From: yu kuai <yuku...@huawei.com>

[ Upstream commit 220ac8d1444054ade07ce14498fcda266410f90e ]

Fixes gcc '-Wtype-limits' warning:

drivers/gpu/drm/amd/amdgpu/atombios_i2c.c: In function
‘amdgpu_atombios_i2c_process_i2c_ch’:
drivers/gpu/drm/amd/amdgpu/atombios_i2c.c:79:11: warning: comparison is
always false due to limited range of data type [-Wtype-limits]

'num' is 'u8', so it will never be greater than 'TOM_MAX_HW_I2C_READ',
which is defined as 255. Therefore, the comparison can be removed.

Fixes: d38ceaf99ed0 ("drm/amdgpu: add core driver (v4)")
Signed-off-by: yu kuai <yuku...@huawei.com>
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/atombios_i2c.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/atombios_i2c.c 
b/drivers/gpu/drm/amd/amdgpu/atombios_i2c.c
index b374653bd6cf3..741bd1e52699b 100644
--- a/drivers/gpu/drm/amd/amdgpu/atombios_i2c.c
+++ b/drivers/gpu/drm/amd/amdgpu/atombios_i2c.c
@@ -69,11 +69,6 @@ static int amdgpu_atombios_i2c_process_i2c_ch(struct 
amdgpu_i2c_chan *chan,
                        memcpy(&out, &buf[1], num);
                args.lpI2CDataOut = cpu_to_le16(out);
        } else {
-               if (num > ATOM_MAX_HW_I2C_READ) {
-                       DRM_ERROR("hw i2c: tried to read too many bytes (%d vs 
255)\n", num);
-                       r = -EINVAL;
-                       goto done;
-               }
                args.ucRegIndex = 0;
                args.lpI2CDataOut = 0;
        }
-- 
2.20.1

_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

Reply via email to