diff mbox series

[v3,2/5] arm64: signal: Remove unnecessary check when saving POE state

Message ID 20241029144539.111155-3-kevin.brodsky@arm.com (mailing list archive)
State New
Headers show
Series Improve arm64 pkeys handling in signal delivery | expand

Commit Message

Kevin Brodsky Oct. 29, 2024, 2:45 p.m. UTC 
The POE frame record is allocated unconditionally if POE is
supported. If the allocation fails, a SIGSEGV is delivered before
setup_sigframe() can be reached. As a result there is no need to
consider poe_offset before saving POR_EL0; just remove that check.
This is in line with other frame records (FPMR, TPIDR2).

Reviewed-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Kevin Brodsky <kevin.brodsky@arm.com>
---
 arch/arm64/kernel/signal.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/arch/arm64/kernel/signal.c b/arch/arm64/kernel/signal.c
index c7d311d8b92a..d5eb517cc4df 100644
--- a/arch/arm64/kernel/signal.c
+++ b/arch/arm64/kernel/signal.c
@@ -1154,7 +1154,7 @@  static int setup_sigframe(struct rt_sigframe_user_layout *user,
 		err |= preserve_fpmr_context(fpmr_ctx);
 	}
 
-	if (system_supports_poe() && err == 0 && user->poe_offset) {
+	if (system_supports_poe() && err == 0) {
 		struct poe_context __user *poe_ctx =
 			apply_user_offset(user, user->poe_offset);