachov@arm.com>
Signed-off-by: NWill Deacon <will.deacon@arm.com>
Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
上级 2eb835e0
......@@ -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;
......
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