My recent patch to split pt_regs between user and kernel missed
the usage in struct sigcontext.
Because this is a user visible struct it should be using the user
visible definition, which when we're building for the kernel is called
struct user_pt_regs.
As far as I can see this hasn't actually caused a bug (yet), because
we don't use the sizeof() the sigcontext->regs anywhere. But we should
still fix it to avoid confusion and future bugs.
Fixes: 002af9391bfb ("powerpc: Split user/kernel definitions of struct pt_regs")
Reported-by: Madhavan Srinivasan <ma...@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <m...@ellerman.id.au>
---
arch/powerpc/include/uapi/asm/sigcontext.h | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/include/uapi/asm/sigcontext.h
b/arch/powerpc/include/uapi/asm/sigcontext.h
index 2fbe485acdb4..630aeda56d59 100644
--- a/arch/powerpc/include/uapi/asm/sigcontext.h
+++ b/arch/powerpc/include/uapi/asm/sigcontext.h
@@ -22,7 +22,11 @@ struct sigcontext {
#endif
unsigned long handler;
unsigned long oldmask;
- struct pt_regs __user *regs;
+#ifdef __KERNEL__
+ struct user_pt_regs __user *regs;
+#else
+ struct pt_regs *regs;
+#endif
#ifdef __powerpc64__
elf_gregset_t gp_regs;
elf_fpregset_t fp_regs;
--
2.17.1
