[PATCH] arm64: fix build error in sigcontext.h

[Mark Salter]

I'm seeing this build failure for arm64:

    CC [M]  Documentation/filesystems/configfs/configfs_example_macros.o
  In file included from /usr/include/bits/sigcontext.h:27:0,
                   from /usr/include/signal.h:340,
                   from /usr/include/sys/wait.h:30,
                   from Documentation/accounting/getdelays.c:24:
  .../linux/usr/include/asm/sigcontext.h:61:2: error: unknown type name âu64â
    u64 esr;
    ^
  make[2]: *** [Documentation/accounting/getdelays] Error 1

This was introduced by commit 15af1942dd61ee23:

  arm64: Expose ESR_EL1 information to user when SIGSEGV/SIGBUS

Using __u64 instead of u64 fixes the problem.

Signed-off-by: Mark Salter <msalter@xxxxxxxxxx>
---
 arch/arm64/include/uapi/asm/sigcontext.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/include/uapi/asm/sigcontext.h b/arch/arm64/include/uapi/asm/sigcontext.h
index b72cf40..ee469be 100644
--- a/arch/arm64/include/uapi/asm/sigcontext.h
+++ b/arch/arm64/include/uapi/asm/sigcontext.h
@@ -58,7 +58,7 @@ struct fpsimd_context {
 
 struct esr_context {
 	struct _aarch64_ctx head;
-	u64 esr;
+	__u64 esr;
 };
 
 #endif /* _UAPI__ASM_SIGCONTEXT_H */
-- 
1.9.0

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