This patch fix cocci warning:
drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c:1816:6-8:
WARNING: possible condition with no effect (if == else).
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c | 2 --
1 file changed, 2 deletions(-)
diff --git a
This patch trf to fis cocci warning:
drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c:
2349:8-34: duplicated argument to && or ||
drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c:
3680:8-55: duplicated argument to && or ||
Signed-off-by: Bernard Zhao
This patch fix potential memory leak (clk_src) when function run
into last return NULL.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c
b/drivers
This patch trf to fis cocci warning:
drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c:
2349:8-34: duplicated argument to && or ||
drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_32.c:
3680:8-55: duplicated argument to && or ||
Signed-off-by: Bernard Zhao
This patch fix potential memory leak (clk_src) when function run
into last return NULL.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c
b/drivers
This patch fix cocci warning:
drivers/gpu/drm/amd/display/dc/core/dc.c:3335:2-4: WARNING:
possible condition with no effect (if == else).
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/display/dc/core/dc.c | 9 ++---
1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/drivers
This change is to cleanup the code a bit.
Signed-off-by: Bernard Zhao
---
.../drm/amd/display/dc/dcn10/dcn10_resource.c | 18 ++
1 file changed, 6 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
b/drivers/gpu/drm/amd/display
In function dc_sink_destruct, kfree will check pointer, no need
to check again.
This change is to cleanup the code a bit.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/display/dc/core/dc_sink.c | 10 +-
1 file changed, 1 insertion(+), 9 deletions(-)
diff --git a/drivers/gpu/drm
This change is to cleanup the code style a bit.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 21 +
1 file changed, 13 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
b/drivers/gpu/drm/amd/amdgpu
This change is to remove useless break after return.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/amdgpu/dce_v8_0.c | 4
1 file changed, 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
b/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
index b200b9e722d9..8318ee8339f1
This change is to cleanup the code style a bit.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 10 ++
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
index
In function amdgpu_get_xgmi_hive, when kobject_init_and_add failed
There is a potential memleak if not call kobject_put.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
b
: Bernard Zhao
---
drivers/gpu/drm/radeon/cik.c | 4 +---
drivers/gpu/drm/radeon/evergreen.c| 4 +---
drivers/gpu/drm/radeon/ni.c | 4 +---
drivers/gpu/drm/radeon/r100.c | 4 +---
drivers/gpu/drm/radeon/r300.c | 4 +---
drivers/gpu/drm/radeon/r420.c | 5
Function radeon_fence_driver_init always returns success,
remove meaningless if(r) check code.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/radeon/r100.c | 4 +---
drivers/gpu/drm/radeon/r300.c | 4 +---
drivers/gpu/drm/radeon/r420.c | 5 +
drivers/gpu/drm/radeon/r520.c | 4 +---
drivers
-off-by: Bernard Zhao
Bernard Zhao (4):
drm/radeon: remove meaningless if(r) check code
drm/radeon: remove meaningless if(r) check code
drm/radeon: remove meaningless if(r) check code
drm/radeon: delete useless return values
drivers/gpu/drm/radeon/cik.c | 4 +---
drivers/gpu/drm
Function radeon_fence_driver_init always returns success,
remove meaningless if(r) check code.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/radeon/cik.c | 4 +---
drivers/gpu/drm/radeon/evergreen.c | 4 +---
drivers/gpu/drm/radeon/ni.c| 4 +---
drivers/gpu/drm/radeon/si.c
Function radeon_fence_driver_init always returns success,
remove meaningless if(r) check code.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/radeon/rs400.c | 4 +---
drivers/gpu/drm/radeon/rs600.c | 4 +---
drivers/gpu/drm/radeon/rs690.c | 4 +---
drivers/gpu/drm/radeon/rv515.c | 4
Function radeon_fence_driver_init always returns success,
the function type maybe coule be changed to void.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/radeon/radeon.h | 2 +-
drivers/gpu/drm/radeon/radeon_fence.c | 5 +
2 files changed, 2 insertions(+), 5 deletions(-)
diff --git
remove no need variable, just return the DC_OK
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
b/drivers/gpu/drm/amd/display/dc
Fix coccicheck warning:
drivers/gpu/drm/amd/amdgpu/mmhub_v2_3.c:573:39-44: WARNING: conversion to bool
not needed here
drivers/gpu/drm/amd/amdgpu/mmhub_v2_3.c:575:39-44: WARNING: conversion to bool
not needed here
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/amdgpu/mmhub_v2_3.c | 4
ocks
+ if (obj && obj->use < 0) {
+DRM_ERROR("RAS ERROR: Unbalance obj(%s) use\n",
obj->head.name);
+ }
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 7 +++
1 file changed, 3 insertions(+), 4 deletions(-)
d
- consider code refactoring
+ if (vbios_voltage_id <=
leakage_bin[j]) {
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c | 84
1 file changed, 35 insertions(+), 49 deletions(-)
diff --git
Fix patch check warning:
WARNING: Prefer kmalloc_array over kmalloc with multiply
+ buf = kmalloc(MAX_KFIFO_SIZE * sizeof(*buf), GFP_KERNEL);
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/amdkfd/kfd_smi_events.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a
Remove unneeded variable: "pattern".
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
b/drivers/gpu/drm/amd/display/dc/core/dc_link_
Optimise CONFIG_ || CONFIG__MODULE to IS_ENABLED().
This change also fix check_patch.pl warning:
WARNING: Prefer IS_ENABLED() to CONFIG_ ||
CONFIG__MODULE
+#if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) || defined
(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE)
Signed-off-by: Bernard Zhao
---
drivers/gpu
ay has multiply overflow check, which will be safer.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
index d0aea5
Fix check_patch.pl warning:
kmalloc_array uses number as first arg, sizeof is generally wrong.
+fences = kmalloc_array(sizeof(void *), id_mgr->num_ids,
GFP_KERNEL);
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c | 2 +-
1 file changed, 1 insertion(+), 1 delet
In function amdgpu_dm_connector_get_modes, drm_edid_is_valid
will check weather (!edid), no need to check again in the if
branch.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm
Fix typoes.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c
b/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c
index 2c6db379afae..e994d233aa21
In function amdgpu_register_gpu_instance, there is no need to
protect DRM_ERROR in mutex mgpu_info.mutex.
This change is to make the code to run a bit fast.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git
In functions vegam_is_dpm_running & vegam_populate_avfs_parameters,
maybe there is no need to conver bool condition to bool variable
or bool return value.
This change is to make the code a bit more readable.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/powerplay/smumgr/vegam_smumgr.c
Functions (disable_all_writeback_pipes_for_stream &
dc_enable_stereo & dc_post_update_surfaces_to_stream)
always return true, there is no need to keep the return value.
This change is to make the code a bit more readable.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/display/dc/c
Functions (disable_all_writeback_pipes_for_stream &
dc_enable_stereo & dc_post_update_surfaces_to_stream)
always return true, there is no need to keep the return value.
This change is to make the code a bit more readable.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/display/dc/c
Change the comment typo: "programm" -> "program".
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/radeon/uvd_v1_0.c | 4 ++--
drivers/gpu/drm/radeon/uvd_v2_2.c | 2 +-
drivers/gpu/drm/radeon/uvd_v4_2.c | 2 +-
3 files changed, 4 insertions(+), 4 deletions(-)
diff --git a
Change the comment typo: "programm" -> "program".
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 2 +-
drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c | 4 ++--
drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c | 4 ++--
drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c | 4 ++
In the function dal_ddc_service_query_ddc_data,
get rid of dal_ddc_i2c_payloads_destroy, call
dal_vector_destruct() directly.
This change is to make the code run a bit fast.
Signed-off-by: Bernard Zhao
Changes since V1:
*get rid of dal_ddc_i2c_payloads_destroy, call
dal_vector_destruct
Static function dal_ddc_i2c_payloads_destroy is only called
in dal_ddc_service_query_ddc_data, the parameter is &payloads
, there is no point NULL risk, so no need to check.
This change is to make the code run a bit fast.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/display/dc/
In fnction is_cr_done & is_ch_eq_done, when done = false
happened once, no need to circle left ln_count.
This change is to make the code run a bit fast.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 14 +-
1 file changed, 5 insertions(+
These changes are to add kobject_put in kobject_init_and_add
failed branch, fix potential memleak.
Signed-off-by: Bernard Zhao
---
Changes since V2:
*remove duplicate kobject_put in kfd_procfs_init.
Link for V1:
*https://lore.kernel.org/patchwork/patch/1258608/
---
drivers/gpu/drm/amd/amdkfd/k
These changes are to add kobject_put in kobject_init_and_add
failed branch, fix potential memleak.
Signed-off-by: Bernard Zhao
---
Changes since V1:
*Remove duplicate changed file kfd_topology.c, this file`s fix
already applied to the main line.
---
drivers/gpu/drm/amd/amdkfd/kfd_process.c | 2
These changes are to add kobject_put in kobject_init_and_add
failed branch, fix potential memleak.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/amdkfd/kfd_process.c | 2 ++
drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 20 +++-
2 files changed, 17 insertions(+), 5 delet
In function fill_iram_v_2, the ram_table->bright_neg_gain`s
first element [0][0] seems to be missing. This change is just
to make the code a bit readable.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/display/modules/power/power_helpers.c | 1 +
1 file changed, 1 insertion(+)
diff --
In function is_support_sw_smu, remove unnecessary conversion
to bool return, this change is to make the code a bit readable.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd
There is DEVICE_ATTR mechanism in separate attribute define.
So this change is to use attr array, also use
sysfs_create_files in init function & sysfs_remove_files in
fini function.
This maybe make the code a bit readable.
Signed-off-by: Bernard Zhao
Changes since V1:
*Use DEVICE_ATTR mecha
Maybe no need to check ws before kmalloc, kmalloc will check
itself, kmalloc`s logic is if ptr is NULL, kmalloc will just
return
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/radeon/atom.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/radeon/atom.c b
Make the code a bit more readable by using a common
error handling pattern.
With that done the patch is Reviewed-by: Christian König
.
Signed-off-by: Bernard Zhao
Changes since V1:
*commit message improve
*code style refactoring
Changes since V2:
*code style adjust
Changes since V3:
*find the
Maybe we could reduce the mutex_lock(&mem->lock)`s protected code area,
and no need to protect pr_debug.
Signed-off-by: Bernard Zhao
Changes since V1:
*commit message improve
Changes since V2:
*move comment along with the mutex_unlock
Changes since V3:
*lock protect the if check, t
There is no need to if check again, maybe we could merge
into the above else branch.
Signed-off-by: Bernard Zhao
Changes since V1:
*commit message improve
*code style refactoring
Changes since V2:
*code style adjust
Changes since V3:
*find the best way to merge unnecessary if/else check
There is no need to if check again, maybe we could merge
into the above else branch.
Signed-off-by: Bernard Zhao
Changes since V1:
*commit message improve
*code style refactoring
Changes since V2:
*code style adjust
Link for V1:
*https://lore.kernel.org/patchwork/patch/1226587/
---
.../gpu
VRAM manager and DRM MM when init failed, there is no operaction
to free kzalloc memory & remove device file.
This will lead to memleak & cause stability issue.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c | 24
1 file changed, 19 in
Maybe we could reduce the mutex_lock(&mem->lock)`s protected code area,
and noneed to protect pr_debug.
Signed-off-by: Bernard Zhao
Changes since V1:
*commit message improve
Link for V1:
*https://lore.kernel.org/patchwork/patch/1226588/
---
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuv
The "if(!encoder)" branch return the same value 0 of the success
branch, maybe return -EINVAL is more better.
Signed-off-by: Bernard Zhao
---
Changes since V1:
* commit message improve
---
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c | 14 +++---
1 file changed, 7 insert
There is no need to if check again, maybe we could merge
into the above else branch.
Signed-off-by: Bernard Zhao
---
Changes since V1:
*commit message improve
*code style refactoring
Link for V1:
* https://lore.kernel.org/patchwork/patch/1226587/
---
drivers/gpu/drm/amd/amdgpu
Maybe we could reduce the mutex_lock(&mem->lock)`s protected code area,
and no need to protect pr_debug.
Signed-off-by: Bernard Zhao
Changes since V1:
*commit message improve
Changes since V2:
*move comment along with the mutex_unlock
Link for V1:
*https://lore.kernel.org/patchwor
kvfree ensure that the null pointer will do nothing.
If addr is NULL, first is_vmalloc_addr will not enter,
and kfree function just return when addr is NULL. There
will be no risk here.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 3 +--
1 file changed, 1 insertion
kvfree ensure that the null pointer will do nothing.
If addr is NULL, first is_vmalloc_addr will not enter,
and kfree function just return when addr is NULL. There
will be no risk here.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 3 +--
1 file changed, 1 insertion
The "if(!encoder)" branch return the same value 0 of the success
branch, maybe return -EINVAL is more better.
Signed-off-by: Bernard Zhao
w
---
drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c | 14 +++---
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/g
There is no need to if check again, maybe we could merge
into the above else branch.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
b
Maybe we could reduce the mutex_lock(&mem->lock)`s protected code area,
and noneed to protect pr_debug.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 7 ---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd
On some processors, the / operate will call the compiler`s div lib,
which is low efficient, We can replace the / operation with shift,
so that we can replace the call of the division library with one
shift assembly instruction.
Signed-off-by: Bernard Zhao
---
drivers/gpu/drm/amd/amdgpu/gmc_v6_0
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