• Ingo Molnar's avatar
    x86/boot: Fix memremap() related build failure · 693bf0aa
    Ingo Molnar authored
    The following commit:
    
      5997efb9 ("x86/boot: Use memremap() to map the MPF and MPC data")
    
    causes new build failures on certain randconfigs:
    
      drivers/sfi/sfi_core.c: In function ‘sfi_map_memory’:
      drivers/sfi/sfi_core.c:104:10: error: implicit declaration of function ‘memremap’ [-Werror=implicit-function-declaration]
      drivers/sfi/sfi_core.c:104:31: error: ‘MEMREMAP_WB’ undeclared (first use in this function)
    
    This is a case of parasitic header dependencies: the sfi_core.c file indirectly
    includes <linux/io.h> for typical - but not all configs.
    
    Including <linux/io.h> explicitly solves the build failure.
    
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: arnd@arndb.de
    Cc: aryabinin@virtuozzo.com
    Cc: bp@alien8.de
    Cc: bp@suse.de
    Cc: brijesh.singh@amd.com
    Cc: corbet@lwn.net
    Cc: dvyukov@google.com
    Cc: dyoung@redhat.com
    Cc: glider@google.com
    Cc: konrad.wilk@oracle.com
    Cc: linux-tip-commits@vger.kernel.org
    Cc: luto@kernel.org
    Cc: lwoodman@redhat.com
    Cc: matt@codeblueprint.co.uk
    Cc: mst@redhat.com
    Cc: pbonzini@redhat.com
    Cc: riel@redhat.com
    Cc: rkrcmar@redhat.com
    Cc: thomas.lendacky@amd.com
    Cc: toshi.kani@hpe.com
    Link: http://lkml.kernel.org/r/20170720092307.6xslahuaclmsiffe@gmail.comSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
    693bf0aa
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