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Commit 43683afb authored by Will Deacon's avatar Will Deacon Committed by Catalin Marinas
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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: default avatarKyrylo Tkachov <kyrylo.tkachov@arm.com>
Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent 2eb835e0

arch/arm64/kernel/debug-monitors.c

+0 −3
Original line number Diff line number Diff line
@@ -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;