linux-kernel - [PATCH v3 0/3] arch: Remove fbdev dependency from video helpers

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20240329203450.7824-1-tzimmermann@suse.de>
Date: Fri, 29 Mar 2024 21:32:09 +0100
From: Thomas Zimmermann <tzimmermann@...e.de>
To: arnd@...db.de,
	sam@...nborg.org,
	javierm@...hat.com,
	deller@....de,
	sui.jingfeng@...ux.dev
Cc: linux-arch@...r.kernel.org,
	dri-devel@...ts.freedesktop.org,
	linux-fbdev@...r.kernel.org,
	sparclinux@...r.kernel.org,
	linux-sh@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org,
	linux-parisc@...r.kernel.org,
	linux-mips@...r.kernel.org,
	linux-m68k@...ts.linux-m68k.org,
	loongarch@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-snps-arc@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Thomas Zimmermann <tzimmermann@...e.de>
Subject: [PATCH v3 0/3] arch: Remove fbdev dependency from video helpers

Make architecture helpers for display functionality depend on general
video functionality instead of fbdev. This avoids the dependency on
fbdev and makes the functionality available for non-fbdev code.

Patch 1 replaces the variety of Kconfig options that control the
Makefiles with CONFIG_VIDEO. More fine-grained control of the build
can then be done within each video/ directory; see parisc for an
example.

Patch 2 replaces fb_is_primary_device() with video_is_primary_device(),
which has no dependencies on fbdev. The implementation remains identical
on all affected platforms. There's one minor change in fbcon, which is
the only caller of fb_is_primary_device().

Patch 3 renames the source and header files from fbdev to video.

v3:
- arc, arm, arm64, sh, um: generate asm/video.h (Sam, Helge, Arnd)
- fix typos (Sam)
v2:
- improve cover letter
- rebase onto v6.9-rc1

Thomas Zimmermann (3):
  arch: Select fbdev helpers with CONFIG_VIDEO
  arch: Remove struct fb_info from video helpers
  arch: Rename fbdev header and source files

 arch/arc/include/asm/fb.h                    |  8 ------
 arch/arm/include/asm/fb.h                    |  6 -----
 arch/arm64/include/asm/fb.h                  | 10 --------
 arch/loongarch/include/asm/{fb.h => video.h} |  8 +++---
 arch/m68k/include/asm/{fb.h => video.h}      |  8 +++---
 arch/mips/include/asm/{fb.h => video.h}      | 12 ++++-----
 arch/parisc/Makefile                         |  2 +-
 arch/parisc/include/asm/fb.h                 | 14 -----------
 arch/parisc/include/asm/video.h              | 16 ++++++++++++
 arch/parisc/video/Makefile                   |  2 +-
 arch/parisc/video/{fbdev.c => video-sti.c}   |  9 ++++---
 arch/powerpc/include/asm/{fb.h => video.h}   |  8 +++---
 arch/powerpc/kernel/pci-common.c             |  2 +-
 arch/sh/include/asm/fb.h                     |  7 ------
 arch/sparc/Makefile                          |  4 +--
 arch/sparc/include/asm/{fb.h => video.h}     | 15 +++++------
 arch/sparc/video/Makefile                    |  2 +-
 arch/sparc/video/fbdev.c                     | 26 --------------------
 arch/sparc/video/video.c                     | 25 +++++++++++++++++++
 arch/um/include/asm/Kbuild                   |  2 +-
 arch/x86/Makefile                            |  2 +-
 arch/x86/include/asm/fb.h                    | 19 --------------
 arch/x86/include/asm/video.h                 | 21 ++++++++++++++++
 arch/x86/video/Makefile                      |  3 ++-
 arch/x86/video/{fbdev.c => video.c}          | 21 +++++++---------
 drivers/video/fbdev/core/fbcon.c             |  2 +-
 include/asm-generic/Kbuild                   |  2 +-
 include/asm-generic/{fb.h => video.h}        | 17 +++++++------
 include/linux/fb.h                           |  2 +-
 29 files changed, 124 insertions(+), 151 deletions(-)
 delete mode 100644 arch/arc/include/asm/fb.h
 delete mode 100644 arch/arm/include/asm/fb.h
 delete mode 100644 arch/arm64/include/asm/fb.h
 rename arch/loongarch/include/asm/{fb.h => video.h} (86%)
 rename arch/m68k/include/asm/{fb.h => video.h} (86%)
 rename arch/mips/include/asm/{fb.h => video.h} (76%)
 delete mode 100644 arch/parisc/include/asm/fb.h
 create mode 100644 arch/parisc/include/asm/video.h
 rename arch/parisc/video/{fbdev.c => video-sti.c} (78%)
 rename arch/powerpc/include/asm/{fb.h => video.h} (76%)
 delete mode 100644 arch/sh/include/asm/fb.h
 rename arch/sparc/include/asm/{fb.h => video.h} (75%)
 delete mode 100644 arch/sparc/video/fbdev.c
 create mode 100644 arch/sparc/video/video.c
 delete mode 100644 arch/x86/include/asm/fb.h
 create mode 100644 arch/x86/include/asm/video.h
 rename arch/x86/video/{fbdev.c => video.c} (66%)
 rename include/asm-generic/{fb.h => video.h} (89%)

-- 
2.44.0