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From: Nick Desaulniers <ndesaulniers@google.com>
To: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Cc: Greg KH <gregkh@linuxfoundation.org>,
	LKML <linux-kernel@vger.kernel.org>,
	adilger.kernel@dilger.ca,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Michal Marek <michal.lkml@markovi.net>,
	rostedt@goodmis.org, mchehab+samsung@kernel.org, olof@lxom.net,
	konstantin@linuxfoundation.org,
	"David S. Miller" <davem@davemloft.net>,
	Andrey Ryabinin <aryabinin@virtuozzo.com>,
	Kees Cook <keescook@chromium.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@kernel.org>,
	Paul Lawrence <paullawrence@google.com>,
	sandipan@linux.vnet.ibm.com,
	Andrey Konovalov <andreyknvl@google.com>,
	David Woodhouse <dwmw2@infradead.org>,
	Will Deacon <will.deacon@arm.com>,
	Philippe Ombredanne <pombredanne@nexb.com>,
	paul.burton@mips.com, David Rientjes <rientjes@google.com>,
	w@1wt.eu, msebor@gmail.com, sparse@chrisli.org,
	Jonathan Corbet <corbet@lwn.net>,
	tytso@mit.edu, Geert Uytterhoeven <geert@linux-m68k.org>,
	Rasmus Villemoes <linux@rasmusvillemoes.dk>,
	joe@perches.com, Arnd Bergmann <arnd@arndb.de>,
	asmadeus@codewreck.org, Stefan Agner <stefan@agner.ch>,
	Luc Van Oostenryck <luc.vanoostenryck@gmail.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	linux-doc@vger.kernel.org, linux-ext4@vger.kernel.org,
	linux-sparse@vger.kernel.org,
	Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>
Subject: Re: [PATCH v5 14/15] Compiler Attributes: auxdisplay: panel: use __nonstring
Date: Thu, 20 Sep 2018 11:11:36 -0700	[thread overview]
Message-ID: <CAKwvOdnSNezyMQuj4bT3HeEM8hp+YSZbUKO_u_C+jd2C0sRJ3g@mail.gmail.com> (raw)
In-Reply-To: <20180920172301.21868-15-miguel.ojeda.sandonis@gmail.com>

On Thu, Sep 20, 2018 at 10:23 AM Miguel Ojeda
<miguel.ojeda.sandonis@gmail.com> wrote:
>
> Let gcc know these arrays are not meant to be NUL-terminated
> by annotating them with the new __nonstring variable attribute;
> and remove the comment since it conveys the same information.
>
> Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
> ---
>  drivers/auxdisplay/panel.c | 7 +++----
>  1 file changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/auxdisplay/panel.c b/drivers/auxdisplay/panel.c
> index 3b25a643058c..21b9b2f2470a 100644
> --- a/drivers/auxdisplay/panel.c
> +++ b/drivers/auxdisplay/panel.c
> @@ -155,10 +155,9 @@ struct logical_input {
>                         int release_data;
>                 } std;
>                 struct {        /* valid when type == INPUT_TYPE_KBD */
> -                       /* strings can be non null-terminated */
> -                       char press_str[sizeof(void *) + sizeof(int)];
> -                       char repeat_str[sizeof(void *) + sizeof(int)];
> -                       char release_str[sizeof(void *) + sizeof(int)];
> +                       char press_str[sizeof(void *) + sizeof(int)] __nonstring;
> +                       char repeat_str[sizeof(void *) + sizeof(int)] __nonstring;
> +                       char release_str[sizeof(void *) + sizeof(int)] __nonstring;
>                 } kbd;
>         } u;
>  };
> --
> 2.17.1
>

Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>

-- 
Thanks,
~Nick Desaulniers

WARNING: multiple messages have this Message-ID (diff)
From: Nick Desaulniers <ndesaulniers@google.com>
To: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Cc: Greg KH <gregkh@linuxfoundation.org>,
	LKML <linux-kernel@vger.kernel.org>,
	adilger.kernel@dilger.ca,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Michal Marek <michal.lkml@markovi.net>,
	rostedt@goodmis.org, mchehab+samsung@kernel.org, olof@lxom.net,
	konstantin@linuxfoundation.org,
	"David S. Miller" <davem@davemloft.net>,
	Andrey Ryabinin <aryabinin@virtuozzo.com>,
	Kees Cook <keescook@chromium.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@kernel.org>,
	Paul Lawrence <paullawrence@google.com>,
	sandipan@linux.vnet.ibm.com,
	Andrey Konovalov <andreyknvl@google.com>,
	David Woodhouse <dwmw2@infradead.org>,
	Will Deacon <will.deacon@arm.com>,
	Philippe Ombredanne <pombredanne@nexb.com>,
	paul.burton@mips.com, David Rientjes <rientjes@google.c
Subject: Re: [PATCH v5 14/15] Compiler Attributes: auxdisplay: panel: use __nonstring
Date: Thu, 20 Sep 2018 11:11:36 -0700	[thread overview]
Message-ID: <CAKwvOdnSNezyMQuj4bT3HeEM8hp+YSZbUKO_u_C+jd2C0sRJ3g@mail.gmail.com> (raw)
In-Reply-To: <20180920172301.21868-15-miguel.ojeda.sandonis@gmail.com>

On Thu, Sep 20, 2018 at 10:23 AM Miguel Ojeda
<miguel.ojeda.sandonis@gmail.com> wrote:
>
> Let gcc know these arrays are not meant to be NUL-terminated
> by annotating them with the new __nonstring variable attribute;
> and remove the comment since it conveys the same information.
>
> Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
> ---
>  drivers/auxdisplay/panel.c | 7 +++----
>  1 file changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/auxdisplay/panel.c b/drivers/auxdisplay/panel.c
> index 3b25a643058c..21b9b2f2470a 100644
> --- a/drivers/auxdisplay/panel.c
> +++ b/drivers/auxdisplay/panel.c
> @@ -155,10 +155,9 @@ struct logical_input {
>                         int release_data;
>                 } std;
>                 struct {        /* valid when type == INPUT_TYPE_KBD */
> -                       /* strings can be non null-terminated */
> -                       char press_str[sizeof(void *) + sizeof(int)];
> -                       char repeat_str[sizeof(void *) + sizeof(int)];
> -                       char release_str[sizeof(void *) + sizeof(int)];
> +                       char press_str[sizeof(void *) + sizeof(int)] __nonstring;
> +                       char repeat_str[sizeof(void *) + sizeof(int)] __nonstring;
> +                       char release_str[sizeof(void *) + sizeof(int)] __nonstring;
>                 } kbd;
>         } u;
>  };
> --
> 2.17.1
>

Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>

-- 
Thanks,
~Nick Desaulniers

WARNING: multiple messages have this Message-ID (diff)
From: Nick Desaulniers <ndesaulniers@google.com>
To: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Cc: Greg KH <gregkh@linuxfoundation.org>,
	LKML <linux-kernel@vger.kernel.org>,
	adilger.kernel@dilger.ca,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Michal Marek <michal.lkml@markovi.net>,
	rostedt@goodmis.org, mchehab+samsung@kernel.org, olof@lxom.net,
	konstantin@linuxfoundation.org,
	"David S. Miller" <davem@davemloft.net>,
	Andrey Ryabinin <aryabinin@virtuozzo.com>,
	Kees Cook <keescook@chromium.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@kernel.org>,
	Paul Lawrence <paullawrence@google.com>,
	sandipan@linux.vnet.ibm.com,
	Andrey Konovalov <andreyknvl@google.com>,
	David Woodhouse <dwmw2@infradead.org>,
	Will Deacon <will.deacon@arm.com>,
	Philippe Ombredanne <pombredanne@nexb.com>,
	paul.burton@mips.com, David Rientjes <rientjes@google.c>
Subject: Re: [PATCH v5 14/15] Compiler Attributes: auxdisplay: panel: use __nonstring
Date: Thu, 20 Sep 2018 11:11:36 -0700	[thread overview]
Message-ID: <CAKwvOdnSNezyMQuj4bT3HeEM8hp+YSZbUKO_u_C+jd2C0sRJ3g@mail.gmail.com> (raw)
In-Reply-To: <20180920172301.21868-15-miguel.ojeda.sandonis@gmail.com>

On Thu, Sep 20, 2018 at 10:23 AM Miguel Ojeda
<miguel.ojeda.sandonis@gmail.com> wrote:
>
> Let gcc know these arrays are not meant to be NUL-terminated
> by annotating them with the new __nonstring variable attribute;
> and remove the comment since it conveys the same information.
>
> Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
> ---
>  drivers/auxdisplay/panel.c | 7 +++----
>  1 file changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/auxdisplay/panel.c b/drivers/auxdisplay/panel.c
> index 3b25a643058c..21b9b2f2470a 100644
> --- a/drivers/auxdisplay/panel.c
> +++ b/drivers/auxdisplay/panel.c
> @@ -155,10 +155,9 @@ struct logical_input {
>                         int release_data;
>                 } std;
>                 struct {        /* valid when type == INPUT_TYPE_KBD */
> -                       /* strings can be non null-terminated */
> -                       char press_str[sizeof(void *) + sizeof(int)];
> -                       char repeat_str[sizeof(void *) + sizeof(int)];
> -                       char release_str[sizeof(void *) + sizeof(int)];
> +                       char press_str[sizeof(void *) + sizeof(int)] __nonstring;
> +                       char repeat_str[sizeof(void *) + sizeof(int)] __nonstring;
> +                       char release_str[sizeof(void *) + sizeof(int)] __nonstring;
>                 } kbd;
>         } u;
>  };
> --
> 2.17.1
>

Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>

-- 
Thanks,
~Nick Desaulniers

  reply	other threads:[~2018-09-20 18:11 UTC|newest]

Thread overview: 77+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-20 17:22 [PATCH v5 00/15] Compiler Attributes Miguel Ojeda
2018-09-20 17:22 ` Miguel Ojeda
2018-09-20 17:22 ` Miguel Ojeda
2018-09-20 17:22 ` [PATCH v5 01/15] Compiler Attributes: remove unused attributes Miguel Ojeda
2018-09-20 17:22   ` Miguel Ojeda
2018-09-20 17:22   ` Miguel Ojeda
2018-09-20 17:22 ` [PATCH v5 02/15] Compiler Attributes: always use the extra-underscores syntax Miguel Ojeda
2018-09-20 17:22   ` Miguel Ojeda
2018-09-20 17:22   ` Miguel Ojeda
2018-09-20 17:22 ` [PATCH v5 03/15] Compiler Attributes: remove unneeded tests Miguel Ojeda
2018-09-20 17:22   ` Miguel Ojeda
2018-09-20 17:22   ` Miguel Ojeda
2018-09-20 17:22 ` [PATCH v5 04/15] Compiler Attributes: homogenize __must_be_array Miguel Ojeda
2018-09-20 17:22   ` Miguel Ojeda
2018-09-20 17:22   ` Miguel Ojeda
2018-09-20 17:22 ` [PATCH v5 05/15] Compiler Attributes: remove unneeded sparse (__CHECKER__) tests Miguel Ojeda
2018-09-20 17:22   ` Miguel Ojeda
2018-09-20 17:22   ` Miguel Ojeda
2018-09-20 17:22 ` [PATCH v5 06/15] Compiler Attributes: add missing SPDX ID in compiler_types.h Miguel Ojeda
2018-09-20 17:22   ` Miguel Ojeda
2018-09-20 17:22   ` Miguel Ojeda
2018-09-20 17:22 ` [PATCH v5 07/15] Compiler Attributes: use feature checks instead of version checks Miguel Ojeda
2018-09-20 17:22   ` Miguel Ojeda
2018-09-20 17:22   ` Miguel Ojeda
2018-09-20 17:22 ` [PATCH v5 08/15] Compiler Attributes: KENTRY used twice the "used" attribute Miguel Ojeda
2018-09-20 17:22   ` Miguel Ojeda
2018-09-20 17:22   ` Miguel Ojeda
2018-09-20 17:22 ` [PATCH v5 09/15] Compiler Attributes: remove uses of __attribute__ from compiler.h Miguel Ojeda
2018-09-20 17:22   ` Miguel Ojeda
2018-09-20 17:22   ` Miguel Ojeda
2018-09-20 17:22 ` [PATCH v5 10/15] Compiler Attributes: add Doc/process/programming-language.rst Miguel Ojeda
2018-09-20 17:22   ` Miguel Ojeda
2018-09-20 17:22   ` Miguel Ojeda
2018-09-20 17:22 ` [PATCH v5 11/15] Compiler Attributes: add MAINTAINERS entry Miguel Ojeda
2018-09-20 17:22   ` Miguel Ojeda
2018-09-20 17:22   ` Miguel Ojeda
2018-09-20 17:22 ` [PATCH v5 12/15] Compiler Attributes: add support for __nonstring (gcc >= 8) Miguel Ojeda
2018-09-20 17:22   ` Miguel Ojeda
2018-09-20 17:22   ` Miguel Ojeda
2018-09-20 18:07   ` Nick Desaulniers
2018-09-20 18:07     ` Nick Desaulniers
2018-09-20 18:07     ` Nick Desaulniers
2018-09-20 20:08   ` Kees Cook
2018-09-20 20:08     ` Kees Cook
2018-09-20 20:08     ` Kees Cook
2018-09-30 11:16     ` Miguel Ojeda
2018-09-30 11:16       ` Miguel Ojeda
2018-09-20 17:22 ` [PATCH v5 13/15] Compiler Attributes: enable -Wstringop-truncation on W=1 " Miguel Ojeda
2018-09-20 17:22   ` Miguel Ojeda
2018-09-20 17:22   ` Miguel Ojeda
2018-09-20 18:16   ` Nick Desaulniers
2018-09-20 18:16     ` Nick Desaulniers
2018-09-20 18:16     ` Nick Desaulniers
2018-09-20 19:52   ` Kees Cook
2018-09-20 19:52     ` Kees Cook
2018-09-20 19:52     ` Kees Cook
2018-09-30 11:17     ` Miguel Ojeda
2018-09-30 11:17       ` Miguel Ojeda
2018-09-20 17:23 ` [PATCH v5 14/15] Compiler Attributes: auxdisplay: panel: use __nonstring Miguel Ojeda
2018-09-20 17:23   ` Miguel Ojeda
2018-09-20 17:23   ` Miguel Ojeda
2018-09-20 18:11   ` Nick Desaulniers [this message]
2018-09-20 18:11     ` Nick Desaulniers
2018-09-20 18:11     ` Nick Desaulniers
2018-09-20 17:23 ` [PATCH v5 15/15] Compiler Attributes: ext4: remove local __nonstring definition Miguel Ojeda
2018-09-20 17:23   ` Miguel Ojeda
2018-09-20 17:23   ` Miguel Ojeda
2018-09-20 18:13   ` Nick Desaulniers
2018-09-20 18:13     ` Nick Desaulniers
2018-09-20 18:13     ` Nick Desaulniers
2018-09-20 18:18 ` [PATCH v5 00/15] Compiler Attributes Nick Desaulniers
2018-09-20 18:18   ` Nick Desaulniers
2018-09-20 18:18   ` Nick Desaulniers
2018-09-24 14:36 ` Luc Van Oostenryck
2018-09-24 14:36   ` Luc Van Oostenryck
2018-09-30 11:13   ` Miguel Ojeda
2018-09-30 11:13     ` Miguel Ojeda

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