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powerpc/uapi: Fix sigcontext definition to use user_pt_regs

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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: 002af9391b ("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>
This commit is contained in:
Michael Ellerman 2018-10-15 23:01:42 +11:00
parent a0e102914a
commit 22a3d03d69
1 changed files with 5 additions and 1 deletions
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6
arch/powerpc/include/uapi/asm/sigcontext.h
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@ -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;