Commit 22a3d03d authored Oct 15, 2018 by Michael Ellerman

powerpc/uapi: Fix sigcontext definition to use user_pt_regs



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: 002af939 ("powerpc: Split user/kernel definitions of struct pt_regs")
Reported-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

parent a0e10291

arch/powerpc/include/uapi/asm/sigcontext.h

+5 −1

Original line number	Diff line number	Diff line
		@@ -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;

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