From 1b30b989cbea4052302bc304cc6179ee2f33ea9b Mon Sep 17 00:00:00 2001 From: Vakul Garg Date: Fri, 22 Mar 2019 02:00:35 +0000 Subject: [PATCH] crypto: caam/jr - Removed redundant vars from job ring private data For each job ring, the variable 'ringsize' is initialised but never used. Similarly variables 'inp_ring_write_index' and 'head' always track the same value and instead of 'inp_ring_write_index', caam_jr_enqueue() can use 'head' itself. Both these variables have been removed. Signed-off-by: Vakul Garg Signed-off-by: Herbert Xu --- drivers/crypto/caam/intern.h | 2 -- drivers/crypto/caam/jr.c | 6 +----- 2 files changed, 1 insertion(+), 7 deletions(-) diff --git a/drivers/crypto/caam/intern.h b/drivers/crypto/caam/intern.h index 48d62e020599..3392615dc91b 100644 --- a/drivers/crypto/caam/intern.h +++ b/drivers/crypto/caam/intern.h @@ -49,10 +49,8 @@ struct caam_drv_private_jr { atomic_t tfm_count ____cacheline_aligned; /* Job ring info */ - int ringsize; /* Size of rings (assume input = output) */ struct caam_jrentry_info *entinfo; /* Alloc'ed 1 per ring entry */ spinlock_t inplock ____cacheline_aligned; /* Input ring index lock */ - int inp_ring_write_index; /* Input index "tail" */ u32 inpring_avail; /* Number of free entries in input ring */ int head; /* entinfo (s/w ring) head index */ dma_addr_t *inpring; /* Base of input ring, alloc DMA-safe */ diff --git a/drivers/crypto/caam/jr.c b/drivers/crypto/caam/jr.c index d1021026f5b2..e95f82778fa1 100644 --- a/drivers/crypto/caam/jr.c +++ b/drivers/crypto/caam/jr.c @@ -358,7 +358,7 @@ int caam_jr_enqueue(struct device *dev, u32 *desc, head_entry->cbkarg = areq; head_entry->desc_addr_dma = desc_dma; - jrp->inpring[jrp->inp_ring_write_index] = cpu_to_caam_dma(desc_dma); + jrp->inpring[head] = cpu_to_caam_dma(desc_dma); /* * Guarantee that the descriptor's DMA address has been written to @@ -367,8 +367,6 @@ int caam_jr_enqueue(struct device *dev, u32 *desc, */ smp_wmb(); - jrp->inp_ring_write_index = (jrp->inp_ring_write_index + 1) & - (JOBR_DEPTH - 1); jrp->head = (head + 1) & (JOBR_DEPTH - 1); /* @@ -434,7 +432,6 @@ static int caam_jr_init(struct device *dev) jrp->entinfo[i].desc_addr_dma = !0; /* Setup rings */ - jrp->inp_ring_write_index = 0; jrp->out_ring_read_index = 0; jrp->head = 0; jrp->tail = 0; @@ -444,7 +441,6 @@ static int caam_jr_init(struct device *dev) wr_reg32(&jrp->rregs->inpring_size, JOBR_DEPTH); wr_reg32(&jrp->rregs->outring_size, JOBR_DEPTH); - jrp->ringsize = JOBR_DEPTH; jrp->inpring_avail = JOBR_DEPTH; spin_lock_init(&jrp->inplock); -- 2.30.2