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dma: make Open Firmware device id constant
The match_table field of the struct of_device_id is constant in <linux/of_platform.h> so it is worth to make the initialization data 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 [dan.j.williams@intel.com: resolved conflict with recent fsldma updates] Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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@ -1398,7 +1398,7 @@ static int fsldma_of_remove(struct of_device *op)
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return 0;
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}
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static struct of_device_id fsldma_of_ids[] = {
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static const struct of_device_id fsldma_of_ids[] = {
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{ .compatible = "fsl,eloplus-dma", },
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{ .compatible = "fsl,elo-dma", },
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{}
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@ -4940,7 +4940,7 @@ out_free:
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return ret;
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}
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static struct of_device_id __devinitdata ppc440spe_adma_of_match[] = {
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static const struct of_device_id ppc440spe_adma_of_match[] __devinitconst = {
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{ .compatible = "ibm,dma-440spe", },
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{ .compatible = "amcc,xor-accelerator", },
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{},
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