linux-kernel - [PATCH linux-next] drm/i915/display: Remove unused variable and corresponding assignment

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <20211018084140.851583-1-luo.penghao@zte.com.cn>
Date:   Mon, 18 Oct 2021 08:41:40 +0000
From:   luo penghao <cgel.zte@...il.com>
To:     Jani Nikula <jani.nikula@...ux.intel.com>
Cc:     Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, luo penghao <luo.penghao@....com.cn>,
        Zeal Robot <zealci@....com.cn>
Subject: [PATCH linux-next] drm/i915/display: Remove unused variable and corresponding assignment

Variable is not used in functions, and its assignment is redundant too.
So it should be deleted.

The clang_analyzer complains as follows:

drivers/gpu/drm/i915/display/vlv_dsi.c:143:2 warning:

Value stored to 'data' is never read.

Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: luo penghao <luo.penghao@....com.cn>
---
 drivers/gpu/drm/i915/display/vlv_dsi.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/vlv_dsi.c b/drivers/gpu/drm/i915/display/vlv_dsi.c
index 081b772..634de91 100644
--- a/drivers/gpu/drm/i915/display/vlv_dsi.c
+++ b/drivers/gpu/drm/i915/display/vlv_dsi.c
@@ -131,7 +131,7 @@ static ssize_t intel_dsi_host_transfer(struct mipi_dsi_host *host,
 	enum port port = intel_dsi_host->port;
 	struct mipi_dsi_packet packet;
 	ssize_t ret;
-	const u8 *header, *data;
+	const u8 *header;
 	i915_reg_t data_reg, ctrl_reg;
 	u32 data_mask, ctrl_mask;
 
@@ -140,7 +140,6 @@ static ssize_t intel_dsi_host_transfer(struct mipi_dsi_host *host,
 		return ret;
 
 	header = packet.header;
-	data = packet.payload;
 
 	if (msg->flags & MIPI_DSI_MSG_USE_LPM) {
 		data_reg = MIPI_LP_GEN_DATA(port);
-- 
2.15.2