All of lore.kernel.org
 help / color / mirror / Atom feed
From: Nicolas Pitre <npitre@baylibre.com>
To: Nathan Chancellor <natechancellor@gmail.com>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>,
	Nick Desaulniers <ndesaulniers@google.com>,
	linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org,
	clang-built-linux@googlegroups.com
Subject: Re: [PATCH] i3c/master/mipi-i3c-hci: Fix position of __maybe_unused in i3c_hci_of_match
Date: Mon, 21 Dec 2020 22:13:02 -0500 (EST)	[thread overview]
Message-ID: <4q7rono-ssrr-r53-2796-o6924496p0qo@onlyvoer.pbz> (raw)
In-Reply-To: <20201222025931.3043480-1-natechancellor@gmail.com>

On Mon, 21 Dec 2020, Nathan Chancellor wrote:

> Clang warns:
> 
>  ../drivers/i3c/master/mipi-i3c-hci/core.c:780:21: warning: attribute
>  declaration must precede definition [-Wignored-attributes]
>  static const struct __maybe_unused of_device_id i3c_hci_of_match[] = {
>                      ^
>  ../include/linux/compiler_attributes.h:267:56: note: expanded from macro
>  '__maybe_unused'
>  #define __maybe_unused                  __attribute__((__unused__))
>                                                         ^
>  ../include/linux/mod_devicetable.h:262:8: note: previous definition is
>  here
>  struct of_device_id {
>         ^
> 1 warning generated.
> 
> 'struct of_device_id' should not be split, as it is a type. Move the
> __maybe_unused attribute after the static and const qualifiers so that
> there are no warnings about this variable, period.
> 
> Fixes: 95393f3e07ab ("i3c/master/mipi-i3c-hci: quiet maybe-unused variable warning")
> Link: https://github.com/ClangBuiltLinux/linux/issues/1221
> Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>

Acked-by: Nicolas Pitre <npitre@baylibre.com>

> ---
>  drivers/i3c/master/mipi-i3c-hci/core.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/i3c/master/mipi-i3c-hci/core.c b/drivers/i3c/master/mipi-i3c-hci/core.c
> index 500abd27fb22..1b73647cc3b1 100644
> --- a/drivers/i3c/master/mipi-i3c-hci/core.c
> +++ b/drivers/i3c/master/mipi-i3c-hci/core.c
> @@ -777,7 +777,7 @@ static int i3c_hci_remove(struct platform_device *pdev)
>  	return 0;
>  }
>  
> -static const struct __maybe_unused of_device_id i3c_hci_of_match[] = {
> +static const __maybe_unused struct of_device_id i3c_hci_of_match[] = {
>  	{ .compatible = "mipi-i3c-hci", },
>  	{},
>  };
> 
> base-commit: 95393f3e07ab53855b91881692a4a5b52dcdc03c
> -- 
> 2.30.0.rc1
> 
> 

WARNING: multiple messages have this Message-ID (diff)
From: Nicolas Pitre <npitre@baylibre.com>
To: Nathan Chancellor <natechancellor@gmail.com>
Cc: clang-built-linux@googlegroups.com,
	Alexandre Belloni <alexandre.belloni@bootlin.com>,
	Nick Desaulniers <ndesaulniers@google.com>,
	linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] i3c/master/mipi-i3c-hci: Fix position of __maybe_unused in i3c_hci_of_match
Date: Mon, 21 Dec 2020 22:13:02 -0500 (EST)	[thread overview]
Message-ID: <4q7rono-ssrr-r53-2796-o6924496p0qo@onlyvoer.pbz> (raw)
In-Reply-To: <20201222025931.3043480-1-natechancellor@gmail.com>

On Mon, 21 Dec 2020, Nathan Chancellor wrote:

> Clang warns:
> 
>  ../drivers/i3c/master/mipi-i3c-hci/core.c:780:21: warning: attribute
>  declaration must precede definition [-Wignored-attributes]
>  static const struct __maybe_unused of_device_id i3c_hci_of_match[] = {
>                      ^
>  ../include/linux/compiler_attributes.h:267:56: note: expanded from macro
>  '__maybe_unused'
>  #define __maybe_unused                  __attribute__((__unused__))
>                                                         ^
>  ../include/linux/mod_devicetable.h:262:8: note: previous definition is
>  here
>  struct of_device_id {
>         ^
> 1 warning generated.
> 
> 'struct of_device_id' should not be split, as it is a type. Move the
> __maybe_unused attribute after the static and const qualifiers so that
> there are no warnings about this variable, period.
> 
> Fixes: 95393f3e07ab ("i3c/master/mipi-i3c-hci: quiet maybe-unused variable warning")
> Link: https://github.com/ClangBuiltLinux/linux/issues/1221
> Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>

Acked-by: Nicolas Pitre <npitre@baylibre.com>

> ---
>  drivers/i3c/master/mipi-i3c-hci/core.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/i3c/master/mipi-i3c-hci/core.c b/drivers/i3c/master/mipi-i3c-hci/core.c
> index 500abd27fb22..1b73647cc3b1 100644
> --- a/drivers/i3c/master/mipi-i3c-hci/core.c
> +++ b/drivers/i3c/master/mipi-i3c-hci/core.c
> @@ -777,7 +777,7 @@ static int i3c_hci_remove(struct platform_device *pdev)
>  	return 0;
>  }
>  
> -static const struct __maybe_unused of_device_id i3c_hci_of_match[] = {
> +static const __maybe_unused struct of_device_id i3c_hci_of_match[] = {
>  	{ .compatible = "mipi-i3c-hci", },
>  	{},
>  };
> 
> base-commit: 95393f3e07ab53855b91881692a4a5b52dcdc03c
> -- 
> 2.30.0.rc1
> 
> 

-- 
linux-i3c mailing list
linux-i3c@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-i3c

  reply	other threads:[~2020-12-22  3:14 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-22  2:59 [PATCH] i3c/master/mipi-i3c-hci: Fix position of __maybe_unused in i3c_hci_of_match Nathan Chancellor
2020-12-22  2:59 ` Nathan Chancellor
2020-12-22  3:13 ` Nicolas Pitre [this message]
2020-12-22  3:13   ` Nicolas Pitre
2020-12-31 17:42 ` Alexandre Belloni
2020-12-31 17:42   ` Alexandre Belloni
2021-02-09  3:59   ` Nathan Chancellor
2021-02-09  3:59     ` Nathan Chancellor

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=4q7rono-ssrr-r53-2796-o6924496p0qo@onlyvoer.pbz \
    --to=npitre@baylibre.com \
    --cc=alexandre.belloni@bootlin.com \
    --cc=clang-built-linux@googlegroups.com \
    --cc=linux-i3c@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=natechancellor@gmail.com \
    --cc=ndesaulniers@google.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.