linux-kernel - Re: [PATCH] genirq: Pass desc to __irq

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Message-ID: <20180325221213.ub5vurux7dqdkldd@pengutronix.de>
Date:   Mon, 26 Mar 2018 00:12:13 +0200
From:   Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     linux-kernel@...r.kernel.org, kernel@...gutronix.de
Subject: Re: [PATCH] genirq: Pass desc to __irq_free instead of irq number

Hello,

On Mon, Mar 19, 2018 at 11:52:02AM +0100, Uwe Kleine-König wrote:
> Given that irq_to_desc() is a radix_tree_lookup and the reverse
> operation is only a pointer dereference and that all callers of
> __free_irq already have the desc, pass the desc instead of the irq
> number.
> 
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
> ---
> Hello,
> 
> this is a micro optimisation I noticed while looking at the irq code.

This made it into next as 83ac4ca943affce56a2c408ddb2f5232f478fb11 and
ba63053f018721a0ad60b083e21a15e324a4a8c4. Is it right that it is there
twice? And in the Author line the - in my name is missing. Would be
great if that could be fixed up.

Something like:

	git filter-branch -f --env-filter 'test "$GIT_AUTHOR_NAME" != "Uwe Kleine König" || GIT_AUTHOR_NAME="Uwe Kleine-König"' linus/master..

should do the trick.
 
Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |