Am 02.11.20 um 20:43 schrieb Alex Deucher:
On Mon, Nov 2, 2020 at 1:42 PM Deepak R Varma <mh12gx2825@xxxxxxxxx> wrote:
Initializing global variable to 0 or NULL is not necessary and should
be avoided. Issue reported by checkpatch script as:
ERROR: do not initialise globals to 0 (or NULL).
I agree that this is technically correct, but a lot of people don't
seem to know that so we get a lot of comments about this code for the
variables that are not explicitly set. Seems less confusing to
initialize them even if it not necessary. I don't have a particularly
strong opinion on it however.
Agree with Alex.
Especially for the module parameters we should have a explicit init
value for documentation purposes, even when it is 0.
Christian.
Alex
Signed-off-by: Deepak R Varma <mh12gx2825@xxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 46 ++++++++++++-------------
drivers/gpu/drm/amd/amdgpu/atom.c | 4 +--
2 files changed, 25 insertions(+), 25 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 8ab6126ff70c..6de94c46bc91 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -94,16 +94,16 @@
#define KMS_DRIVER_MINOR 40
#define KMS_DRIVER_PATCHLEVEL 0
-int amdgpu_vram_limit = 0;
-int amdgpu_vis_vram_limit = 0;
+int amdgpu_vram_limit;
+int amdgpu_vis_vram_limit;
int amdgpu_gart_size = -1; /* auto */
int amdgpu_gtt_size = -1; /* auto */
int amdgpu_moverate = -1; /* auto */
-int amdgpu_benchmarking = 0;
-int amdgpu_testing = 0;
+int amdgpu_benchmarking;
+int amdgpu_testing;
int amdgpu_audio = -1;
-int amdgpu_disp_priority = 0;
-int amdgpu_hw_i2c = 0;
+int amdgpu_disp_priority;
+int amdgpu_hw_i2c;
int amdgpu_pcie_gen2 = -1;
int amdgpu_msi = -1;
char amdgpu_lockup_timeout[AMDGPU_MAX_TIMEOUT_PARAM_LENGTH];
@@ -113,43 +113,43 @@ int amdgpu_aspm = -1;
int amdgpu_runtime_pm = -1;
uint amdgpu_ip_block_mask = 0xffffffff;
int amdgpu_bapm = -1;
-int amdgpu_deep_color = 0;
+int amdgpu_deep_color;
int amdgpu_vm_size = -1;
int amdgpu_vm_fragment_size = -1;
int amdgpu_vm_block_size = -1;
-int amdgpu_vm_fault_stop = 0;
-int amdgpu_vm_debug = 0;
+int amdgpu_vm_fault_stop;
+int amdgpu_vm_debug;
int amdgpu_vm_update_mode = -1;
-int amdgpu_exp_hw_support = 0;
+int amdgpu_exp_hw_support;
int amdgpu_dc = -1;
int amdgpu_sched_jobs = 32;
int amdgpu_sched_hw_submission = 2;
-uint amdgpu_pcie_gen_cap = 0;
-uint amdgpu_pcie_lane_cap = 0;
+uint amdgpu_pcie_gen_cap;
+uint amdgpu_pcie_lane_cap;
uint amdgpu_cg_mask = 0xffffffff;
uint amdgpu_pg_mask = 0xffffffff;
uint amdgpu_sdma_phase_quantum = 32;
-char *amdgpu_disable_cu = NULL;
-char *amdgpu_virtual_display = NULL;
+char *amdgpu_disable_cu;
+char *amdgpu_virtual_display;
/* OverDrive(bit 14) disabled by default*/
uint amdgpu_pp_feature_mask = 0xffffbfff;
-uint amdgpu_force_long_training = 0;
-int amdgpu_job_hang_limit = 0;
+uint amdgpu_force_long_training;
+int amdgpu_job_hang_limit;
int amdgpu_lbpw = -1;
int amdgpu_compute_multipipe = -1;
int amdgpu_gpu_recovery = -1; /* auto */
-int amdgpu_emu_mode = 0;
-uint amdgpu_smu_memory_pool_size = 0;
+int amdgpu_emu_mode;
+uint amdgpu_smu_memory_pool_size;
/* FBC (bit 0) disabled by default*/
-uint amdgpu_dc_feature_mask = 0;
-uint amdgpu_dc_debug_mask = 0;
+uint amdgpu_dc_feature_mask;
+uint amdgpu_dc_debug_mask;
int amdgpu_async_gfx_ring = 1;
-int amdgpu_mcbp = 0;
+int amdgpu_mcbp;
int amdgpu_discovery = -1;
-int amdgpu_mes = 0;
+int amdgpu_mes;
int amdgpu_noretry = -1;
int amdgpu_force_asic_type = -1;
-int amdgpu_tmz = 0;
+int amdgpu_tmz;
int amdgpu_reset_method = -1; /* auto */
int amdgpu_num_kcq = -1;
diff --git a/drivers/gpu/drm/amd/amdgpu/atom.c b/drivers/gpu/drm/amd/amdgpu/atom.c
index 696e97ab77eb..46c00ee580b1 100644
--- a/drivers/gpu/drm/amd/amdgpu/atom.c
+++ b/drivers/gpu/drm/amd/amdgpu/atom.c
@@ -66,7 +66,7 @@ typedef struct {
bool abort;
} atom_exec_context;
-int amdgpu_atom_debug = 0;
+int amdgpu_atom_debug;
static int amdgpu_atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params);
int amdgpu_atom_execute_table(struct atom_context *ctx, int index, uint32_t * params);
@@ -88,7 +88,7 @@ static int atom_dst_to_src[8][4] = {
};
static int atom_def_dst[8] = { 0, 0, 1, 2, 0, 1, 2, 3 };
-static int debug_depth = 0;
+static int debug_depth;
#ifdef ATOM_DEBUG
static void debug_print_spaces(int n)
{
--
2.25.1
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