From 1f81fbc4ce8211b38881b12a1100ea7ee2ffc5f0 Mon Sep 17 00:00:00 2001 From: Mathieu Malaterre Date: Thu, 12 Apr 2018 21:33:33 +0200 Subject: [PATCH] drm/radeon: change function signature to pass full range MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit In function ‘radeon_process_i2c_ch’ a comparison of a u8 value against 255 is done. Since it is always false, change the signature of this function to use an `int` instead, which match the type used in caller: `radeon_atom_hw_i2c_xfer`. Fix the following warning triggered with W=1: CC [M] drivers/gpu/drm/radeon/atombios_i2c.o drivers/gpu/drm/radeon/atombios_i2c.c: In function ‘radeon_process_i2c_ch’: drivers/gpu/drm/radeon/atombios_i2c.c:71:11: warning: comparison is always false due to limited range of data type [-Wtype-limits] if (num > ATOM_MAX_HW_I2C_READ) { ^ Reviewed-by: Huang Rui Signed-off-by: Mathieu Malaterre Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/atombios_i2c.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/atombios_i2c.c b/drivers/gpu/drm/radeon/atombios_i2c.c index 4157780585a0..9022e9af11a0 100644 --- a/drivers/gpu/drm/radeon/atombios_i2c.c +++ b/drivers/gpu/drm/radeon/atombios_i2c.c @@ -35,7 +35,7 @@ static int radeon_process_i2c_ch(struct radeon_i2c_chan *chan, u8 slave_addr, u8 flags, - u8 *buf, u8 num) + u8 *buf, int num) { struct drm_device *dev = chan->dev; struct radeon_device *rdev = dev->dev_private; -- 2.30.2