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From: Borislav Petkov <bp@suse.de>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: x86-ml <x86@kernel.org>, lkml <linux-kernel@vger.kernel.org>
Subject: [GIT PULL] x86/asm updates for v5.10
Date: Mon, 12 Oct 2020 13:05:57 +0200	[thread overview]
Message-ID: <20201012110557.GK25311@zn.tnic> (raw)

Hi Linus,

please pull two asm wrapper fixes.

Thx.

---

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://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.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(-)

-- 
Regards/Gruss,
    Boris.

SUSE Software Solutions Germany GmbH, GF: Felix Imendörffer, HRB 36809, AG Nürnberg

             reply	other threads:[~2020-10-12 11:06 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-12 11:05 Borislav Petkov [this message]
2020-10-12 18:11 ` Linus Torvalds
     [not found]   ` <CAFULd4Z1_UKN6haGbNJMi0_tGddPZcawRDfoYnLdn-Qe6UR3-Q@mail.gmail.com>
2020-10-12 18:55     ` Borislav Petkov
2020-10-12 20:29       ` Arvind Sankar
2020-10-12 18:56     ` Linus Torvalds
2020-10-12 18:59       ` Borislav Petkov
2020-10-12 19:03       ` Linus Torvalds
     [not found]         ` <CAFULd4bHpJQau5kw8J93B2Xu1J_tYhShG6eWP88vRvhwxRZmdQ@mail.gmail.com>
2020-10-12 19:33           ` Linus Torvalds
     [not found]             ` <CAFULd4YQ5dNPU5mFuT9GHNH8-UVdcHLz7NYnvPi=kmhaUk1mcw@mail.gmail.com>
2020-10-12 20:57               ` Linus Torvalds
2020-10-13  8:00                 ` Uros Bizjak
2020-10-12 20:27   ` Arvind Sankar
2020-10-13  9:41 ` [GIT PULL -v2] " Borislav Petkov
2020-10-13 20:39   ` Linus Torvalds
2020-10-13 20:47     ` Borislav Petkov
2020-10-13 20:44 ` [GIT PULL] " pr-tracker-bot

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