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xen
magic_ioport_compat.patch
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File magic_ioport_compat.patch of Package xen
Make our PV drivers work with older hosts that do not recognize the new PV driver protocol. Signed-off-by: K. Y. Srinivasan <ksrinivasan@novell.com> Index: xen-4.1.2-testing/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c =================================================================== --- xen-4.1.2-testing.orig/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c +++ xen-4.1.2-testing/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c @@ -321,7 +321,10 @@ static int check_platform_magic(struct d if (magic != XEN_IOPORT_MAGIC_VAL) { err = "unrecognised magic value"; - goto no_dev; + /* + * Older backend; just return 0 to be compatible. + */ + return 0; } protocol = inb(XEN_IOPORT_PROTOVER);
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