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[PATCH v06 21/36] uapi linux/kexec.h: use __kernel_size_t instead of size_t

Started byMikko Rapeli <mikko.rapeli@iki.fi>
First post2017-08-06 19:10 +0200
Last post2017-08-09 01:20 +0200
Articles 3 — 3 participants

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  [PATCH v06 21/36] uapi linux/kexec.h: use __kernel_size_t instead of size_t Mikko Rapeli <mikko.rapeli@iki.fi> - 2017-08-06 19:10 +0200
    Re: [PATCH v06 21/36] uapi linux/kexec.h: use __kernel_size_t instead  of size_t Arnd Bergmann <arnd@arndb.de> - 2017-08-07 17:20 +0200
    Re: [PATCH v06 21/36] uapi linux/kexec.h: use __kernel_size_t  instead of size_t "Dmitry V. Levin" <ldv@altlinux.org> - 2017-08-09 01:20 +0200

#1704897 — [PATCH v06 21/36] uapi linux/kexec.h: use __kernel_size_t instead of size_t

FromMikko Rapeli <mikko.rapeli@iki.fi>
Date2017-08-06 19:10 +0200
Subject[PATCH v06 21/36] uapi linux/kexec.h: use __kernel_size_t instead of size_t
Message-ID<ubxdV-50T-51@gated-at.bofh.it>
Fixes userspace compilation error:

error: unknown type name ‘size_t’
  size_t bufsz;

Signed-off-by: Mikko Rapeli <mikko.rapeli@iki.fi>
Cc: kexec@lists.infradead.org
Cc: Eric Biederman <ebiederm@xmission.com>
---
 include/uapi/linux/kexec.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/uapi/linux/kexec.h b/include/uapi/linux/kexec.h
index aae5ebf2022b..f964d83b2757 100644
--- a/include/uapi/linux/kexec.h
+++ b/include/uapi/linux/kexec.h
@@ -51,9 +51,9 @@
  */
 struct kexec_segment {
 	const void *buf;
-	size_t bufsz;
+	__kernel_size_t bufsz;
 	const void *mem;
-	size_t memsz;
+	__kernel_size_t memsz;
 };
 
 #endif /* __KERNEL__ */
-- 
2.13.3

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#1705626 — Re: [PATCH v06 21/36] uapi linux/kexec.h: use __kernel_size_t instead of size_t

FromArnd Bergmann <arnd@arndb.de>
Date2017-08-07 17:20 +0200
SubjectRe: [PATCH v06 21/36] uapi linux/kexec.h: use __kernel_size_t instead of size_t
Message-ID<ubRYZ-1OG-21@gated-at.bofh.it>
In reply to#1704897
On Sun, Aug 6, 2017 at 6:44 PM, Mikko Rapeli <mikko.rapeli@iki.fi> wrote:
> Fixes userspace compilation error:
>
> error: unknown type name ‘size_t’
>   size_t bufsz;
>
> Signed-off-by: Mikko Rapeli <mikko.rapeli@iki.fi>
> Cc: kexec@lists.infradead.org
> Cc: Eric Biederman <ebiederm@xmission.com>

Acked-by: Arnd Bergmann <arnd@arndb.de>

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#1706950 — Re: [PATCH v06 21/36] uapi linux/kexec.h: use __kernel_size_t instead of size_t

From"Dmitry V. Levin" <ldv@altlinux.org>
Date2017-08-09 01:20 +0200
SubjectRe: [PATCH v06 21/36] uapi linux/kexec.h: use __kernel_size_t instead of size_t
Message-ID<uclX4-70m-17@gated-at.bofh.it>
In reply to#1704897

[Multipart message — attachments visible in raw view] — view raw

On Sun, Aug 06, 2017 at 06:44:12PM +0200, Mikko Rapeli wrote:
> Fixes userspace compilation error:
> 
> error: unknown type name ‘size_t’
>   size_t bufsz;
> 
> Signed-off-by: Mikko Rapeli <mikko.rapeli@iki.fi>
> Cc: kexec@lists.infradead.org
> Cc: Eric Biederman <ebiederm@xmission.com>
> ---
>  include/uapi/linux/kexec.h | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/include/uapi/linux/kexec.h b/include/uapi/linux/kexec.h
> index aae5ebf2022b..f964d83b2757 100644
> --- a/include/uapi/linux/kexec.h
> +++ b/include/uapi/linux/kexec.h
> @@ -51,9 +51,9 @@
>   */
>  struct kexec_segment {
>  	const void *buf;
> -	size_t bufsz;
> +	__kernel_size_t bufsz;
>  	const void *mem;
> -	size_t memsz;
> +	__kernel_size_t memsz;

No, this is definitely wrong as it breaks x32.
I submitted an alternative fix some time ago, see
http://lkml.kernel.org/r/20170222224646.GC14311@altlinux.org


-- 
ldv

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