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    PCI: fix sysfs rom file creation for BIOS ROM shadows · 40ee9e9f
    Jesse Barnes 提交于
    At one time, if a BIOS ROM shadow was detected for the boot video
    device (stored at offset 0xc0000), we'd set a special resource flag,
    IORESOURCE_ROM_SHADOW, so that the sysfs ROM file code could handle
    it properly.  That broke along the way somewhere though, so current
    kernels will be missing 'rom' files in sysfs if the video device
    doesn't have an explicit ROM BAR.
    
    This patch fixes the regression by moving the video fixup quirk to a
    little later in the boot cycle (to avoid having its work undone by
    PCI resource allocation) and checking in the PCI sysfs code whether
    a rom file should be created due to a shadow resource, which is also
    moved to a little later in the boot cycle so it will occur after the
    video fixup.  Tested and works on my i386 test box.
    Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
    Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
    40ee9e9f
pci-sysfs.c 17.4 KB