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media: cx18: Replace custom implementation of list_entry_is_head()

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Besides list_entry_is_past_end() is the same as list_entry_is_head(),
it's implemented in the list namespace. Fix both of the issue by replacing
the custom version with list_entry_is_head() calls.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
This commit is contained in:
Andy Shevchenko
2025-05-28 14:32:04 +03:00
committed by Hans Verkuil
parent 1cb109d886
commit d8fbfcab95
3 changed files with 2 additions and 14 deletions
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12
drivers/media/pci/cx18/cx18-driver.h
View File

@@ -271,18 +271,6 @@ struct cx18_options {
#define CX18_SLICED_TYPE_WSS_625 (5)
#define CX18_SLICED_TYPE_VPS (7)
/**
* list_entry_is_past_end - check if a previous loop cursor is off list end
* @pos: the type * previously used as a loop cursor.
* @head: the head for your list.
* @member: the name of the list_head within the struct.
*
* Check if the entry's list_head is the head of the list, thus it's not a
* real entry but was the loop cursor that walked past the end
*/
#define list_entry_is_past_end(pos, head, member) \
(&pos->member == (head))
struct cx18_vb2_buffer {
/* Common video buffer sub-system struct */
struct vb2_v4l2_buffer vb;

2
drivers/media/pci/cx18/cx18-fileops.c
View File

@@ -371,7 +371,7 @@ static size_t cx18_copy_mdl_to_user(struct cx18_stream *s,
mdl->curr_buf = list_first_entry(&mdl->buf_list,
struct cx18_buffer, list);
if (list_entry_is_past_end(mdl->curr_buf, &mdl->buf_list, list)) {
if (list_entry_is_head(mdl->curr_buf, &mdl->buf_list, list)) {
/*
* For some reason we've exhausted the buffers, but the MDL
* object still said some data was unread.

2
drivers/media/pci/cx18/cx18-ioctl.c
View File

@@ -764,7 +764,7 @@ static int cx18_process_idx_data(struct cx18_stream *s, struct cx18_mdl *mdl,
mdl->curr_buf = list_first_entry(&mdl->buf_list,
struct cx18_buffer, list);
if (list_entry_is_past_end(mdl->curr_buf, &mdl->buf_list, list)) {
if (list_entry_is_head(mdl->curr_buf, &mdl->buf_list, list)) {
/*
* For some reason we've exhausted the buffers, but the MDL
* object still said some data was unread.