Patch "bitops: Add clear/set_bit32() to linux/bitops.h" has been added to the 4.14-stable tree
Subsystems (2)
This is a note to let you know that I've just added the patch titled
bitops: Add clear/set_bit32() to linux/bitops.h
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
bitops-add-clear-set_bit32-to-linux-bitops.h.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.
Quoted 1 line
From
cbe96375025e14fc76f9ed42ee5225120d7210f8Mon Sep 17 00:00:00 2001
From: Andi Kleen <[email protected]>
Date: Fri, 13 Oct 2017 14:56:41 -0700
Subject: bitops: Add clear/set_bit32() to linux/bitops.h
From: Andi Kleen <[email protected]>
commit cbe96375025e14fc76f9ed42ee5225120d7210f8 upstream.
Add two simple wrappers around set_bit/clear_bit() that accept the common case of an u32 array. This avoids writing casts in all callers.
--- include/linux/bitops.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+)
include/linux/bitops.h +26 -0
@@ -228,6 +228,32 @@ static inline unsigned long __ffs64(u64return __ffs ((unsigned long )word); } +/* +* clear_bit32 - Clear a bit in memory for u32 array +* @nr: Bit to clear +* @addr: u32 * address of bitmap +* +* Same as clear_bit, but avoids needing casts for u32 arrays. +*/ + +static __always_inline void clear_bit32(long nr, volatile u32 *addr) +{ +clear_bit (nr, (volatile unsigned long *)addr); +} + +/* +* set_bit32 - Set a bit in memory for u32 array +* @nr: Bit to clear +* @addr: u32 * address of bitmap +* +* Same as set_bit, but avoids needing casts for u32 arrays. +*/ + +static __always_inline void set_bit32(long nr, volatile u32 *addr) +{ +set_bit (nr, (volatile unsigned long *)addr); +} +#ifdef __KERNEL__#ifndef set_mask_bits
Patches currently in stable-queue which might be from [email protected] are
queue-4.14/bitops-add-clear-set_bit32-to-linux-bitops.h.patch queue-4.14/x86-fpu-remove-the-explicit-clearing-of-xsave-dependent-features.patch queue-4.14/x86-cpuid-add-generic-table-for-cpuid-dependencies.patch queue-4.14/x86-cpuid-prevent-out-of-bound-access-in-do_clear_cpu_cap.patch queue-4.14/x86-fpu-parse-clearcpuid-as-early-xsave-argument.patch queue-4.14/x86-fpu-make-xsave-check-the-base-cpuid-features-before-enabling.patch