linux-kernel - [PATCH v13 01/56] media: videobuf2: Rename offset parameter

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Date:   Thu, 19 Oct 2023 14:51:27 +0200
From:   Benjamin Gaignard <benjamin.gaignard@...labora.com>
To:     mchehab@...nel.org, tfiga@...omium.org, m.szyprowski@...sung.com,
        ming.qian@....com, ezequiel@...guardiasur.com.ar,
        p.zabel@...gutronix.de, gregkh@...uxfoundation.org,
        hverkuil-cisco@...all.nl, nicolas.dufresne@...labora.com
Cc:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-arm-msm@...r.kernel.org,
        linux-rockchip@...ts.infradead.org, linux-staging@...ts.linux.dev,
        kernel@...labora.com,
        Benjamin Gaignard <benjamin.gaignard@...labora.com>
Subject: [PATCH v13 01/56] media: videobuf2: Rename offset parameter

Rename 'off' parameter to 'offset' to clarify the code.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...labora.com>
---
 .../media/common/videobuf2/videobuf2-core.c   | 26 +++++++++----------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index 27aee92f3eea..a5e57affeb30 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -356,23 +356,23 @@ static void __setup_offsets(struct vb2_buffer *vb)
 {
 	struct vb2_queue *q = vb->vb2_queue;
 	unsigned int plane;
-	unsigned long off = 0;
+	unsigned long offset = 0;
 
 	if (vb->index) {
 		struct vb2_buffer *prev = q->bufs[vb->index - 1];
 		struct vb2_plane *p = &prev->planes[prev->num_planes - 1];
 
-		off = PAGE_ALIGN(p->m.offset + p->length);
+		offset = PAGE_ALIGN(p->m.offset + p->length);
 	}
 
 	for (plane = 0; plane < vb->num_planes; ++plane) {
-		vb->planes[plane].m.offset = off;
+		vb->planes[plane].m.offset = offset;
 
 		dprintk(q, 3, "buffer %d, plane %d offset 0x%08lx\n",
-				vb->index, plane, off);
+				vb->index, plane, offset);
 
-		off += vb->planes[plane].length;
-		off = PAGE_ALIGN(off);
+		offset += vb->planes[plane].length;
+		offset = PAGE_ALIGN(offset);
 	}
 }
 
@@ -2185,9 +2185,9 @@ int vb2_core_streamoff(struct vb2_queue *q, unsigned int type)
 EXPORT_SYMBOL_GPL(vb2_core_streamoff);
 
 /*
- * __find_plane_by_offset() - find plane associated with the given offset off
+ * __find_plane_by_offset() - find plane associated with the given offset
  */
-static int __find_plane_by_offset(struct vb2_queue *q, unsigned long off,
+static int __find_plane_by_offset(struct vb2_queue *q, unsigned long offset,
 			unsigned int *_buffer, unsigned int *_plane)
 {
 	struct vb2_buffer *vb;
@@ -2218,7 +2218,7 @@ static int __find_plane_by_offset(struct vb2_queue *q, unsigned long off,
 		vb = q->bufs[buffer];
 
 		for (plane = 0; plane < vb->num_planes; ++plane) {
-			if (vb->planes[plane].m.offset == off) {
+			if (vb->planes[plane].m.offset == offset) {
 				*_buffer = buffer;
 				*_plane = plane;
 				return 0;
@@ -2304,7 +2304,7 @@ EXPORT_SYMBOL_GPL(vb2_core_expbuf);
 
 int vb2_mmap(struct vb2_queue *q, struct vm_area_struct *vma)
 {
-	unsigned long off = vma->vm_pgoff << PAGE_SHIFT;
+	unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
 	struct vb2_buffer *vb;
 	unsigned int buffer = 0, plane = 0;
 	int ret;
@@ -2335,7 +2335,7 @@ int vb2_mmap(struct vb2_queue *q, struct vm_area_struct *vma)
 	 * Find the plane corresponding to the offset passed by userspace. This
 	 * will return an error if not MEMORY_MMAP or file I/O is in progress.
 	 */
-	ret = __find_plane_by_offset(q, off, &buffer, &plane);
+	ret = __find_plane_by_offset(q, offset, &buffer, &plane);
 	if (ret)
 		goto unlock;
 
@@ -2380,7 +2380,7 @@ unsigned long vb2_get_unmapped_area(struct vb2_queue *q,
 				    unsigned long pgoff,
 				    unsigned long flags)
 {
-	unsigned long off = pgoff << PAGE_SHIFT;
+	unsigned long offset = pgoff << PAGE_SHIFT;
 	struct vb2_buffer *vb;
 	unsigned int buffer, plane;
 	void *vaddr;
@@ -2392,7 +2392,7 @@ unsigned long vb2_get_unmapped_area(struct vb2_queue *q,
 	 * Find the plane corresponding to the offset passed by userspace. This
 	 * will return an error if not MEMORY_MMAP or file I/O is in progress.
 	 */
-	ret = __find_plane_by_offset(q, off, &buffer, &plane);
+	ret = __find_plane_by_offset(q, offset, &buffer, &plane);
 	if (ret)
 		goto unlock;
 
-- 
2.39.2