Re: [GIT pull] irq fixes for .39.rc

From: Linus Torvalds
Date: Wed Mar 30 2011 - 11:37:14 EST


On Wed, Mar 30, 2011 at 7:51 AM, Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:
>
> Please pull the latest irq-fixes-for-linus git tree from:
>
>   git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git irq-fixes-for-linus

Hmm. This has a fundamental merge conflict with BenH's tree that I just pulled.

You guys did different things in arch/powerpc/include/asm/qe_ic.h:

- BenH has:

- struct qe_ic *qe_ic = get_irq_desc_data(desc);
+ struct qe_ic *qe_ic = irq_desc_get_chip_data(desc);

- Thomas has:

- struct qe_ic *qe_ic = get_irq_desc_data(desc);
+ struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);

Note the "chip_data" vs "handler_data" difference.

And when I tried to figure out which one is the correct one, I see that

- qe_ic_host_map does:

irq_set_chip_data(virq, qe_ic);

- qe_ic_init does:

irq_set_handler_data(qe_ic->virq_low, qe_ic);
...
irq_set_handler_data(qe_ic->virq_high, qe_ic);

which just makes me go "Somebody is really really confused".

The whole thing may mean that both handler_data and chip_data contains
the right thing, but it still makes me go "WTF?".

Which way should I resolve it?

Linus
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