linux-kernel - [PATCH] gpu: drm: Use list_{next/prev}_entry instead of list

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Date:   Mon, 19 Mar 2018 10:35:30 +0530
From:   Arushi Singhal <arushisinghal19971997@...il.com>
To:     daniel.vetter@...el.com
Cc:     Gustavo Padovan <gustavo@...ovan.org>,
        Sean Paul <seanpaul@...omium.org>,
        David Airlie <airlied@...ux.ie>,
        Ben Skeggs <bskeggs@...hat.com>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        nouveau@...ts.freedesktop.org, outreachy-kernel@...glegroups.com
Subject: [PATCH] gpu: drm: Use list_{next/prev}_entry instead of list_entry

This patch replace list_entry with list_{next/prev}_entry as it makes
the code more clear to read.
Done using coccinelle:

@@
expression e1;
identifier e3;
type t;
@@
(
- list_entry(e1->e3.next,t,e3)
+ list_next_entry(e1,e3)
|
- list_entry(e1->e3.prev,t,e3)
+ list_prev_entry(e1,e3)
)

Signed-off-by: Arushi Singhal <arushisinghal19971997@...il.com>
---
 drivers/gpu/drm/drm_lease.c                    | 2 +-
 drivers/gpu/drm/nouveau/nvkm/subdev/clk/base.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_lease.c b/drivers/gpu/drm/drm_lease.c
index 1402c0e..4dcfb5f 100644
--- a/drivers/gpu/drm/drm_lease.c
+++ b/drivers/gpu/drm/drm_lease.c
@@ -340,7 +340,7 @@ static void _drm_lease_revoke(struct drm_master *top)
 				break;
 
 			/* Over */
-			master = list_entry(master->lessee_list.next, struct drm_master, lessee_list);
+			master = list_next_entry(master, lessee_list);
 		}
 	}
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/base.c
index e4c8d31..81c3567 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/base.c
@@ -134,7 +134,7 @@ nvkm_cstate_find_best(struct nvkm_clk *clk, struct nvkm_pstate *pstate,
 			       nvkm_volt_map(volt, volt->max2_id, clk->temp));
 
 	for (cstate = start; &cstate->head != &pstate->list;
-	     cstate = list_entry(cstate->head.prev, typeof(*cstate), head)) {
+	     cstate = list_prev_entry(cstate, head)) {
 		if (nvkm_cstate_valid(clk, cstate, max_volt, clk->temp))
 			break;
 	}
-- 
2.7.4