Re: [PATCH v3 13/13] mmc: mmci: Add Qcom specific pio_read function.

From: Srinivas Kandagatla
Date: Wed May 28 2014 - 04:52:15 EST




On 28/05/14 09:08, Linus Walleij wrote:
On Fri, May 23, 2014 at 2:53 PM, <srinivas.kandagatla@xxxxxxxxxx> wrote:

+ if (unlikely(bytes)) {
+ unsigned char buf[4];
(...)


Please think twice about this.
http://lwn.net/Articles/70473/
http://lwn.net/Articles/420019/
http://lwn.net/Articles/182369/

Thanks for the warning.

You are right. I think having likely/unlikely is not always right here.

thanks,
srini
Yours,
Linus Walleij

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