linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Nathan Chancellor <natechancellor@gmail.com>
To: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
	clang-built-linux@googlegroups.com,
	Nathan Chancellor <natechancellor@gmail.com>,
	Nick Desaulniers <ndesaulniers@google.com>
Subject: [PATCH] drm/omap: Remove aggregate initialization of new_mode in omap_connector_mode_valid
Date: Mon, 22 Jun 2020 18:36:10 -0700	[thread overview]
Message-ID: <20200623013610.555610-1-natechancellor@gmail.com> (raw)

After commit 42acb06b01b1 ("drm: pahole struct drm_display_mode"), clang
warns:

drivers/gpu/drm/omapdrm/omap_connector.c:92:39: warning: braces around
scalar initializer [-Wbraced-scalar-init]
        struct drm_display_mode new_mode = { { 0 } };
                                             ^~~~~~
1 warning generated.

After the struct was shuffled, the second set of braces is no longer
needed because we are not initializing a structure (struct list_head)
but a regular integer (int clock).

However, looking into it further, this initialization is pointless
because new_mode is used as the destination of drm_mode_copy, where the
members of new_mode will just be completely overwritten with the members
of mode. Just remove the initialization of new_mode so that there is no
more warning and we don't need to worry about updating the
initialization if the structure ever get shuffled again.

Link: https://github.com/ClangBuiltLinux/linux/issues/1059
Suggested-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
---
 drivers/gpu/drm/omapdrm/omap_connector.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/omapdrm/omap_connector.c b/drivers/gpu/drm/omapdrm/omap_connector.c
index 528764566b17..ce4da1511920 100644
--- a/drivers/gpu/drm/omapdrm/omap_connector.c
+++ b/drivers/gpu/drm/omapdrm/omap_connector.c
@@ -89,7 +89,7 @@ static enum drm_mode_status omap_connector_mode_valid(struct drm_connector *conn
 				 struct drm_display_mode *mode)
 {
 	struct omap_connector *omap_connector = to_omap_connector(connector);
-	struct drm_display_mode new_mode = { { 0 } };
+	struct drm_display_mode new_mode;
 	enum drm_mode_status status;
 
 	status = omap_connector_mode_fixup(omap_connector->output, mode,

base-commit: 27f11fea33608cbd321a97cbecfa2ef97dcc1821
-- 
2.27.0


                 reply	other threads:[~2020-06-23  1:36 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

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=20200623013610.555610-1-natechancellor@gmail.com \
    --to=natechancellor@gmail.com \
    --cc=clang-built-linux@googlegroups.com \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=ndesaulniers@google.com \
    --cc=tomi.valkeinen@ti.com \
    --subject='Re: [PATCH] drm/omap: Remove aggregate initialization of new_mode in omap_connector_mode_valid' \
    /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

This is a public inbox, see mirroring instructions
on how to clone and mirror all data and code used for this inbox