[AMD Public Use] > -----Original Message----- > From: Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> > Sent: Tuesday, November 3, 2020 1:53 AM > To: Koenig, Christian <Christian.Koenig@xxxxxxx> > Cc: Alex Deucher <alexdeucher@xxxxxxxxx>; Deepak R Varma > <mh12gx2825@xxxxxxxxx>; David Airlie <airlied@xxxxxxxx>; LKML <linux- > kernel@xxxxxxxxxxxxxxx>; Maling list - DRI developers <dri- > devel@xxxxxxxxxxxxxxxxxxxxx>; Melissa Wen <melissa.srw@xxxxxxxxx>; > amd-gfx list <amd-gfx@xxxxxxxxxxxxxxxxxxxxx>; Daniel Vetter > <daniel@xxxxxxxx>; Daniel Vetter <daniel.vetter@xxxxxxxx>; Deucher, > Alexander <Alexander.Deucher@xxxxxxx> > Subject: Re: [PATCH] drm/amdgpu: do not initialise global variables to 0 or > NULL > > On Mon, Nov 02, 2020 at 09:06:21PM +0100, Christian König wrote: > > Am 02.11.20 um 20:43 schrieb Alex Deucher: > > > On Mon, Nov 2, 2020 at 1:42 PM Deepak R Varma > <mh12gx2825@xxxxxxxxx> wrote: > > > > Initializing global variable to 0 or NULL is not necessary and > > > > should be avoided. Issue reported by checkpatch script as: > > > > ERROR: do not initialise globals to 0 (or NULL). > > > I agree that this is technically correct, but a lot of people don't > > > seem to know that so we get a lot of comments about this code for > > > the variables that are not explicitly set. Seems less confusing to > > > initialize them even if it not necessary. I don't have a > > > particularly strong opinion on it however. > > > > Agree with Alex. > > > > Especially for the module parameters we should have a explicit init > > value for documentation purposes, even when it is 0. > > Why is this one tiny driver somehow special compared to the entire rest of > the kernel? (hint, it isn't...) > > Please follow the normal coding style rules, there's no reason to ignore them > unless you like to constantly reject patches like this that get sent to you. > I'll apply the patch, but as a data point, this is the first time I've gotten a patch to make this change. I get several bug reports or patches every year to explicitly set values to global variables because users assume they are not initialized. So it will always be a trade off as to which patches you want to NACK. Alex _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
