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authorMárton Németh <nm127@freemail.hu>2010-01-10 07:40:02 -0500
committerJens Axboe <jens.axboe@oracle.com>2010-01-11 08:31:27 -0500
commit47483e25205f1f8d79784f0f7c733941bc080ec0 (patch)
tree04107d64ec4e07fb6362e8055ed4a6f36a1c6f49 /tools/perf/design.txt
parentec9c42ec793d428e99fdd219867b31932034b138 (diff)
block: make virtio device id constant
The id_table field of the struct virtio_driver is constant in <linux/virtio.h> so it is worth to make id_table also constant. The semantic match that finds this kind of pattern is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ disable decl_init,const_decl_init; identifier I1, I2, x; @@ struct I1 { ... const struct I2 *x; ... }; @s@ identifier r.I1, y; identifier r.x, E; @@ struct I1 y = { .x = E, }; @c@ identifier r.I2; identifier s.E; @@ const struct I2 E[] = ... ; @depends on !c@ identifier r.I2; identifier s.E; @@ + const struct I2 E[] = ...; // </smpl> Signed-off-by: Márton Németh <nm127@freemail.hu> Cc: Julia Lawall <julia@diku.dk> Cc: cocci@diku.dk Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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