linux-kernel - Re: [PATCH] uapi: fix linux/kexec.h userspace compilation errors

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Message-ID: <87h93l3cwl.fsf@xmission.com>
Date:   Thu, 23 Feb 2017 14:37:46 +1300
From:   ebiederm@...ssion.com (Eric W. Biederman)
To:     "Dmitry V. Levin" <ldv@...linux.org>
Cc:     kexec@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] uapi: fix linux/kexec.h userspace compilation errors

"Dmitry V. Levin" <ldv@...linux.org> writes:

> Include <stddef.h> (guarded by #ifndef __KERNEL__) to fix the following
> linux/kexec.h userspace compilation errors:
>
> /usr/include/linux/kexec.h:53:2: error: unknown type name 'size_t'
>   size_t bufsz;
> /usr/include/linux/kexec.h:55:2: error: unknown type name 'size_t'
>   size_t memsz;

Were these failures generated with a static checker?

What changed that you are seeing new failures in old essentially static
headers?

Eric

> Signed-off-by: Dmitry V. Levin <ldv@...linux.org>
> ---
>  include/uapi/linux/kexec.h | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/include/uapi/linux/kexec.h b/include/uapi/linux/kexec.h
> index aae5ebf..7def5f5 100644
> --- a/include/uapi/linux/kexec.h
> +++ b/include/uapi/linux/kexec.h
> @@ -45,6 +45,9 @@
>  #define KEXEC_SEGMENT_MAX 16
>  
>  #ifndef __KERNEL__
> +
> +#include <stddef.h>    /* For size_t. */
> +
>  /*
>   * This structure is used to hold the arguments that are used when
>   * loading  kernel binaries.