]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
maccess: unify the probe kernel arch hooks
authorChristoph Hellwig <hch@lst.de>
Tue, 9 Jun 2020 04:34:27 +0000 (21:34 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 9 Jun 2020 16:39:15 +0000 (09:39 -0700)
commiteab0c6089b68974ebc6a9a7eab68456eeb6a99c7
tree6b03656fac37fc4c4e43c74e33a5fd5b9f3d2b68
parentcd0309058f849257f08d1a3dd0c384d1fd20c1e8
maccess: unify the probe kernel arch hooks

Currently architectures have to override every routine that probes
kernel memory, which includes a pure read and strcpy, both in strict
and not strict variants.  Just provide a single arch hooks instead to
make sure all architectures cover all the cases.

[akpm@linux-foundation.org: fix !CONFIG_X86_64 build]

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20200521152301.2587579-11-hch@lst.de
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/parisc/lib/memcpy.c
arch/um/kernel/maccess.c
arch/x86/mm/maccess.c
include/linux/uaccess.h
mm/maccess.c