This is a note to let you know that I've just added the patch titled
parisc: regs_return_value() should return gpr28
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
parisc-regs_return_value-should-return-gpr28.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 45efd871bf0a47648f119d1b41467f70484de5bc Mon Sep 17 00:00:00 2001
From: Sven Schnelle <svens@xxxxxxxxxxxxxx>
Date: Thu, 4 Apr 2019 18:16:03 +0200
Subject: parisc: regs_return_value() should return gpr28
From: Sven Schnelle <svens@xxxxxxxxxxxxxx>
commit 45efd871bf0a47648f119d1b41467f70484de5bc upstream.
While working on kretprobes for PA-RISC I was wondering while the
kprobes sanity test always fails on kretprobes. This is caused by
returning gpr20 instead of gpr28.
Signed-off-by: Sven Schnelle <svens@xxxxxxxxxxxxxx>
Signed-off-by: Helge Deller <deller@xxxxxx>
Cc: stable@xxxxxxxxxxxxxxx # 4.14+
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/parisc/include/asm/ptrace.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/parisc/include/asm/ptrace.h
+++ b/arch/parisc/include/asm/ptrace.h
@@ -22,7 +22,7 @@ unsigned long profile_pc(struct pt_regs
static inline unsigned long regs_return_value(struct pt_regs *regs)
{
- return regs->gr[20];
+ return regs->gr[28];
}
static inline void instruction_pointer_set(struct pt_regs *regs,
Patches currently in stable-queue which might be from svens@xxxxxxxxxxxxxx are
queue-4.19/parisc-regs_return_value-should-return-gpr28.patch
queue-4.19/parisc-also-set-iaoq_b-in-instruction_pointer_set.patch
