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Subject[PATCH v4 0/4] compat: remove compat_alloc_user_space callers
Date
From: Arnd Bergmann <arnd@arndb.de>

Going through compat_alloc_user_space() to convert indirect system call
arguments tends to add complexity compared to handling the native and
compat logic in the same code.

The drivers/media portion of the longer series is already merged,
and I just resubmitted the net/core and drivers/net portions, so this
is the last main bit.

Arnd
---

Changes in v4:

- Rebase to v5.14-rc2
- Replace the kexec patch with a version based on Eric Biederman's
prototype

Changes in v3:

- fix whitespace as pointed out by Christoph Hellwig
- minor build fixes
- rebase to v5.13-rc1

Link: https://lore.kernel.org/lkml/20210517203343.3941777-1-arnd@kernel.org/

Changes in v2:

- address review comments from Christoph Hellwig
- split syscall removal into a separate patch
- replace __X32_COND_SYSCALL() with individual macros for x32

Link: https://lore.kernel.org/lkml/20201208150614.GA15765@infradead.org/

Arnd Bergmann (4):
kexec: avoid compat_alloc_user_space
mm: simplify compat_sys_move_pages
mm: simplify compat numa syscalls
compat: remove some compat entry points

arch/arm64/include/asm/unistd32.h | 10 +-
arch/mips/kernel/syscalls/syscall_n32.tbl | 10 +-
arch/mips/kernel/syscalls/syscall_o32.tbl | 10 +-
arch/parisc/kernel/syscalls/syscall.tbl | 8 +-
arch/powerpc/kernel/syscalls/syscall.tbl | 10 +-
arch/s390/kernel/syscalls/syscall.tbl | 10 +-
arch/sparc/kernel/syscalls/syscall.tbl | 10 +-
arch/x86/entry/syscalls/syscall_32.tbl | 4 +-
arch/x86/entry/syscalls/syscall_64.tbl | 2 +-
include/linux/compat.h | 37 +---
include/uapi/asm-generic/unistd.h | 10 +-
kernel/kexec.c | 116 ++++++-------
kernel/sys_ni.c | 5 -
mm/mempolicy.c | 196 +++++-----------------
mm/migrate.c | 50 +++---
15 files changed, 182 insertions(+), 306 deletions(-)

--
2.29.2

Cc: Christoph Hellwig <hch@infradead.org>
Cc: linux-arch <linux-arch@vger.kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linux ARM <linux-arm-kernel@lists.infradead.org>
Cc: linux-kernel@vger.kernel.org
Cc: Linux-MM <linux-mm@kvack.org>
Cc: kexec@lists.infradead.org

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