[dpdk-dev] [PATCH 09/18] drivers: net: qede: fix strncpy constant and NUL
Bruce Richardson
bruce.richardson at intel.com
Tue May 8 21:53:15 CEST 2018
On Tue, May 08, 2018 at 05:59:47PM +0000, dev-bounces at dpdk.org wrote:
>
>
> > -----Original Message-----
> > From: dev <dev-bounces at dpdk.org> On Behalf Of Andy Green
> > Sent: Monday, May 7, 2018 11:30 PM
> > To: dev at dpdk.org
> > Subject: [dpdk-dev] [PATCH 09/18] drivers: net: qede: fix strncpy constant and
> > NUL
> >
> >
> > ---
> > drivers/net/qede/base/ecore_int.c | 10 ++++++----
> > 1 file changed, 6 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/net/qede/base/ecore_int.c
> > b/drivers/net/qede/base/ecore_int.c
> > index f43781ba4..c809d84ef 100644
> > --- a/drivers/net/qede/base/ecore_int.c
> > +++ b/drivers/net/qede/base/ecore_int.c
> > @@ -1103,10 +1103,12 @@ static enum _ecore_status_t
> > ecore_int_deassertion(struct ecore_hwfn *p_hwfn,
> > OSAL_SNPRINTF(bit_name, 30,
> > p_aeu->bit_name,
> > num);
> > - else
> > - OSAL_STRNCPY(bit_name,
> > - p_aeu->bit_name,
> > - 30);
> > + else {
> > + strncpy(bit_name,
> > + p_aeu->bit_name,
> > + sizeof(bit_name) - 1);
> > + bit_name[sizeof(bit_name) - 1]
> > = '\0';
> > + }
>
> I think you can retain OSAL_STRNCPY and just replace 30 with 'bit_name[sizeof(bit_name) - 1' and then set last byte with '\0' just like you did.
Can that actually be fixed inside OSAL_STRNCPY itself, rather than having
each use needing to explicitly null-terminate?
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