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Message-Id: <20240825162300.417306-1-sui.jingfeng@linux.dev>
Date: Mon, 26 Aug 2024 00:23:00 +0800
From: Sui Jingfeng <sui.jingfeng@...ux.dev>
To: Lucas Stach <l.stach@...gutronix.de>,
Russell King <linux+etnaviv@...linux.org.uk>,
Christian Gmeiner <christian.gmeiner@...il.com>
Cc: David Airlie <airlied@...il.com>,
Daniel Vetter <daniel@...ll.ch>,
etnaviv@...ts.freedesktop.org,
dri-devel@...ts.freedesktop.org,
linux-kernel@...r.kernel.org,
Sui Jingfeng <sui.jingfeng@...ux.dev>
Subject: [PATCH] drm/etnaviv: Use unsigned type to count the number of pages
The drm_prime_pages_to_sg() function takes unsigned int argument to store
length of the page vector, and the type of struct drm_gem_object::size is
a size_t. The size of the object in CPU pages can not be negative, hence,
use unsigned variable to store the number of pages, instead of the signed
type.
Signed-off-by: Sui Jingfeng <sui.jingfeng@...ux.dev>
---
drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
index 3524b5811682..6b98200068e4 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
@@ -17,7 +17,7 @@ static struct lock_class_key etnaviv_prime_lock_class;
struct sg_table *etnaviv_gem_prime_get_sg_table(struct drm_gem_object *obj)
{
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
- int npages = obj->size >> PAGE_SHIFT;
+ unsigned int npages = obj->size >> PAGE_SHIFT;
if (WARN_ON(!etnaviv_obj->pages)) /* should have already pinned! */
return ERR_PTR(-EINVAL);
--
2.34.1
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