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[v3,0/5] ppc, fbdev: Clean up fbdev mmap helper

Message ID 20230911131033.27745-1-tzimmermann@suse.de
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Series ppc, fbdev: Clean up fbdev mmap helper | expand

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Thomas Zimmermann Sept. 11, 2023, 1:08 p.m. UTC 
Clean up and rename fb_pgprotect() to work without struct file. Then
refactor the implementation for PowerPC. This change has been discussed
at [1] in the context of refactoring fbdev's mmap code.

The first two patches update fbdev and replace fbdev's fb_pgprotect()
with pgprot_framebuffer() on all architectures. The new helper's stream-
lined interface enables more refactoring within fbdev's mmap
implementation.

Patches 3 to 5 adapt PowerPC's internal interfaces to provide
phys_mem_access_prot() that works without struct file. Neither the
architecture code or fbdev helpers need the parameter.

v3:
	* rename fb_pgrotect() to pgprot_framebuffer() (Arnd)
v2:
	* reorder patches to simplify merging (Michael)

[1] https://lore.kernel.org/linuxppc-dev/5501ba80-bdb0-6344-16b0-0466a950f82c@suse.com/

Thomas Zimmermann (5):
  fbdev: Avoid file argument in fb_pgprotect()
  fbdev: Replace fb_pgprotect() with fb_pgprot_device()
  arch/powerpc: Remove trailing whitespaces
  arch/powerpc: Remove file parameter from phys_mem_access_prot code
  arch/powerpc: Call internal __phys_mem_access_prot() in fbdev code

 arch/ia64/include/asm/fb.h                | 15 +++++++--------
 arch/m68k/include/asm/fb.h                | 19 ++++++++++---------
 arch/mips/include/asm/fb.h                | 11 +++++------
 arch/powerpc/include/asm/book3s/pgtable.h | 10 ++++++++--
 arch/powerpc/include/asm/fb.h             | 13 +++++--------
 arch/powerpc/include/asm/machdep.h        | 13 ++++++-------
 arch/powerpc/include/asm/nohash/pgtable.h | 10 ++++++++--
 arch/powerpc/include/asm/pci.h            |  4 +---
 arch/powerpc/kernel/pci-common.c          |  3 +--
 arch/powerpc/mm/mem.c                     |  8 ++++----
 arch/sparc/include/asm/fb.h               | 15 +++++++++------
 arch/x86/include/asm/fb.h                 | 10 ++++++----
 arch/x86/video/fbdev.c                    | 15 ++++++++-------
 drivers/video/fbdev/core/fb_chrdev.c      |  3 ++-
 include/asm-generic/fb.h                  | 12 ++++++------
 15 files changed, 86 insertions(+), 75 deletions(-)