From 49dc9013e34b205bae9d7a5f365a3da33c508c9d Mon Sep 17 00:00:00 2001 From: Christophe JAILLET Date: Thu, 30 Dec 2021 11:40:40 +0100 Subject: [PATCH] net/smc: Use the bitmap API when applicable Using the bitmap API is less verbose than hand writing them. It also improves the semantic. Signed-off-by: Christophe JAILLET Signed-off-by: David S. Miller --- net/smc/smc_wr.c | 19 +++++-------------- 1 file changed, 5 insertions(+), 14 deletions(-) diff --git a/net/smc/smc_wr.c b/net/smc/smc_wr.c index 600ab5889227..1b09012d637a 100644 --- a/net/smc/smc_wr.c +++ b/net/smc/smc_wr.c @@ -54,11 +54,7 @@ struct smc_wr_tx_pend { /* control data for a pending send request */ /* returns true if at least one tx work request is pending on the given link */ static inline bool smc_wr_is_tx_pend(struct smc_link *link) { - if (find_first_bit(link->wr_tx_mask, link->wr_tx_cnt) != - link->wr_tx_cnt) { - return true; - } - return false; + return !bitmap_empty(link->wr_tx_mask, link->wr_tx_cnt); } /* wait till all pending tx work requests on the given link are completed */ @@ -674,9 +670,7 @@ void smc_wr_free_link(struct smc_link *lnk) smc_wr_wakeup_tx_wait(lnk); if (smc_wr_tx_wait_no_pending_sends(lnk)) - memset(lnk->wr_tx_mask, 0, - BITS_TO_LONGS(SMC_WR_BUF_CNT) * - sizeof(*lnk->wr_tx_mask)); + bitmap_zero(lnk->wr_tx_mask, SMC_WR_BUF_CNT); wait_event(lnk->wr_reg_wait, (!atomic_read(&lnk->wr_reg_refcnt))); wait_event(lnk->wr_tx_wait, (!atomic_read(&lnk->wr_tx_refcnt))); @@ -729,7 +723,7 @@ void smc_wr_free_link_mem(struct smc_link *lnk) lnk->wr_tx_compl = NULL; kfree(lnk->wr_tx_pends); lnk->wr_tx_pends = NULL; - kfree(lnk->wr_tx_mask); + bitmap_free(lnk->wr_tx_mask); lnk->wr_tx_mask = NULL; kfree(lnk->wr_tx_sges); lnk->wr_tx_sges = NULL; @@ -805,9 +799,7 @@ int smc_wr_alloc_link_mem(struct smc_link *link) GFP_KERNEL); if (!link->wr_rx_sges) goto no_mem_wr_tx_sges; - link->wr_tx_mask = kcalloc(BITS_TO_LONGS(SMC_WR_BUF_CNT), - sizeof(*link->wr_tx_mask), - GFP_KERNEL); + link->wr_tx_mask = bitmap_zalloc(SMC_WR_BUF_CNT, GFP_KERNEL); if (!link->wr_tx_mask) goto no_mem_wr_rx_sges; link->wr_tx_pends = kcalloc(SMC_WR_BUF_CNT, @@ -920,8 +912,7 @@ int smc_wr_create_link(struct smc_link *lnk) goto dma_unmap; } smc_wr_init_sge(lnk); - memset(lnk->wr_tx_mask, 0, - BITS_TO_LONGS(SMC_WR_BUF_CNT) * sizeof(*lnk->wr_tx_mask)); + bitmap_zero(lnk->wr_tx_mask, SMC_WR_BUF_CNT); init_waitqueue_head(&lnk->wr_tx_wait); atomic_set(&lnk->wr_tx_refcnt, 0); init_waitqueue_head(&lnk->wr_reg_wait); -- 2.11.0