lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Tue, 25 Nov 2014 14:44:06 -0800 From: Alexander Duyck <alexander.h.duyck@...hat.com> To: netdev@...r.kernel.org Cc: Jeff Kirsher <jeffrey.t.kirsher@...el.com>, davem@...emloft.net Subject: [net-next PATCH 2/5] ethernet/intel: Use eth_skb_pad helper Update the Intel Ethernet drivers to use eth_skb_pad() instead of doing their own implementations of the function. Also this cleans up two other spots where skb_pad was called but the length and tail pointers were being manipulated directly instead of just having the padding length added via __skb_put. Cc: Jeff Kirsher <jeffrey.t.kirsher@...el.com> Signed-off-by: Alexander Duyck <alexander.h.duyck@...hat.com> --- drivers/net/ethernet/intel/e1000/e1000_main.c | 8 ++------ drivers/net/ethernet/intel/fm10k/fm10k_main.c | 11 +++-------- drivers/net/ethernet/intel/igb/igb_main.c | 11 +++-------- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 11 +++-------- drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 11 +++-------- 5 files changed, 14 insertions(+), 38 deletions(-) diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c index 24f3986..862d198 100644 --- a/drivers/net/ethernet/intel/e1000/e1000_main.c +++ b/drivers/net/ethernet/intel/e1000/e1000_main.c @@ -3136,12 +3136,8 @@ static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb, * packets may get corrupted during padding by HW. * To WA this issue, pad all small packets manually. */ - if (skb->len < ETH_ZLEN) { - if (skb_pad(skb, ETH_ZLEN - skb->len)) - return NETDEV_TX_OK; - skb->len = ETH_ZLEN; - skb_set_tail_pointer(skb, ETH_ZLEN); - } + if (eth_skb_pad(skb)) + return NETDEV_TX_OK; mss = skb_shinfo(skb)->gso_size; /* The controller does a simple calculation to diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_main.c b/drivers/net/ethernet/intel/fm10k/fm10k_main.c index 73457ed..91516ae 100644 --- a/drivers/net/ethernet/intel/fm10k/fm10k_main.c +++ b/drivers/net/ethernet/intel/fm10k/fm10k_main.c @@ -578,14 +578,9 @@ static bool fm10k_cleanup_headers(struct fm10k_ring *rx_ring, if (skb_is_nonlinear(skb)) fm10k_pull_tail(rx_ring, rx_desc, skb); - /* if skb_pad returns an error the skb was freed */ - if (unlikely(skb->len < 60)) { - int pad_len = 60 - skb->len; - - if (skb_pad(skb, pad_len)) - return true; - __skb_put(skb, pad_len); - } + /* if eth_skb_pad returns an error the skb was freed */ + if (eth_skb_pad(skb)) + return true; return false; } diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index b0e12e7..3cb54d0 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -6843,14 +6843,9 @@ static bool igb_cleanup_headers(struct igb_ring *rx_ring, if (skb_is_nonlinear(skb)) igb_pull_tail(rx_ring, rx_desc, skb); - /* if skb_pad returns an error the skb was freed */ - if (unlikely(skb->len < 60)) { - int pad_len = 60 - skb->len; - - if (skb_pad(skb, pad_len)) - return true; - __skb_put(skb, pad_len); - } + /* if eth_skb_pad returns an error the skb was freed */ + if (eth_skb_pad(skb)) + return true; return false; } diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 932f779..7d0991a 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -1766,14 +1766,9 @@ static bool ixgbe_cleanup_headers(struct ixgbe_ring *rx_ring, return false; #endif - /* if skb_pad returns an error the skb was freed */ - if (unlikely(skb->len < 60)) { - int pad_len = 60 - skb->len; - - if (skb_pad(skb, pad_len)) - return true; - __skb_put(skb, pad_len); - } + /* if eth_skb_pad returns an error the skb was freed */ + if (eth_skb_pad(skb)) + return true; return false; } diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c index 755f71f..465d6a8 100644 --- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c +++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c @@ -612,14 +612,9 @@ static bool ixgbevf_cleanup_headers(struct ixgbevf_ring *rx_ring, if (skb_is_nonlinear(skb)) ixgbevf_pull_tail(rx_ring, skb); - /* if skb_pad returns an error the skb was freed */ - if (unlikely(skb->len < 60)) { - int pad_len = 60 - skb->len; - - if (skb_pad(skb, pad_len)) - return true; - __skb_put(skb, pad_len); - } + /* if eth_skb_pad returns an error the skb was freed */ + if (eth_skb_pad(skb)) + return true; return false; } -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists