[PATCH] evh_bytechan: fix out of bounds accesses

[Stephen Rothwell]

Hi all,

On Thu, 16 Jan 2020 11:37:14 +1100 Stephen Rothwell <sfr at canb.auug.org.au> wrote:
>
> On Wed, 15 Jan 2020 14:01:35 -0600 Scott Wood <swood at redhat.com> wrote:
> >
> > On Thu, 2020-01-16 at 06:42 +1100, Stephen Rothwell wrote:  
> > > Hi Timur,
> > > 
> > > On Wed, 15 Jan 2020 07:25:45 -0600 Timur Tabi <timur at kernel.org> wrote:    
> > > > On 1/14/20 12:31 AM, Stephen Rothwell wrote:    
> > > > > +/**
> > > > > + * ev_byte_channel_send - send characters to a byte stream
> > > > > + * @handle: byte stream handle
> > > > > + * @count: (input) num of chars to send, (output) num chars sent
> > > > > + * @bp: pointer to chars to send
> > > > > + *
> > > > > + * Returns 0 for success, or an error code.
> > > > > + */
> > > > > +static unsigned int ev_byte_channel_send(unsigned int handle,
> > > > > +	unsigned int *count, const char *bp)      
> > > > 
> > > > Well, now you've moved this into the .c file and it is no longer 
> > > > available to other callers.  Anything wrong with keeping it in the .h
> > > > file?    
> > > 
> > > There are currently no other callers - are there likely to be in the
> > > future?  Even if there are, is it time critical enough that it needs to
> > > be inlined everywhere?    
> > 
> > It's not performance critical and there aren't likely to be other users --
> > just a matter of what's cleaner.  FWIW I'd rather see the original patch,
> > that keeps the raw asm hcall stuff as simple wrappers in one place.  
> 
> And I don't mind either way :-)
> 
> I just want to get rid of the warnings.

Any progress with this?
-- 
Cheers,
Stephen Rothwell
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 488 bytes
Desc: OpenPGP digital signature
URL: <http://lists.ozlabs.org/pipermail/linuxppc-dev/attachments/20200221/a19700f7/attachment.sig>