Re: [PATCH v06 12/36] x86 uapi asm/signal.h: use __kernel_size_t instead of size_t
From: Dmitry V. Levin <hidden>
Date: 2017-08-08 22:50:30
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On Sun, Aug 06, 2017 at 06:44:03PM +0200, Mikko Rapeli wrote:
quoted hunk ↗ jump to hunk
Fixes userspace compilation error: error: unknown type name ‘size_t’ Signed-off-by: Mikko Rapeli <redacted> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Arnd Bergmann <arnd@arndb.de> Cc: H. Peter Anvin <hpa@zytor.com> --- arch/x86/include/uapi/asm/signal.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)diff --git a/arch/x86/include/uapi/asm/signal.h b/arch/x86/include/uapi/asm/signal.h index 8264f47cf53e..74346db30758 100644 --- a/arch/x86/include/uapi/asm/signal.h +++ b/arch/x86/include/uapi/asm/signal.h@@ -127,7 +127,7 @@ struct sigaction { typedef struct sigaltstack { void __user *ss_sp; int ss_flags; - size_t ss_size; + __kernel_size_t ss_size; } stack_t; #endif /* __ASSEMBLY__ */
This is definitely wrong because sizeof(size_t) < sizeof(__kernel_size_t) on x32. I submitted a different fix some time ago, see http://lkml.kernel.org/r/20170303005930.GA10283@altlinux.org and http://lkml.kernel.org/r/20170303005950.GB10283@altlinux.org -- ldv
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