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
>
>
next prev parent reply other threads:[~2020-12-22 3:14 UTC|newest]
Thread overview: 4+ 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 3:13 ` Nicolas Pitre [this message]
2020-12-31 17:42 ` Alexandre Belloni
2021-02-09 3:59 ` Nathan Chancellor
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