On Sun, Dec 31, 2017 at 04:20:45PM -0500, Alan Stern wrote: > On Sun, 31 Dec 2017, Himanshu Jha wrote: > > > Use dma_zalloc_coherent for allocating zeroed > > memory and remove unnecessary memset function. > > > > Done using Coccinelle. > > Generated-by: scripts/coccinelle/api/alloc/kzalloc-simple.cocci > > 0-day tested with no failures. > > > > Suggested-by: Luis R. Rodriguez <mcg...@kernel.org> > > Signed-off-by: Himanshu Jha <himanshujha199...@gmail.com> > > --- > > v2: > > -align argumenst as they were before applying the SmPL rule. > > For the UHCI portion: > > Acked-by: Alan Stern <st...@rowland.harvard.edu> > > But there is something pecular about the patch... > > > drivers/usb/host/uhci-hcd.c | 7 +++---- > > drivers/usb/host/xhci-mem.c | 7 ++----- > > 2 files changed, 5 insertions(+), 9 deletions(-) > > > > diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c > > index f5c9021..ac53398 100644 > > --- a/drivers/usb/host/uhci-hcd.c > > +++ b/drivers/usb/host/uhci-hcd.c > > @@ -600,15 +600,14 @@ static int uhci_start(struct usb_hcd *hcd) > > uhci->dentry = dentry; > > #endif > > > > - uhci->frame = dma_alloc_coherent(uhci_dev(uhci), > > - UHCI_NUMFRAMES * sizeof(*uhci->frame), > > - &uhci->frame_dma_handle, GFP_KERNEL); > > + uhci->frame = dma_zalloc_coherent(uhci_dev(uhci), > > + UHCI_NUMFRAMES * sizeof(*uhci->frame), > > + &uhci->frame_dma_handle, GFP_KERNEL); > > The second and third "changed" lines here actually are identical. What > program would produce a diff file showing that they were changed?
I'm sorry, I can't understand the problem. The patch was generated by cocci script specified above and then you told me to change the whitespace scheme as it was before. It is also 0-day tested as specified above. It's also free from warnings reported by checkpatch. If are still confused please take a look at the rule : https://lkml.org/lkml/2017/12/26/205 which will be soon merged to the linux-next tree. Thanks Himanshu Jha
