linux-stable.git/lib/atomic64_test.c, branch v3.16.78

x86/cpufeature: Carve out X86_FEATURE_*

2019-05-22T22:15:08+00:00

commit cd4d09ec6f6c12a2cc3db5b7d8876a325a53545b upstream.

Move them to a separate header and have the following
dependency:

  x86/cpufeatures.h <- x86/processor.h <- x86/cpufeature.h

This makes it easier to use the header in asm code and not
include the whole cpufeature.h and add guards for asm.

Suggested-by: H. Peter Anvin 
Signed-off-by: Borislav Petkov 
Cc: Andy Lutomirski 
Cc: Borislav Petkov 
Cc: Brian Gerst 
Cc: Denys Vlasenko 
Cc: Linus Torvalds 
Cc: Peter Zijlstra 
Cc: Thomas Gleixner 
Link: http://lkml.kernel.org/r/1453842730-28463-5-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar 
[bwh: Backported to 3.16 to avoid a dependency loop:
 - Drop some inapplicable changes
 - Move all the previously backported feature and bug flags across
 - Also change  and lib/retpoline.S to use
   
 - Also include  in , as the vdso fails to
   build without that
 - Adjust context]
Signed-off-by: Ben Hutchings

x86/headers: Don't include asm/processor.h in asm/atomic.h

2019-05-22T22:15:07+00:00

commit 153a4334c439cfb62e1d31cee0c790ba4157813d upstream.

asm/atomic.h doesn't really need asm/processor.h anymore. Everything
it uses has moved to other header files. So remove that include.

processor.h is a nasty header that includes lots of
other headers and makes it prone to include loops. Removing the
include here makes asm/atomic.h a "leaf" header that can
be safely included in most other headers.

The only fallout is in the lib/atomic tester which relied on
this implicit include. Give it an explicit include.
(the include is in ifdef because the user is also in ifdef)

Signed-off-by: Andi Kleen 
Signed-off-by: Peter Zijlstra (Intel) 
Cc: Arnaldo Carvalho de Melo 
Cc: Jiri Olsa 
Cc: Linus Torvalds 
Cc: Mike Galbraith 
Cc: Peter Zijlstra 
Cc: Stephane Eranian 
Cc: Thomas Gleixner 
Cc: Vince Weaver 
Cc: rostedt@goodmis.org
Link: http://lkml.kernel.org/r/1449018060-1742-1-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar 
[bwh: Backported to 3.16 to avoid a dependency loop; adjusted context]
Signed-off-by: Ben Hutchings

lib/atomic64_test.c: convert printk(KERN_INFO to pr_info

2014-06-04T23:54:19+00:00

Convert printk to current pr_foo() logging functions.

Also add pr_fmt based on KBUILD_MODNAME to avoid repeating prefix.  Prefix
is now "atomic64_test: "

Signed-off-by: Fabian Frederick 
Cc: Luca Barbieri 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

atomic64_test: simplify the #ifdef for atomic64_dec_if_positive() test

2012-07-31T00:25:16+00:00

Introduce CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE and use this instead
of the multitude of #if defined() checks in atomic64_test.c

Signed-off-by: Catalin Marinas 
Cc: Russell King 
Cc: Ralf Baechle 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

bug.h: add include of it to various implicit C users

2012-02-29T22:15:08+00:00

With bug.h currently living right in linux/kernel.h there
are files that use BUG_ON and friends but are not including
the header explicitly.  Fix them up so we can remove the
presence in kernel.h file.

Signed-off-by: Paul Gortmaker

atomic: use

2011-07-26T23:49:47+00:00

This allows us to move duplicated code in 
(atomic_inc_not_zero() for now) to 

Signed-off-by: Arun Sharma 
Reviewed-by: Eric Dumazet 
Cc: Ingo Molnar 
Cc: David Miller 
Cc: Eric Dumazet 
Acked-by: Mike Frysinger 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

ARM: 6213/1: atomic64_test: add ARM as supported architecture

2010-07-27T09:43:46+00:00

ARM has support for the atomic64_dec_if_positive operation
so ensure that it is tested by the atomic64_test routine.

Acked-by: Nicolas Pitre 
Signed-off-by: Will Deacon 
Signed-off-by: Russell King

lib: add s390 to atomic64_dec_if_positive archs

2010-06-04T22:21:45+00:00

Add s390 to list of architectures that have atomic64_dec_if_positive
implemented so we get rid of this warning:

lib/atomic64_test.c:129:2: warning: #warning Please implement
atomic64_dec_if_positive for your architecture, and add it to the IF above

Signed-off-by: Heiko Carstens 
Cc: Luca Barbieri 
Cc: "H. Peter Anvin" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

lib/atomic64_test: fix missing include of linux/kernel.h

2010-05-24T20:33:32+00:00

Fix a build-failure
(http://kisskb.ellerman.id.au/kisskb/buildresult/2601239/) by adding the
missing include file (linux/kernel.h) for printk and KERN_INFO.

Signed-off-by: Peter Huewe 
LKML-Reference: <201005241913.o4OJDKdf010884@imap1.linux-foundation.org>
Cc: Luca Barbieri 
Cc: "H. Peter Anvin" 
Signed-off-by: Andrew Morton 
Signed-off-by: H. Peter Anvin

x86, atomic64: In selftest, distinguish x86-64 from 586+

2010-03-01T19:51:56+00:00

The x86-64 implementation of the atomics is totally different from the
i586+ implementation, which makes it quite confusing to call it
"586+".  Also fix indentation, and add "i" for "i386" and "i586" as
used elsewhere in the kernel.

Signed-off-by: H. Peter Anvin 
Cc: Luca Barbieri 
LKML-Reference: <1267005265-27958-4-git-send-email-luca@luca-barbieri.com>