linux-kernel - [PATCH v3 0/2] vdso: Use only headers from the vdso/ namespace

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Message-Id: <20241003152910.3287259-1-vincenzo.frascino@arm.com>
Date: Thu,  3 Oct 2024 16:29:08 +0100
From: Vincenzo Frascino <vincenzo.frascino@....com>
To: linux-kernel@...r.kernel.org,
	linux-arch@...r.kernel.org,
	linux-mm@...ck.org
Cc: Vincenzo Frascino <vincenzo.frascino@....com>,
	Andy Lutomirski <luto@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"Jason A . Donenfeld" <Jason@...c4.com>,
	Christophe Leroy <christophe.leroy@...roup.eu>,
	Michael Ellerman <mpe@...erman.id.au>,
	Nicholas Piggin <npiggin@...il.com>,
	Naveen N Rao <naveen@...nel.org>,
	Ingo Molnar <mingo@...hat.com>,
	Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	"H . Peter Anvin" <hpa@...or.com>,
	Theodore Ts'o <tytso@....edu>,
	Arnd Bergmann <arnd@...db.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Subject: [PATCH v3 0/2] vdso: Use only headers from the vdso/ namespace

The recent implementation of getrandom in the generic vdso library,
includes headers from outside of the vdso/ namespace.

The purpose of this patch series is to refactor the code to make sure
that the library uses only the allowed namespace.

The series has been rebased on [1] to simplify the testing. 

[1] git://git.kernel.org/pub/scm/linux/kernel/git/crng/random.git master

Changes:
--------
v3:
  - Discard vdso/mman.h changes in favor of [2].
  - Refactor vdso/page.h.
  - Add a fix to drm/intel_gt.
v2:
  - Added common PAGE_SIZE and PAGE_MASK definitions.
  - Added opencoded macros where not defined.
  - Dropped VDSO_PAGE_* redefinitions.

[2] https://lore.kernel.org/lkml/20240925210615.2572360-1-arnd@kernel.org

Cc: Andy Lutomirski <luto@...nel.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Jason A. Donenfeld <Jason@...c4.com>
Cc: Christophe Leroy <christophe.leroy@...roup.eu>
Cc: Michael Ellerman <mpe@...erman.id.au>
Cc: Nicholas Piggin <npiggin@...il.com>
Cc: Christophe Leroy <christophe.leroy@...roup.eu>
Cc: Naveen N Rao <naveen@...nel.org>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: Borislav Petkov <bp@...en8.de>
Cc: Dave Hansen <dave.hansen@...ux.intel.com>
Cc: H. Peter Anvin <hpa@...or.com>
Cc: Theodore Ts'o <tytso@....edu>
Cc: Arnd Bergmann <arnd@...db.de>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: Masami Hiramatsu <mhiramat@...nel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@....com>

Vincenzo Frascino (2):
  drm: Fix fault format
  vdso: Introduce vdso/page.h

 arch/alpha/include/asm/page.h      |  6 +-----
 arch/arc/include/uapi/asm/page.h   |  7 +++----
 arch/arm/include/asm/page.h        |  5 +----
 arch/arm64/include/asm/page-def.h  |  5 +----
 arch/csky/include/asm/page.h       |  8 ++------
 arch/hexagon/include/asm/page.h    |  4 +---
 arch/loongarch/include/asm/page.h  |  7 +------
 arch/m68k/include/asm/page.h       |  6 ++----
 arch/microblaze/include/asm/page.h |  5 +----
 arch/mips/include/asm/page.h       |  7 +------
 arch/nios2/include/asm/page.h      |  7 +------
 arch/openrisc/include/asm/page.h   | 11 +----------
 arch/parisc/include/asm/page.h     |  4 +---
 arch/powerpc/include/asm/page.h    | 10 +---------
 arch/riscv/include/asm/page.h      |  4 +---
 arch/s390/include/asm/page.h       |  4 +---
 arch/sh/include/asm/page.h         |  6 ++----
 arch/sparc/include/asm/page_32.h   |  4 +---
 arch/sparc/include/asm/page_64.h   |  4 +---
 arch/um/include/asm/page.h         |  5 +----
 arch/x86/include/asm/page_types.h  |  5 +----
 arch/xtensa/include/asm/page.h     |  8 +-------
 drivers/gpu/drm/i915/gt/intel_gt.c |  2 +-
 include/vdso/page.h                | 23 +++++++++++++++++++++++
 24 files changed, 51 insertions(+), 106 deletions(-)
 create mode 100644 include/vdso/page.h

-- 
2.34.1