Re: [RESEND PATCH] Fix ps3disk: use memcpy_{from,to}_bvec index
From: Greg Kroah-Hartman
Date: Mon Nov 17 2025 - 07:52:20 EST
On Mon, Nov 17, 2025 at 10:47:49AM +0100, Geert Uytterhoeven wrote:
> Hi Greg,
>
> On Sun, 16 Nov 2025 at 13:14, Greg Kroah-Hartman
> <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> > On Fri, Nov 14, 2025 at 03:30:33PM +0100, Rene Rebe wrote:
> > > With 6e0a48552b8c (ps3disk: use memcpy_{from,to}_bvec) converting
> > > ps3disk to new bvec helpers, incrementing the offset was accidently
> > > lost, corrupting consecutive buffers. Restore index for non-corrupted
> > > data transfers.
> > >
> > > Fixes: 6e0a48552b8c (ps3disk: use memcpy_{from,to}_bvec)
> > >
> > > Signed-off-by: René Rebe <rene@xxxxxxxxxx>
> > >
> > > --- a/drivers/block/ps3disk.c 2023-08-07 17:40:55.200957746 +0200
> > > +++ b/drivers/block/ps3disk.c 2023-08-07 17:46:39.702964129 +0200
> > > @@ -85,10 +93,14 @@
> > > struct bio_vec bvec;
> > >
> > > rq_for_each_segment(bvec, req, iter) {
> > > + dev_dbg(&dev->sbd.core, "%s:%u: %u sectors from %llu\n",
> > > + __func__, __LINE__, bio_sectors(iter.bio),
> >
> > In the future, please note that all dev_dbg() calls have __func__ built
> > into them, and I think __LINE__ as well, so there's no need to ever add
> > that to the output. Take a look at the documentation for more details
> > on how to see that in the log.
>
> That does not seem to be true in v6.18-rc6: the function name and line
> number are not included.
What changed to remove them? Look at
Documentation/admin-guide/dynamic-debug-howto.rst for how to enable both
of these for any dynamic debug message in the kernel.
Does that not work properly here?
thanks,
greg k-h