arm64: use a common struct frame_record

Currently the signal handling code has its own struct frame_record,
the definition of struct pt_regs open-codes a frame record as an array,
and the kernel unwinder hard-codes frame record offsets.

Move to a common struct frame_record that can be used throughout the
kernel.

Signed-off-by: Mark Rutland <[email protected]>
Reviewed-by: Mark Brown <[email protected]>
Reviewed-by: Miroslav Benes <[email protected]>
Reviewed-by: Puranjay Mohan <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Josh Poimboeuf <[email protected]>
Cc: Kalesh Singh <[email protected]>
Cc: Madhavan T. Venkataraman <[email protected]>
Cc: Marc Zyngier <[email protected]>
Cc: Will Deacon <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Catalin Marinas <[email protected]>

1 files changed, 0 insertions, 5 deletions

diff --git a/arch/arm64/kernel/signal.c b/arch/arm64/kernel/signal.c
index 561986947530..2c47f9a0e40b 100644
--- a/arch/arm64/kernel/signal.c
+++ b/arch/arm64/kernel/signal.c
@@ -42,11 +42,6 @@ struct rt_sigframe {
 	struct ucontext uc;
 };
 
-struct frame_record {
-	u64 fp;
-	u64 lr;
-};
-
 struct rt_sigframe_user_layout {
 	struct rt_sigframe __user *sigframe;
 	struct frame_record __user *next_frame;