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| author | LABBE Corentin <clabbe.montjoie@gmail.com> | 2015-10-02 09:01:02 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-10-08 16:42:19 +0300 |
| commit | fea40451530fea9ed3efd31eb932d1855a3a6e2d (patch) | |
| tree | 3cfadb25a90928521f91d91859197261172e7612 /drivers/crypto/qce/dma.c | |
| parent | 166db195536f380c4545a8d2fca9789402464bc8 (diff) | |
| download | linux-fea40451530fea9ed3efd31eb932d1855a3a6e2d.tar.xz | |
crypto: qce - dma_map_sg can handle chained SG
The qce driver use two dma_map_sg path according to SG are chained
or not.
Since dma_map_sg can handle both case, clean the code with all
references to sg chained.
Thus removing qce_mapsg, qce_unmapsg and qce_countsg functions.
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/qce/dma.c')
| -rw-r--r-- | drivers/crypto/qce/dma.c | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/drivers/crypto/qce/dma.c b/drivers/crypto/qce/dma.c index 378cb768647f..4797e795c9b9 100644 --- a/drivers/crypto/qce/dma.c +++ b/drivers/crypto/qce/dma.c @@ -54,58 +54,6 @@ void qce_dma_release(struct qce_dma_data *dma) kfree(dma->result_buf); } -int qce_mapsg(struct device *dev, struct scatterlist *sg, int nents, - enum dma_data_direction dir, bool chained) -{ - int err; - - if (chained) { - while (sg) { - err = dma_map_sg(dev, sg, 1, dir); - if (!err) - return -EFAULT; - sg = sg_next(sg); - } - } else { - err = dma_map_sg(dev, sg, nents, dir); - if (!err) - return -EFAULT; - } - - return nents; -} - -void qce_unmapsg(struct device *dev, struct scatterlist *sg, int nents, - enum dma_data_direction dir, bool chained) -{ - if (chained) - while (sg) { - dma_unmap_sg(dev, sg, 1, dir); - sg = sg_next(sg); - } - else - dma_unmap_sg(dev, sg, nents, dir); -} - -int qce_countsg(struct scatterlist *sglist, int nbytes, bool *chained) -{ - struct scatterlist *sg = sglist; - int nents = 0; - - if (chained) - *chained = false; - - while (nbytes > 0 && sg) { - nents++; - nbytes -= sg->length; - if (!sg_is_last(sg) && (sg + 1)->length == 0 && chained) - *chained = true; - sg = sg_next(sg); - } - - return nents; -} - struct scatterlist * qce_sgtable_add(struct sg_table *sgt, struct scatterlist *new_sgl) { |