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    SubjectRe: [PATCH 2.5] fixes for airo.c


    Thank you for your patch. Some comments about it:

    - I'd rather fix whatever is broken in the current code than going back to
    spinlocks, as they increase latency and reduce concurrency. In any case,
    please check your code. I've seen a spinlock in the interrupt handler that
    may lock the system.
    - The fix for the transmit code you mention, is about fixing the returned
    value in case of error? If not, please explain it to me as I don't see any
    other changes.
    - Where did you fix a buffer overflow?

    I submitted to Jeff an updated version just before you sent your e-mail.
    It incorporates most of your fixes expect for the possible loop-forever.
    It's more stable that the one in the current kernel tree.

    Javier Achirica

    On Fri, 18 Jul 2003, Daniel Ritz wrote:

    > in 2.4.20+ airo.c is broken and can even kill keventd. this patch fixes it:
    > - sane locking with spinlocks and irqs disabled instead of the buggy locking
    > with semaphores
    > - fix transmit code
    > - safer unload ordering of disable irq, unregister_netdev, kfree
    > - fix possible loop-forever bug
    > - fix a buffer overflow
    > a kernel 2.4 version of the patch is tested by some people with good results.
    > against 2.6.0-test1-bk. please apply.
    > rgds
    > -daniel

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