Re: [PATCH v2] devres: use MACRO instead of function for devm_ioremap

From: Greg KH
Date: Tue Dec 19 2017 - 03:46:47 EST


On Sat, Nov 25, 2017 at 05:23:33PM +0800, Yisheng Xie wrote:
> Default ioremap is ioremap_nocache, so devm_ioremap has the same function
> with devm_ioremap_nocache, which may just be killed. However, there are
> many places which use devm_ioremap_nocache, while many use devm_ioremap.
>
> This patch is to use MACRO for devm_ioremap, which will reduce the size of
> devres.o from 206824 Bytes to 203768 Bytes.

Ok, the idea is good, but why not just get rid of the callers of
devm_ioremap_nocache() instead and have them call devm_ioremap() if they
really are the same thing? No need to keep a macro around for the
duplicate thing, just delete the one and things are much better.

thanks,

greg k-h