diff options
author | Andre Heider <a.heider@gmail.com> | 2013-07-17 14:02:23 -0400 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2013-07-17 14:52:49 -0400 |
commit | 48fa04c3fcdb4f6ac041976bedaf19ca5bee20c0 (patch) | |
tree | 18ec36d9e60ba283709cd5c758358127db13eb48 | |
parent | 77c7d50a4a9f1fa3aa42adad00e7b44aa70ec910 (diff) |
drm/radeon/dpm/atom: restructure logic to work around a compiler bug
It seems gcc 4.8.1 generates bogus code for the old logic causing
part of the function to get skipped.
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=66932
https://bugs.freedesktop.org/show_bug.cgi?id=66972
https://bugs.freedesktop.org/show_bug.cgi?id=66945
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_atombios.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index a2e324188bc9..2606ec680ae3 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c | |||
@@ -3703,8 +3703,9 @@ int radeon_atom_init_mc_reg_table(struct radeon_device *rdev, | |||
3703 | sizeof(ATOM_INIT_REG_INDEX_FORMAT)) - 1; | 3703 | sizeof(ATOM_INIT_REG_INDEX_FORMAT)) - 1; |
3704 | if (num_entries > VBIOS_MC_REGISTER_ARRAY_SIZE) | 3704 | if (num_entries > VBIOS_MC_REGISTER_ARRAY_SIZE) |
3705 | return -EINVAL; | 3705 | return -EINVAL; |
3706 | while (!(reg_block->asRegIndexBuf[i].ucPreRegDataLength & ACCESS_PLACEHOLDER) && | 3706 | while (i < num_entries) { |
3707 | (i < num_entries)) { | 3707 | if (reg_block->asRegIndexBuf[i].ucPreRegDataLength & ACCESS_PLACEHOLDER) |
3708 | break; | ||
3708 | reg_table->mc_reg_address[i].s1 = | 3709 | reg_table->mc_reg_address[i].s1 = |
3709 | (u16)(le16_to_cpu(reg_block->asRegIndexBuf[i].usRegIndex)); | 3710 | (u16)(le16_to_cpu(reg_block->asRegIndexBuf[i].usRegIndex)); |
3710 | reg_table->mc_reg_address[i].pre_reg_data = | 3711 | reg_table->mc_reg_address[i].pre_reg_data = |