linux-kernel - [GIT PULL] x86/asm for 6.1

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Date:   Tue, 4 Oct 2022 16:06:08 +0200
From:   Borislav Petkov <bp@...e.de>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     x86-ml <x86@...nel.org>, lkml <linux-kernel@...r.kernel.org>
Subject: [GIT PULL] x86/asm for 6.1

Hi Linus,

please pull a couple of x86/asm improvements for 6.1.

Thx.

---

The following changes since commit 521a547ced6477c54b4b0cc206000406c221b4d6:

  Linux 6.0-rc6 (2022-09-18 13:44:14 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git tags/x86_asm_for_v6.1_rc1

for you to fetch changes up to fdb6649ab7c142e497539a471e573c2593b9c923:

  x86/asm/bitops: Use __builtin_ctzl() to evaluate constant expressions (2022-09-20 15:35:37 +0200)

----------------------------------------------------------------
- "Slap" the __builtin_ffs/ctzl() compiler builtins in front of the
kernel's optimized ffs()/ffz() helpers in order to make use of the
compiler's constant folding optmization passes.

----------------------------------------------------------------
Vincent Mailhol (2):
      x86/asm/bitops: Use __builtin_ffs() to evaluate constant expressions
      x86/asm/bitops: Use __builtin_ctzl() to evaluate constant expressions

 arch/x86/include/asm/bitops.h | 54 ++++++++++++++++++++++++++-----------------
 1 file changed, 33 insertions(+), 21 deletions(-)


-- 
Regards/Gruss,
    Boris.

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