• Masahiro Yamada's avatar
    arm64: mark (__)cpus_have_const_cap as __always_inline · 02166b88
    Masahiro Yamada authored
    This prepares to move CONFIG_OPTIMIZE_INLINING from x86 to a common
    place.  We need to eliminate potential issues beforehand.
    
    If it is enabled for arm64, the following errors are reported:
    
      In file included from include/linux/compiler_types.h:68,
                       from <command-line>:
      arch/arm64/include/asm/jump_label.h: In function 'cpus_have_const_cap':
      include/linux/compiler-gcc.h:120:38: warning: asm operand 0 probably doesn't match constraints
       #define asm_volatile_goto(x...) do { asm goto(x); asm (""); } while (0)
                                            ^~~
      arch/arm64/include/asm/jump_label.h:32:2: note: in expansion of macro 'asm_volatile_goto'
        asm_volatile_goto(
        ^~~~~~~~~~~~~~~~~
      include/linux/compiler-gcc.h:120:38: error: impossible constraint in 'asm'
       #define asm_volatile_goto(x...) do { asm goto(x); asm (""); } while (0)
                                            ^~~
      arch/arm64/include/asm/jump_label.h:32:2: note: in expansion of macro 'asm_volatile_goto'
        asm_volatile_goto(
        ^~~~~~~~~~~~~~~~~
    
    Link: http://lkml.kernel.org/r/20190423034959.13525-3-yamada.masahiro@socionext.comSigned-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
    Tested-by: default avatarMark Rutland <mark.rutland@arm.com>
    Cc: Arnd Bergmann <arnd@arndb.de>
    Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
    Cc: Boris Brezillon <bbrezillon@kernel.org>
    Cc: Borislav Petkov <bp@suse.de>
    Cc: Brian Norris <computersforpeace@gmail.com>
    Cc: Christophe Leroy <christophe.leroy@c-s.fr>
    Cc: David Woodhouse <dwmw2@infradead.org>
    Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
    Cc: "H. Peter Anvin" <hpa@zytor.com>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Marek Vasut <marek.vasut@gmail.com>
    Cc: Mathieu Malaterre <malat@debian.org>
    Cc: Miquel Raynal <miquel.raynal@bootlin.com>
    Cc: Paul Mackerras <paulus@samba.org>
    Cc: Ralf Baechle <ralf@linux-mips.org>
    Cc: Richard Weinberger <richard@nod.at>
    Cc: Russell King <rmk+kernel@arm.linux.org.uk>
    Cc: Stefan Agner <stefan@agner.ch>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    02166b88
cpufeature.h 21.4 KB