[PATCH] devres: Simple code optimization

From: Zijun Hu
Date: Thu Jun 27 2024 - 09:47:38 EST


Initialize an uninitialized struct member for devres_open_group()
and simplify devm_percpu_match() implementation.

Signed-off-by: Zijun Hu <quic_zijuhu@xxxxxxxxxxx>
---
This change is intend to replace below one:
https://lore.kernel.org/lkml/1718629765-32720-1-git-send-email-quic_zijuhu@xxxxxxxxxxx/#t

drivers/base/devres.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/base/devres.c b/drivers/base/devres.c
index 3df0025d12aa..5b1d498e83ab 100644
--- a/drivers/base/devres.c
+++ b/drivers/base/devres.c
@@ -567,6 +567,7 @@ void * devres_open_group(struct device *dev, void *id, gfp_t gfp)
grp->id = grp;
if (id)
grp->id = id;
+ grp->color = 0;

spin_lock_irqsave(&dev->devres_lock, flags);
add_dr(dev, &grp->node[0]);
@@ -1172,9 +1173,9 @@ static void devm_percpu_release(struct device *dev, void *pdata)

static int devm_percpu_match(struct device *dev, void *data, void *p)
{
- struct devres *devr = container_of(data, struct devres, data);
+ void __percpu *ptr = *(void __percpu **)data;

- return *(void **)devr->data == p;
+ return ptr == (void __percpu *)p;
}

/**
--
2.7.4