Messages in this thread | | | Date | Sun, 29 Jul 2018 13:38:06 +0200 | From | Pavel Machek <> | Subject | Re: [PATCH v2] net: dsa: Remove VLA usage |
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Hi!
> We avoid 2 VLAs by using a pre-allocated field in dsa_switch. We also > try to avoid dynamic allocation whenever possible (when using fewer than > bits-per-long ports, which is the common case). > > Link: http://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com > Link: http://lkml.kernel.org/r/20180505185145.GB32630@lunn.ch > Signed-off-by: Salvatore Mesoraca <s.mesoraca16@gmail.com> > [kees: tweak commit subject and message slightly] > Signed-off-by: Kees Cook <keescook@chromium.org> > --- > include/net/dsa.h | 3 +++ > net/dsa/dsa2.c | 14 ++++++++++++++ > net/dsa/switch.c | 22 ++++++++++------------ > 3 files changed, 27 insertions(+), 12 deletions(-) > > diff --git a/include/net/dsa.h b/include/net/dsa.h > index fdbd6082945d..461e8a7661b7 100644 > --- a/include/net/dsa.h > +++ b/include/net/dsa.h > @@ -259,6 +259,9 @@ struct dsa_switch { > /* Number of switch port queues */ > unsigned int num_tx_queues; > > + unsigned long *bitmap; > + unsigned long _bitmap;
This looks rather confusing. _bitmap -> bitmap_data? bitmap_bits?
Thanks, Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html [unhandled content-type:application/pgp-signature] | |