• Julia Lawall's avatar
    ASoC: tegra: constify snd_soc_ops structures · 8a7a282b
    Julia Lawall authored
    Check for snd_soc_ops structures that are only stored in the ops field of a
    snd_soc_dai_link structure.  This field is declared const, so snd_soc_ops
    structures that have this property can be declared as const also.
    
    The semantic patch that makes this change is as follows:
    (http://coccinelle.lip6.fr/)
    
    // <smpl>
    @r disable optional_qualifier@
    identifier i;
    position p;
    @@
    static struct snd_soc_ops i@p = { ... };
    
    @ok1@
    identifier r.i;
    struct snd_soc_dai_link e;
    position p;
    @@
    e.ops = &i@p;
    
    @ok2@
    identifier r.i, e;
    position p;
    @@
    struct snd_soc_dai_link e[] = { ..., { .ops = &i@p, }, ..., };
    
    @bad@
    position p != {r.p,ok1.p,ok2.p};
    identifier r.i;
    struct snd_soc_ops e;
    @@
    e@i@p
    
    @depends on !bad disable optional_qualifier@
    identifier r.i;
    @@
    static
    +const
     struct snd_soc_ops i = { ... };
    // </smpl>
    
    The effect on the layout of the .o files is shown by the following output of
    the size command, first before then after the transformation:
    
      text    data     bss     dec     hex filename
       3143    1888     384    5415    1527 sound/soc/tegra/tegra_alc5632.o
       3191    1840     384    5415    1527 sound/soc/tegra/tegra_alc5632.o
    
       text    data     bss     dec     hex filename
       3672    2176     768    6616    19d8 sound/soc/tegra/tegra_max98090.o
       3720    2128     768    6616    19d8 sound/soc/tegra/tegra_max98090.o
    
       text    data     bss     dec     hex filename
       2770    1856     384    5010    1392 sound/soc/tegra/tegra_rt5640.o
       2818    1808     384    5010    1392 sound/soc/tegra/tegra_rt5640.o
    
       text    data     bss     dec     hex filename
       4412    2176     768    7356    1cbc sound/soc/tegra/tegra_rt5677.o
       4460    2128     768    7356    1cbc sound/soc/tegra/tegra_rt5677.o
    
       text    data     bss     dec     hex filename
       2442    1536       0    3978     f8a sound/soc/tegra/tegra_sgtl5000.o
       2490    1480       0    3970     f82 sound/soc/tegra/tegra_sgtl5000.o
    
       text    data     bss     dec     hex filename
       2105    1536       0    3641     e39 sound/soc/tegra/tegra_wm8753.o
       2153    1480       0    3633     e31 sound/soc/tegra/tegra_wm8753.o
    
       text    data     bss     dec     hex filename
       3755    1888     768    6411    190b sound/soc/tegra/tegra_wm8903.o
       3803    1840     768    6411    190b sound/soc/tegra/tegra_wm8903.o
    
       text    data     bss     dec     hex filename
       2121    1536       0    3657     e49 sound/soc/tegra/trimslice.o
       2169    1480       0    3649     e41 sound/soc/tegra/trimslice.o
    Signed-off-by: default avatarJulia Lawall <Julia.Lawall@lip6.fr>
    Signed-off-by: default avatarMark Brown <broonie@kernel.org>
    8a7a282b
tegra_rt5640.c 6.97 KB