The patch titled
Subject: video/uvc: use memweight()
has been added to the -mm tree. Its filename is
video-uvc-use-memweight.patch
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From: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Subject: video/uvc: use memweight()
Use memweight() to count the total number of bits set in memory area.
Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Acked-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/media/video/uvc/uvc_ctrl.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff -puN drivers/media/video/uvc/uvc_ctrl.c~video-uvc-use-memweight drivers/media/video/uvc/uvc_ctrl.c
--- a/drivers/media/video/uvc/uvc_ctrl.c~video-uvc-use-memweight
+++ a/drivers/media/video/uvc/uvc_ctrl.c
@@ -2083,7 +2083,7 @@ int uvc_ctrl_init_device(struct uvc_devi
/* Walk the entities list and instantiate controls */
list_for_each_entry(entity, &dev->entities, list) {
struct uvc_control *ctrl;
- unsigned int bControlSize = 0, ncontrols = 0;
+ unsigned int bControlSize = 0, ncontrols;
__u8 *bmControls = NULL;
if (UVC_ENTITY_TYPE(entity) == UVC_VC_EXTENSION_UNIT) {
@@ -2101,8 +2101,7 @@ int uvc_ctrl_init_device(struct uvc_devi
uvc_ctrl_prune_entity(dev, entity);
/* Count supported controls and allocate the controls array */
- for (i = 0; i < bControlSize; ++i)
- ncontrols += hweight8(bmControls[i]);
+ ncontrols = memweight(bmControls, bControlSize);
if (ncontrols == 0)
continue;
_
Subject: Subject: video/uvc: use memweight()
Patches currently in -mm which might be from akinobu.mita@xxxxxxxxx are
linux-next.patch
ocfs2-use-find_last_bit.patch
ocfs2-use-bitmap_weight.patch
string-introduce-memweight.patch
string-introduce-memweight-fix.patch
qnx4fs-use-memweight.patch
dm-use-memweight.patch
affs-use-memweight.patch
video-uvc-use-memweight.patch
ocfs2-use-memweight.patch
ext2-use-memweight.patch
ext3-use-memweight.patch
ext4-use-memweight.patch
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