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crypto: caam - move DMA mask selection into a function

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Exactly the same code to figure out DMA mask is repeated twice in the
driver code. To avoid repetition, move that logic into a standalone
subroutine in intern.h. While at it re-shuffle the code to make it
more readable with early returns.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>
Cc: Chris Spencer <christopher.spencer@sea.co.uk>
Cc: Cory Tusar <cory.tusar@zii.aero>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Horia Geantă <horia.geanta@nxp.com>
Cc: Aymen Sghaier <aymen.sghaier@nxp.com>
Cc: Leonard Crestez <leonard.crestez@nxp.com>
Cc: linux-crypto@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Andrey Smirnov
2019-08-20 13:23:47 -07:00
committed by Herbert Xu
parent 671e50384e
commit 70c0cda27a
3 changed files with 22 additions and 24 deletions
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15
drivers/crypto/caam/jr.c
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@@ -543,20 +543,7 @@ static int caam_jr_probe(struct platform_device *pdev)
jrpriv->rregs = (struct caam_job_ring __iomem __force *)ctrl;
if (sizeof(dma_addr_t) == sizeof(u64)) {
if (caam_dpaa2)
error = dma_set_mask_and_coherent(jrdev,
DMA_BIT_MASK(49));
else if (of_device_is_compatible(nprop,
"fsl,sec-v5.0-job-ring"))
error = dma_set_mask_and_coherent(jrdev,
DMA_BIT_MASK(40));
else
error = dma_set_mask_and_coherent(jrdev,
DMA_BIT_MASK(36));
} else {
error = dma_set_mask_and_coherent(jrdev, DMA_BIT_MASK(32));
}
error = dma_set_mask_and_coherent(jrdev, caam_get_dma_mask(jrdev));
if (error) {
dev_err(jrdev, "dma_set_mask_and_coherent failed (%d)\n",
error);