Messages in this thread | | | Date | Tue, 2 Dec 2014 22:58:11 +0800 | From | Herbert Xu <> | Subject | Re: [PATCH 2/8 v2] sparc64: replace memset by memzero_explicit |
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On Sun, Nov 30, 2014 at 06:03:43PM +0100, Julia Lawall wrote: > From: Julia Lawall <Julia.Lawall@lip6.fr> > > Memset on a local variable may be removed when it is called just before the > variable goes out of scope. Using memzero_explicit defeats this > optimization. A simplified version of the semantic patch that makes this > change is as follows: (http://coccinelle.lip6.fr/) > > // <smpl> > @@ > identifier x; > type T; > @@ > > { > ... when any > T x[...]; > ... when any > when exists > - memset > + memzero_explicit > (x, > -0, > ...) > ... when != x > when strict > } > // </smpl> > > This change was suggested by Daniel Borkmann <dborkman@redhat.com> > > Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Applied patches 2, 3, 6, 7. -- Email: Herbert Xu <herbert@gondor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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