From b86dd74f8c73212db4c4c9349d46ce2350fb8106 Mon Sep 17 00:00:00 2001 From: Sara Sharon Date: Thu, 29 Sep 2016 15:16:03 +0300 Subject: [PATCH] iwlwifi: mvm: change iwl_mvm_tx_csum to return value Currently the function changes the TX cmd itself. Make it more generic by returning a value, as preperation to the new TX cmd. Signed-off-by: Sara Sharon Signed-off-by: Luca Coelho --- drivers/net/wireless/intel/iwlwifi/mvm/tx.c | 23 ++++++++++++----------- 1 file changed, 12 insertions(+), 11 deletions(-) diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c index 66957ac..73a90d4 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c @@ -102,14 +102,13 @@ iwl_mvm_bar_check_trigger(struct iwl_mvm *mvm, const u8 *addr, #define OPT_HDR(type, skb, off) \ (type *)(skb_network_header(skb) + (off)) -static void iwl_mvm_tx_csum(struct iwl_mvm *mvm, struct sk_buff *skb, - struct ieee80211_hdr *hdr, - struct ieee80211_tx_info *info, - struct iwl_tx_cmd *tx_cmd) +static u16 iwl_mvm_tx_csum(struct iwl_mvm *mvm, struct sk_buff *skb, + struct ieee80211_hdr *hdr, + struct ieee80211_tx_info *info) { + u16 offload_assist = 0; #if IS_ENABLED(CONFIG_INET) u16 mh_len = ieee80211_hdrlen(hdr->frame_control); - u16 offload_assist = le16_to_cpu(tx_cmd->offload_assist); u8 protocol = 0; /* @@ -117,7 +116,7 @@ static void iwl_mvm_tx_csum(struct iwl_mvm *mvm, struct sk_buff *skb, * compute it */ if (skb->ip_summed != CHECKSUM_PARTIAL || IWL_MVM_SW_TX_CSUM_OFFLOAD) - return; + goto out; /* We do not expect to be requested to csum stuff we do not support */ if (WARN_ONCE(!(mvm->hw->netdev_features & IWL_TX_CSUM_NETIF_FLAGS) || @@ -125,7 +124,7 @@ static void iwl_mvm_tx_csum(struct iwl_mvm *mvm, struct sk_buff *skb, skb->protocol != htons(ETH_P_IPV6)), "No support for requested checksum\n")) { skb_checksum_help(skb); - return; + goto out; } if (skb->protocol == htons(ETH_P_IP)) { @@ -145,7 +144,7 @@ static void iwl_mvm_tx_csum(struct iwl_mvm *mvm, struct sk_buff *skb, protocol != NEXTHDR_HOP && protocol != NEXTHDR_DEST) { skb_checksum_help(skb); - return; + goto out; } hp = OPT_HDR(struct ipv6_opt_hdr, skb, off); @@ -159,7 +158,7 @@ static void iwl_mvm_tx_csum(struct iwl_mvm *mvm, struct sk_buff *skb, if (protocol != IPPROTO_TCP && protocol != IPPROTO_UDP) { WARN_ON_ONCE(1); skb_checksum_help(skb); - return; + goto out; } /* enable L4 csum */ @@ -191,8 +190,9 @@ static void iwl_mvm_tx_csum(struct iwl_mvm *mvm, struct sk_buff *skb, mh_len /= 2; offload_assist |= mh_len << TX_CMD_OFFLD_MH_SIZE; - tx_cmd->offload_assist = cpu_to_le16(offload_assist); +out: #endif + return offload_assist; } /* @@ -295,7 +295,8 @@ void iwl_mvm_set_tx_cmd(struct iwl_mvm *mvm, struct sk_buff *skb, !(tx_cmd->offload_assist & cpu_to_le16(BIT(TX_CMD_OFFLD_AMSDU)))) tx_cmd->offload_assist |= cpu_to_le16(BIT(TX_CMD_OFFLD_PAD)); - iwl_mvm_tx_csum(mvm, skb, hdr, info, tx_cmd); + tx_cmd->offload_assist |= + cpu_to_le16(iwl_mvm_tx_csum(mvm, skb, hdr, info)); } /* -- 2.7.4