do_sea() calls arm64_notify_die() which will always signal
user-space. It also returns whether APEI claimed the external
abort as a RAS notification. If it returns failure do_mem_abort()
will signal user-space too.
do_mem_abort() wants to know if we handled the error, we always
call arm64_notify_die() so can always return success.
Signed-off-by: Dongjiu Geng <gengdong...@huawei.com>
---
1. Address James's comments to update the commit messages
2. Address James's comments to not change the si_code for SIGBUS
---
arch/arm64/mm/fault.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index b64958b..38b9f3e 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -610,7 +610,6 @@ static int do_sea(unsigned long addr, unsigned int esr,
struct pt_regs *regs)
{
struct siginfo info;
const struct fault_info *inf;
- int ret = 0;
inf = esr_to_fault_info(esr);
pr_err("Synchronous External Abort: %s (0x%08x) at 0x%016lx\n",
@@ -625,7 +624,7 @@ static int do_sea(unsigned long addr, unsigned int esr,
struct pt_regs *regs)
if (interrupts_enabled(regs))
nmi_enter();
- ret = ghes_notify_sea();
+ ghes_notify_sea();
if (interrupts_enabled(regs))
nmi_exit();
@@ -640,7 +639,7 @@ static int do_sea(unsigned long addr, unsigned int esr,
struct pt_regs *regs)
info.si_addr = (void __user *)addr;
arm64_notify_die("", regs, &info, esr);
- return ret;
+ return 0;
}
static const struct fault_info fault_info[] = {
--
2.10.1
