• Vivek Goyal's avatar
    [PATCH] i386: make apic probe function non-init · e96763d6
    Vivek Goyal authored
    o struct genapic contains pointer to probe() function which is of type
      __init. Hence MODPOST generates warning if kernel is compiled with
      CONFIG_RELOCATABLE=y for i386.
    
    WARNING: vmlinux - Section mismatch: reference to .init.text: from .data between 'apic_summit' (at offset 0xc058b504) and 'apic_bigsmp'
    WARNING: vmlinux - Section mismatch: reference to .init.text: from .data between 'apic_bigsmp' (at offset 0xc058b5a4) and 'cpu.4471'
    WARNING: vmlinux - Section mismatch: reference to .init.text: from .data between 'apic_es7000' (at offset 0xc058b644) and 'apic_default'
    WARNING: vmlinux - Section mismatch: reference to .init.text: from .data between 'apic_default' (at offset 0xc058b6e4) and 'interrupt'
    
    o One of the possible options is to put special case check in MODPOST to
      not emit warnings for this case but I think it is not a very good option
      in terms of maintenance.
    
    o Another option is to make probe() function non __init. Anyway this function
      is really small so not freeing this memory after init is not a big deal.
      Secondly, from a programming perspective, probably genapic should not
      provide pointers to functions which have been freed as genapic is non
      __init and is used even after initialization is complete.
    Signed-off-by: default avatarVivek Goyal <vgoyal@in.ibm.com>
    Signed-off-by: default avatarAndi Kleen <ak@suse.de>
    Cc: "Eric W. Biederman" <ebiederm@xmission.com>
    Cc: Andi Kleen <ak@suse.de>
    Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
    e96763d6
summit.c 668 Bytes