Re: [PATCH] iwlwifi: remove redundant calls to unlikely()
From: Hamza Mahfooz <hidden>
Date: 2021-07-23 02:20:02
Also in:
linux-wireless, lkml
ping On Wed, Jun 23 2021 at 02:45:46 PM -0400, Hamza Mahfooz [off-list ref] wrote:
quoted hunk ↗ jump to hunk
As per commit a7f3d3d3600c ("dma-mapping: add unlikely hint to error path in dma_mapping_error"), dma_mapping_error now internally calls unlikely(), so we don't need to call it directly anymore. Signed-off-by: Hamza Mahfooz <redacted> --- drivers/net/wireless/intel/iwlwifi/pcie/tx.c | 10 +++++----- drivers/net/wireless/intel/iwlwifi/queue/tx.c | 10 +++++----- 2 files changed, 10 insertions(+), 10 deletions(-)diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx.cb/drivers/net/wireless/intel/iwlwifi/pcie/tx.c index 4f6c187eed69..3bf56d30f741 100644--- a/drivers/net/wireless/intel/iwlwifi/pcie/tx.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx.c@@ -1253,7 +1253,7 @@ static int iwl_fill_data_tbs(struct iwl_trans*trans, struct sk_buff *skb, dma_addr_t tb_phys = dma_map_single(trans->dev, skb->data + hdr_len, head_tb_len, DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(trans->dev, tb_phys))) + if (dma_mapping_error(trans->dev, tb_phys)) return -EINVAL; trace_iwlwifi_dev_tx_tb(trans->dev, skb, skb->data + hdr_len, tb_phys, head_tb_len);@@ -1272,7 +1272,7 @@ static int iwl_fill_data_tbs(struct iwl_trans*trans, struct sk_buff *skb, tb_phys = skb_frag_dma_map(trans->dev, frag, 0, skb_frag_size(frag), DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(trans->dev, tb_phys))) + if (dma_mapping_error(trans->dev, tb_phys)) return -EINVAL; trace_iwlwifi_dev_tx_tb(trans->dev, skb, skb_frag_address(frag), tb_phys, skb_frag_size(frag));@@ -1380,7 +1380,7 @@ static int iwl_fill_data_tbs_amsdu(structiwl_trans *trans, struct sk_buff *skb, hdr_tb_len = hdr_page->pos - start_hdr; hdr_tb_phys = dma_map_single(trans->dev, start_hdr, hdr_tb_len, DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(trans->dev, hdr_tb_phys))) + if (dma_mapping_error(trans->dev, hdr_tb_phys)) return -EINVAL; iwl_pcie_txq_build_tfd(trans, txq, hdr_tb_phys, hdr_tb_len, false);@@ -1400,7 +1400,7 @@ static int iwl_fill_data_tbs_amsdu(structiwl_trans *trans, struct sk_buff *skb, tb_phys = dma_map_single(trans->dev, tso.data, size, DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(trans->dev, tb_phys))) + if (dma_mapping_error(trans->dev, tb_phys)) return -EINVAL; iwl_pcie_txq_build_tfd(trans, txq, tb_phys,@@ -1551,7 +1551,7 @@ int iwl_trans_pcie_tx(struct iwl_trans *trans,struct sk_buff *skb, /* map the data for TB1 */ tb1_addr = ((u8 *)&dev_cmd->hdr) + IWL_FIRST_TB_SIZE; tb1_phys = dma_map_single(trans->dev, tb1_addr, tb1_len, DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(trans->dev, tb1_phys))) + if (dma_mapping_error(trans->dev, tb1_phys)) goto out_err; iwl_pcie_txq_build_tfd(trans, txq, tb1_phys, tb1_len, false);diff --git a/drivers/net/wireless/intel/iwlwifi/queue/tx.cb/drivers/net/wireless/intel/iwlwifi/queue/tx.c index 451b06069350..2b409fb33c99 100644--- a/drivers/net/wireless/intel/iwlwifi/queue/tx.c +++ b/drivers/net/wireless/intel/iwlwifi/queue/tx.c@@ -211,7 +211,7 @@ static int iwl_txq_gen2_set_tb_with_wa(structiwl_trans *trans, struct page *page; int ret; - if (unlikely(dma_mapping_error(trans->dev, phys))) + if (dma_mapping_error(trans->dev, phys)) return -ENOMEM; if (likely(!iwl_txq_crosses_4g_boundary(phys, len))) {@@ -251,7 +251,7 @@ static int iwl_txq_gen2_set_tb_with_wa(structiwl_trans *trans, phys = dma_map_single(trans->dev, page_address(page), len, DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(trans->dev, phys))) + if (dma_mapping_error(trans->dev, phys)) return -ENOMEM; ret = iwl_txq_gen2_set_tb(trans, tfd, phys, len); if (ret < 0) {@@ -405,7 +405,7 @@ static int iwl_txq_gen2_build_amsdu(structiwl_trans *trans, tb_len = hdr_page->pos - start_hdr; tb_phys = dma_map_single(trans->dev, start_hdr, tb_len, DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(trans->dev, tb_phys))) + if (dma_mapping_error(trans->dev, tb_phys)) goto out_err; /* * No need for _with_wa, this is from the TSO page and@@ -487,7 +487,7 @@ iwl_tfh_tfd *iwl_txq_gen2_build_tx_amsdu(structiwl_trans *trans, /* map the data for TB1 */ tb1_addr = ((u8 *)&dev_cmd->hdr) + IWL_FIRST_TB_SIZE; tb_phys = dma_map_single(trans->dev, tb1_addr, len, DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(trans->dev, tb_phys))) + if (dma_mapping_error(trans->dev, tb_phys)) goto out_err; /* * No need for _with_wa(), we ensure (via alignment) that the data@@ -582,7 +582,7 @@ iwl_tfh_tfd *iwl_txq_gen2_build_tx(structiwl_trans *trans, /* map the data for TB1 */ tb1_addr = ((u8 *)&dev_cmd->hdr) + IWL_FIRST_TB_SIZE; tb_phys = dma_map_single(trans->dev, tb1_addr, tb1_len, DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(trans->dev, tb_phys))) + if (dma_mapping_error(trans->dev, tb_phys)) goto out_err; /* * No need for _with_wa(), we ensure (via alignment) that the data -- 2.32.0