On Tue, Sep 18, 2018 at 04:47:37PM +0200, Thierry Reding wrote: > On Tue, Sep 18, 2018 at 03:18:38PM +0100, Lorenzo Pieralisi wrote: > > On Thu, Jul 12, 2018 at 07:30:41AM +0800, kbuild test robot wrote: > > > From: kbuild test robot <fengguang.wu@xxxxxxxxx> > > > > > > drivers/pci/controller/pci-tegra.c:1132:1-3: WARNING: PTR_ERR_OR_ZERO can be used > > > > > > > > > Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR > > > > > > Generated by: scripts/coccinelle/api/ptr_ret.cocci > > > > > > Fixes: 6e0832fa432e ("PCI: Collect all native drivers under drivers/pci/controller/") > > > CC: Shawn Lin <shawn.lin@xxxxxxxxxxxxxx> > > > Signed-off-by: kbuild test robot <fengguang.wu@xxxxxxxxx> > > > --- > > > > > > pci-tegra.c | 5 +---- > > > 1 file changed, 1 insertion(+), 4 deletions(-) > > > > Thierry, > > > > are you OK with this change ? I will remove the Fixes: tag since > > this does not fix anything AFAICS. > > This has been proposed several times in the past and each time Bjorn and > I have agreed that we'd rather not merge that change. I think the > original is clearer and allows the code to be more easily extended. > > I don't know if there's a way to "whitelist" certain drivers or sub- > systems where these kinds of changes are known not to be desired. Or > perhaps there's some way to trick coccinelle into not recognizing this > particular instance. > > Then again, it seems wrong to have to work around over-ambitious > semantic patches... I agree with you and Bjorn, I will drop the patches but you have a point. Certainly these patches aren't fixing anything unless I am missing something obvious. Lorenzo