[ck] [PATCH openEuler v1 044/119] openeuler: firmware: arm_sdei: Prohibit probing in '_sdei_handler'

From: Xiongfeng Wang <wangxiongfeng2(a)huawei.com> commit 046d2b6c1b50b832fd62e75a951bf15ed84d7f43 openEuler-1.0. Functions called in '_sdei_handler' are needed to be marked as 'nokprobe'. Because these functions are called in NMI context and neither the arch-code's debug infrastructure nor kprobes core supports this. Signed-off-by: Xiongfeng Wang <wangxiongfeng2(a)huawei.com> Reviewed-by: James Morse <james.morse(a)arm.com> Reviewed-by: Yang Yingliang <yangyingliang(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> Signed-off-by: Xin Hao <haoxing990(a)gmail.com> --- drivers/firmware/arm_sdei.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/firmware/arm_sdei.c b/drivers/firmware/arm_sdei.c index a7480f21826a..363ffd37a5f7 100644 --- a/drivers/firmware/arm_sdei.c +++ b/drivers/firmware/arm_sdei.c @@ -165,6 +165,7 @@ static int invoke_sdei_fn(unsigned long function_id, unsigned long arg0, return err; } +NOKPROBE_SYMBOL(invoke_sdei_fn); static struct sdei_event *sdei_event_find(u32 event_num) { @@ -901,6 +902,7 @@ static void sdei_smccc_smc(unsigned long function_id, { arm_smccc_smc(function_id, arg0, arg1, arg2, arg3, arg4, 0, 0, res); } +NOKPROBE_SYMBOL(sdei_smccc_smc); static void sdei_smccc_hvc(unsigned long function_id, unsigned long arg0, unsigned long arg1, @@ -909,6 +911,7 @@ static void sdei_smccc_hvc(unsigned long function_id, { arm_smccc_hvc(function_id, arg0, arg1, arg2, arg3, arg4, 0, 0, res); } +NOKPROBE_SYMBOL(sdei_smccc_hvc); int sdei_register_ghes(struct ghes *ghes, sdei_event_callback *normal_cb, sdei_event_callback *critical_cb) -- 2.31.0