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Subject[GIT PULL] x86/asm updates for v5.10
Hi Linus,

please pull two asm wrapper fixes.



The following changes since commit f75aef392f869018f78cfedf3c320a6b3fcfda6b:

Linux 5.9-rc3 (2020-08-30 16:01:54 -0700)

are available in the Git repository at:

git:// tags/x86_asm_for_v5.10

for you to fetch changes up to aa5cacdc29d76a005cbbee018a47faa6e724dd2d:

x86/asm: Replace __force_order with a memory clobber (2020-10-01 10:31:48 +0200)

* Use XORL instead of XORQ to avoid a REX prefix and save some bytes in
the .fixup section, by Uros Bizjak.

* Replace __force_order dummy variable with a memory clobber to fix LLVM
requiring a definition for former and to prevent memory accesses from
still being cached/reordered, by Arvind Sankar.

Arvind Sankar (1):
x86/asm: Replace __force_order with a memory clobber

Uros Bizjak (1):
x86/uaccess: Use XORL %0,%0 in __get_user_asm()

arch/x86/boot/compressed/pgtable_64.c | 9 ---------
arch/x86/include/asm/special_insns.h | 28 +++++++++++++++-------------
arch/x86/include/asm/uaccess.h | 2 +-
arch/x86/kernel/cpu/common.c | 4 ++--
4 files changed, 18 insertions(+), 25 deletions(-)


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