[PATCH v2 0/5] ppc, fbdev: Clean up fbdev mmap helper

Thomas Zimmermann
2023-09-06T14:48:10Z

Clean up and rename fb_pgprotect() to work without struct file. Then
refactor the implemnetation 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 fb_pgprot_device() 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.

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(-)

--
2.42.0