diff options
| author | Pan Zhang <zhangpan26@huawei.com> | 2019-12-18 11:50:08 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-12-18 16:09:13 -0500 |
| commit | d012ea925d6110f2bd4a9b398f87ef1a76c649c5 (patch) | |
| tree | 841ff74142f3c44d007ba3dfcf354e69b100b59f /drivers/gpu/drm/radeon/atombios_i2c.c | |
| parent | 719423f670796bb5d2e2894176033a493f684d8b (diff) | |
| download | linux-d012ea925d6110f2bd4a9b398f87ef1a76c649c5.tar.bz2 | |
gpu: drm: dead code elimination
this set adds support for removal of gpu drm dead code.
patch3 is similar with patch 1:
`num` is a data of u8 type and ATOM_MAX_HW_I2C_READ == 255,
so there is a impossible condition '(num > 255) => (0-255 > 255)'.
Signed-off-by: Pan Zhang <zhangpan26@huawei.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/atombios_i2c.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/atombios_i2c.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_i2c.c b/drivers/gpu/drm/radeon/atombios_i2c.c index a570ce40af19..ab4d21072191 100644 --- a/drivers/gpu/drm/radeon/atombios_i2c.c +++ b/drivers/gpu/drm/radeon/atombios_i2c.c @@ -68,11 +68,6 @@ static int radeon_process_i2c_ch(struct radeon_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; } |