RE: clean up kernel_{read,write} & friends v2

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> -----Original Message-----
> From: Al Viro <viro@xxxxxxxxxxxxxxxx> On Behalf Of Al Viro
> Sent: Thursday, May 28, 2020 4:06 PM
> To: Matthew Wilcox <willy@xxxxxxxxxxxxx>
> Cc: Joe Perches <joe@xxxxxxxxxxx>; Linus Torvalds <torvalds@linux-
> foundation.org>; Christoph Hellwig <hch@xxxxxx>; Ian Kent
> <raven@xxxxxxxxxx>; David Howells <dhowells@xxxxxxxxxx>; Linux
> Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>; linux-fsdevel <linux-
> fsdevel@xxxxxxxxxxxxxxx>; LSM List <linux-security-
> module@xxxxxxxxxxxxxxx>; NetFilter <netfilter-devel@xxxxxxxxxxxxxxx>;
> Deucher, Alexander <Alexander.Deucher@xxxxxxx>; David Airlie
> <airlied@xxxxxxxx>
> Subject: Re: clean up kernel_{read,write} & friends v2
> 
> On Thu, May 28, 2020 at 12:44:41PM -0700, Matthew Wilcox wrote:
> > On Thu, May 28, 2020 at 08:33:40PM +0100, Al Viro wrote:
> > > On Thu, May 28, 2020 at 12:22:08PM -0700, Joe Perches wrote:
> > >
> > > > Hard limits at 80 really don't work well, especially with some of
> > > > the 25+ character length identifiers used today.
> > >
> > > IMO any such identifier is a good reason for a warning.
> > >
> > > The litmus test is actually very simple: how unpleasant would it be
> > > to mention the identifiers while discussing the code over the phone?
> >
> > Here's a good example of a function which should be taken out and shot:
> >
> > int
> amdgpu_atombios_get_leakage_vddc_based_on_leakage_params(struct
> > amdgpu_devic e *adev, ...
> >         switch (frev) {
> >         case 2:
> >                 switch (crev) {
> > ...
> >                         if (profile->ucElbVDDC_Num > 0) {
> >                                 for (i = 0; i < profile->ucElbVDDC_Num; i++) {
> >                                         if (vddc_id_buf[i] == virtual_voltage_id) {
> >                                                 for (j = 0; j < profile->ucLeakageBinNum; j++) {
> >                                                         if (vbios_voltage_id <= leakage_bin[j]) {
> >                                                                 *vddc
> > = vddc_buf[j * profile->ucElbVDDC_Num + i];
> >
> > I mean, I get it that AMD want to show off just how studly a monitor
> > they support, but good grief ...
> 
> I must respectfully disagree.  It clearly needs to be hanged, drawn and
> quartered...

You found it necessary to add me to a random thread with no context to complain about the coding style?  How about sending a patch to clean it up if you find it that unsavory.

Alex




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