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From: Bjorn Andersson <bjorn.andersson@linaro.org>
To: Robert Foss <robert.foss@linaro.org>
Cc: Andrzej Hajda <a.hajda@samsung.com>,
	Neil Armstrong <narmstrong@baylibre.com>,
	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	Jonas Karlman <jonas@kwiboo.se>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
	dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
	linux-arm-msm@vger.kernel.org, kernel test robot <lkp@intel.com>
Subject: [PATCH] drm/bridge: sn65dsi86: ti_sn65dsi86_read_u16() __maybe_unused
Date: Thu, 28 Oct 2021 09:35:48 -0700	[thread overview]
Message-ID: <20211028163548.273736-1-bjorn.andersson@linaro.org> (raw)

When built without CONFIG_PWM there are no references to
ti_sn65dsi86_read_u16(), avoid the W=1 build warning by marking the
function as __maybe_unused.

__maybe_unused is used insted of a #ifdef guard as it looks slighly
cleaner and it avoids issues if in the future other permutations of the
config options would use the function.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---

Robert, I believe you pushed out the driver patch introducing this issue
yesterday. Can you please add the relevant Fixes?

 drivers/gpu/drm/bridge/ti-sn65dsi86.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
index 430067a3071c..e1f43b73155b 100644
--- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c
+++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
@@ -215,8 +215,8 @@ static const struct regmap_config ti_sn65dsi86_regmap_config = {
 	.cache_type = REGCACHE_NONE,
 };
 
-static int ti_sn65dsi86_read_u16(struct ti_sn65dsi86 *pdata,
-				 unsigned int reg, u16 *val)
+static int __maybe_unused ti_sn65dsi86_read_u16(struct ti_sn65dsi86 *pdata,
+						unsigned int reg, u16 *val)
 {
 	u8 buf[2];
 	int ret;
-- 
2.33.1


             reply	other threads:[~2021-10-28 16:34 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-28 16:35 Bjorn Andersson [this message]
2021-10-28 17:12 ` [PATCH] drm/bridge: sn65dsi86: ti_sn65dsi86_read_u16() __maybe_unused Robert Foss

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