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| author | Jiri Kosina <jkosina@suse.cz> | 2023-11-01 02:07:35 +0300 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2023-11-01 02:07:35 +0300 |
| commit | 20cd569d7ee8fce24e8753f0f43af6c420557b1f (patch) | |
| tree | f559cfda594846795aa51c99d96f92d8c912851a /drivers/media/common/videobuf2/frame_vector.c | |
| parent | 62cc9c3cb3ec1bf31cc116146185ed97b450836a (diff) | |
| parent | eeebfe6259ba2d5b0980eb7b0df384eb77e9e4f5 (diff) | |
| download | linux-20cd569d7ee8fce24e8753f0f43af6c420557b1f.tar.xz | |
Merge branch 'for-6.7/config_pm' into for-linus
- #ifdef CONFIG_PM removal from HID code (Thomas Weißschuh)
Diffstat (limited to 'drivers/media/common/videobuf2/frame_vector.c')
| -rw-r--r-- | drivers/media/common/videobuf2/frame_vector.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/media/common/videobuf2/frame_vector.c b/drivers/media/common/videobuf2/frame_vector.c index 0f430ddc1f67..fd87747be9b1 100644 --- a/drivers/media/common/videobuf2/frame_vector.c +++ b/drivers/media/common/videobuf2/frame_vector.c @@ -31,6 +31,10 @@ * different type underlying the specified range of virtual addresses. * When the function isn't able to map a single page, it returns error. * + * Note that get_vaddr_frames() cannot follow VM_IO mappings. It used + * to be able to do that, but that could (racily) return non-refcounted + * pfns. + * * This function takes care of grabbing mmap_lock as necessary. */ int get_vaddr_frames(unsigned long start, unsigned int nr_frames, bool write, @@ -59,8 +63,6 @@ int get_vaddr_frames(unsigned long start, unsigned int nr_frames, bool write, if (likely(ret > 0)) return ret; - /* This used to (racily) return non-refcounted pfns. Let people know */ - WARN_ONCE(1, "get_vaddr_frames() cannot follow VM_IO mapping"); vec->nr_frames = 0; return ret ? ret : -EFAULT; } |