[REVIEW][PATCH 6/9] signal/powerpc: Call force_sig_fault from _exception

From: Eric W. Biederman
Date: Tue Sep 18 2018 - 13:59:48 EST


The callers of _exception don't need the pkey exception logic because
they are not processing a pkey exception. So just call exception_common
directly and then call force_sig_fault to generate the appropriate siginfo
and deliver the appropriate signal.

Signed-off-by: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
---
arch/powerpc/kernel/traps.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index f6c778b5144f..c38bec51dd84 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -380,7 +380,10 @@ void _exception_pkey(int signr, struct pt_regs *regs, int code, unsigned long ad

void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr)
{
- _exception_pkey(signr, regs, code, addr, 0);
+ if (!exception_common(signr, regs, code, addr))
+ return;
+
+ force_sig_fault(signr, code, (void __user *)addr, current);
}

void system_reset_exception(struct pt_regs *regs)
--
2.17.1