From: Qing Zhang <zhangqing@xxxxxxxxxxx> [ Upstream commit 0246d0aaf0a634a65135050011767b56ba351a8f ] 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: Colin King <colin.i.king@xxxxxxxxx> Signed-off-by: Qing Zhang <zhangqing@xxxxxxxxxxx> Signed-off-by: Huacai Chen <chenhuacai@xxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- arch/loongarch/kernel/hw_breakpoint.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/loongarch/kernel/hw_breakpoint.c b/arch/loongarch/kernel/hw_breakpoint.c index 2406c95b34cc4..021b59c248fac 100644 --- a/arch/loongarch/kernel/hw_breakpoint.c +++ b/arch/loongarch/kernel/hw_breakpoint.c @@ -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; -- 2.39.2
