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author | Thomas Zimmermann <tzimmermann@suse.de> | 2023-09-22 10:04:56 +0200 |
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committer | Thomas Zimmermann <tzimmermann@suse.de> | 2023-10-12 09:20:46 +0200 |
commit | 052ddf7b86d2d9443bce77ef5b5b1ef61a3b79fc (patch) | |
tree | cba604afadc8aca42d2f5ce253c7dff4168e0da0 /drivers/video | |
parent | c205a67d28766ffaae3d02cdffc9c86d52ed6c2e (diff) | |
download | linux-stable-052ddf7b86d2d9443bce77ef5b5b1ef61a3b79fc.tar.gz linux-stable-052ddf7b86d2d9443bce77ef5b5b1ef61a3b79fc.tar.bz2 linux-stable-052ddf7b86d2d9443bce77ef5b5b1ef61a3b79fc.zip |
fbdev: Replace fb_pgprotect() with pgprot_framebuffer()
Rename the fbdev mmap helper fb_pgprotect() to pgprot_framebuffer().
The helper sets VMA page-access flags for framebuffers in device I/O
memory.
Also clean up the helper's parameters and return value. Instead of
the VMA instance, pass the individial parameters separately: existing
page-access flags, the VMAs start and end addresses and the offset
in the underlying device memory rsp file. Return the new page-access
flags. These changes align pgprot_framebuffer() with other pgprot_()
functions.
v4:
* fix commit message (Christophe)
v3:
* rename fb_pgprotect() to pgprot_framebuffer() (Arnd)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> # m68k
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230922080636.26762-3-tzimmermann@suse.de
Diffstat (limited to 'drivers/video')
-rw-r--r-- | drivers/video/fbdev/core/fb_chrdev.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/video/fbdev/core/fb_chrdev.c b/drivers/video/fbdev/core/fb_chrdev.c index eadb81f53a82..32a7315b4b6d 100644 --- a/drivers/video/fbdev/core/fb_chrdev.c +++ b/drivers/video/fbdev/core/fb_chrdev.c @@ -365,7 +365,8 @@ static int fb_mmap(struct file *file, struct vm_area_struct *vma) mutex_unlock(&info->mm_lock); vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); - fb_pgprotect(file, vma, start); + vma->vm_page_prot = pgprot_framebuffer(vma->vm_page_prot, vma->vm_start, + vma->vm_end, start); return vm_iomap_memory(vma, start, len); } |