Commit 0246d0aa authored by Qing Zhang's avatar Qing Zhang Committed by Huacai Chen
Browse files

LoongArch: Avoid uninitialized alignment_mask 



The hardware monitoring points for instruction fetching and load/store
operations need to align 4 bytes and 1/2/4/8 bytes respectively.

Reported-by: default avatarColin King <colin.i.king@gmail.com>
Signed-off-by: default avatarQing Zhang <zhangqing@loongson.cn>
Signed-off-by: default avatarHuacai Chen <chenhuacai@loongson.cn>
parent 96236912

arch/loongarch/kernel/hw_breakpoint.c

+2 −0
Original line number Diff line number Diff line
@@ -396,6 +396,8 @@ int hw_breakpoint_arch_parse(struct perf_event *bp, 


	if (hw->ctrl.type != LOONGARCH_BREAKPOINT_EXECUTE)

		alignment_mask = 0x7;

	else

		alignment_mask = 0x3;

	offset = hw->address & alignment_mask;



	hw->address &= ~alignment_mask;