Re: [PATCH v2 1/4] device: provide devm_krealloc_array()

From: Greg KH
Date: Sat Nov 14 2020 - 11:18:03 EST


On Sat, Nov 14, 2020 at 03:46:41PM +0000, Jonathan Cameron wrote:
> On Mon, 2 Nov 2020 15:22:25 +0100
> Bartosz Golaszewski <brgl@xxxxxxxx> wrote:
>
> > From: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
> >
> > When allocating an array of elements, users should check for
> > multiplication overflow or preferably use one of the provided helpers
> > like: devm_kmalloc_array().
> >
> > This provides devm_krealloc_array() for users who want to reallocate
> > managed arrays.
> >
> > Signed-off-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
>
> +CC Greg KH.
>
> As this is going into a very generic place I'd like a relevant ack.
> That file is a bit of a wild west for acks, but Greg seems most
> appropriate person.
>
> So Greg, any comments on this one?

As there is only 1 user of this function in the patch series, you don't
save any extra code space here, I don't think this is worth it.

We are seeing less and less gains from these new devm_* additions, and
only more confusion and problems with them. So perhaps don't add this?
I don't think it is needed.

thanks,

greg k-h