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(108-214-96-168.lightspeed.sntcca.sbcglobal.net. [108.214.96.168]) by smtp.gmail.com with ESMTPSA id 00721157ae682-7905a24322bsm47425747b3.32.2026.01.04.18.10.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 04 Jan 2026 18:10:36 -0800 (PST) From: Sun Jian To: linux-staging@lists.linux.dev Cc: sudipm.mukherjee@gmail.com, teddy.wang@siliconmotion.com, gregkh@linuxfoundation.org, linux-fbdev@vger.kernel.org, Sun Jian Subject: [PATCH] staging: sm750fb: fix unused tmp in sw_i2c_wait Date: Mon, 5 Jan 2026 10:10:26 +0800 Message-ID: <20260105021026.556244-1-sun.jian.kdev@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-fbdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit clang W=1 warns that 'tmp' is set but not used in sw_i2c_wait(). Replace the dummy loop with cpu_relax() to keep the delay loop without triggering -Wunused-but-set-variable. No functional change intended. Signed-off-by: Sun Jian --- drivers/staging/sm750fb/ddk750_swi2c.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/staging/sm750fb/ddk750_swi2c.c b/drivers/staging/sm750fb/ddk750_swi2c.c index 0ef8d4ff2ef9..279a1a10f132 100644 --- a/drivers/staging/sm750fb/ddk750_swi2c.c +++ b/drivers/staging/sm750fb/ddk750_swi2c.c @@ -92,12 +92,11 @@ static void sw_i2c_wait(void) * it's more reliable than counter loop .. * write 0x61 to 0x3ce and read from 0x3cf */ - int i, tmp; + int i; + + for (i = 0; i < 600; i++) + cpu_relax(); - for (i = 0; i < 600; i++) { - tmp = i; - tmp += i; - } } /* -- 2.43.0