Regularize the sitation with uaccess checksum primitives, fold
csum_partial_... into csum_and_copy_..._user(), on x86 collapse several
access_ok()/stac()/clac() into user_access_begin()/user_access_end()
The following changes since commit 8f3d9f354286745c751374f5f1fcafee6b3f3136:
Linux 5.7-rc1 (2020-04-12 12:35:55 -0700)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git uaccess.csum
for you to fetch changes up to 001c1a655f0a4e4ebe5d9beb47466dc5c6ab4871:
default csum_and_copy_to_user(): don't bother with access_ok() (2020-05-29 16:11:50 -0400)
----------------------------------------------------------------
Al Viro (15):
get rid of csum_partial_copy_to_user()
x86_64: csum_..._copy_..._user(): switch to unsafe_..._user()
x86: switch both 32bit and 64bit to providing csum_and_copy_from_user()
x86: switch 32bit csum_and_copy_to_user() to user_access_{begin,end}()
ia64: csum_partial_copy_nocheck(): don't abuse csum_partial_copy_from_user()
ia64: turn csum_partial_copy_from_user() into csum_and_copy_from_user()
alpha: turn csum_partial_copy_from_user() into csum_and_copy_from_user()
parisc: turn csum_partial_copy_from_user() into csum_and_copy_from_user()
sparc: switch to providing csum_and_copy_from_user()
xtensa: switch to providing csum_and_copy_from_user()
m68k: convert to csum_and_copy_from_user()
sh32: convert to csum_and_copy_from_user()
arm: switch to csum_and_copy_from_user()
take the dummy csum_and_copy_from_user() into net/checksum.h
default csum_and_copy_to_user(): don't bother with access_ok()
arch/alpha/include/asm/checksum.h | 3 ++-
arch/alpha/lib/csum_partial_copy.c | 6 +++---
arch/arm/include/asm/checksum.h | 14 ++++++++++++++
arch/c6x/lib/checksum.c | 22 ----------------------
arch/ia64/include/asm/checksum.h | 10 ----------
arch/ia64/lib/csum_partial_copy.c | 32 ++------------------------------
arch/m68k/include/asm/checksum.h | 3 ++-
arch/m68k/lib/checksum.c | 4 ++--
arch/nios2/include/asm/checksum.h | 2 --
arch/parisc/include/asm/checksum.h | 7 -------
arch/parisc/lib/checksum.c | 20 --------------------
arch/s390/include/asm/checksum.h | 19 -------------------
arch/sh/include/asm/checksum_32.h | 9 +++++++--
arch/sparc/include/asm/checksum.h | 1 +
arch/sparc/include/asm/checksum_32.h | 15 ++++++++++-----
arch/sparc/include/asm/checksum_64.h | 2 +-
arch/x86/include/asm/checksum.h | 2 ++
arch/x86/include/asm/checksum_32.h | 21 +++++++++++----------
arch/x86/include/asm/checksum_64.h | 12 ++----------
arch/x86/lib/csum-wrappers_64.c | 35 ++++++++++++++++++-----------------
arch/x86/um/asm/checksum.h | 20 --------------------
arch/xtensa/include/asm/checksum.h | 11 +++++++----
include/asm-generic/checksum.h | 9 ---------
include/net/checksum.h | 14 ++++----------
lib/checksum.c | 20 --------------------
25 files changed, 88 insertions(+), 225 deletions(-)
