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authorArushi Singhal <arushisinghal19971997@gmail.com>2018-05-08 16:13:09 +0300
committerBen Skeggs <bskeggs@redhat.com>2018-05-18 10:09:35 +0300
commitdd3b89be3eafd1c9977e350e81c5556230319101 (patch)
tree2bd53f0896aadb75b0ddfe211678db5f95b4a46e /drivers/gpu/drm/nouveau
parent7a22c737faef99d6f75d7049c1a2f6f0fdefb1ec (diff)
downloadlinux-dd3b89be3eafd1c9977e350e81c5556230319101.tar.xz
drm/nouveau/clk: Use list_for_each_entry_from_reverse
It's better to use "list_for_each_entry_from_reverse" for iterating list than "for loop" as it makes the code more clear to read. This patch replace "for loop" with "list_for_each_entry_from_reverse" and "start" variable with "cstate" which helps in refactoring the code and also "cstate" variable is more commonly used in the other functions. changes in v2: "start" variable is removed, before "cstate" variable was removed but "cstate" is more common so preferred "cstate" over "start". Signed-off-by: Arushi Singhal <arushisinghal19971997@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/clk/base.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/base.c
index 81c3567d4e67..ba6a868d4c95 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/base.c
@@ -109,18 +109,17 @@ nvkm_cstate_valid(struct nvkm_clk *clk, struct nvkm_cstate *cstate,
static struct nvkm_cstate *
nvkm_cstate_find_best(struct nvkm_clk *clk, struct nvkm_pstate *pstate,
- struct nvkm_cstate *start)
+ struct nvkm_cstate *cstate)
{
struct nvkm_device *device = clk->subdev.device;
struct nvkm_volt *volt = device->volt;
- struct nvkm_cstate *cstate;
int max_volt;
- if (!pstate || !start)
+ if (!pstate || !cstate)
return NULL;
if (!volt)
- return start;
+ return cstate;
max_volt = volt->max_uv;
if (volt->max0_id != 0xff)
@@ -133,8 +132,7 @@ nvkm_cstate_find_best(struct nvkm_clk *clk, struct nvkm_pstate *pstate,
max_volt = min(max_volt,
nvkm_volt_map(volt, volt->max2_id, clk->temp));
- for (cstate = start; &cstate->head != &pstate->list;
- cstate = list_prev_entry(cstate, head)) {
+ list_for_each_entry_from_reverse(cstate, &pstate->list, head) {
if (nvkm_cstate_valid(clk, cstate, max_volt, clk->temp))
break;
}