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    SubjectRe: [PATCH 2/14] kexec: i8259-sysfs.x86_64
    Andrew Morton <> writes:

    > (Eric W. Biederman) wrote:
    > >
    > > The i8259 does not yet have sysfs support on x86_64
    > umm, yes it does. It went into Linus's tree post

    Sorry I missed that one. I'm surprised I did not get a reject
    when I rebuilt that one against mm2. It appears I was in a bit
    of a rush.

    Or why it would be nice for this code to be merged :)

    > I added the below make-it-compile patch. Please check it.

    Please just remove the previous patch and it's fix from your patchset,
    as together they are a noop.

    The following patch simply adds a shutdown method to the x86_64
    i8259 code. That is what I care about in the context of kexec.

    While testing this I found a minor ide bug. I will have a patch for
    that in a second.


    diff -uNr linux- linux-
    --- linux- Sun Aug 22 20:56:01 2004
    +++ linux- Sun Aug 22 21:00:23 2004
    @@ -416,10 +416,24 @@
    return 0;

    +static int i8259A_shutdown(struct sys_device *dev)
    + /* Put the i8259A into a quiescent state that
    + * the kernel initialization code can get it
    + * out of.
    + */
    + outb(0xff, 0x21); /* mask all of 8259A-1 */
    + outb(0xff, 0xA1); /* mask all of 8259A-1 */
    + return 0;
    static struct sysdev_class i8259_sysdev_class = {
    .suspend = i8259A_suspend,
    .resume = i8259A_resume,
    + .shutdown = i8259A_shutdown,

    static struct sys_device device_i8259A = {

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