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author | Thomas Gleixner <tglx@linutronix.de> | 2018-01-27 15:35:29 +0100 |
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committer | Thomas Gleixner <tglx@linutronix.de> | 2018-01-27 15:35:29 +0100 |
commit | 303c146df1c4574db3495d9acc5c440dd46c6b0f (patch) | |
tree | fbcea289aea24da8a44c7677a776988bb3c8bcbe /drivers/net/ethernet/intel/i40evf | |
parent | usb/gadget/NCM: Replace tasklet with softirq hrtimer (diff) | |
parent | hrtimer: Reset hrtimer cpu base proper on CPU hotplug (diff) | |
download | linux-dev-303c146df1c4574db3495d9acc5c440dd46c6b0f.tar.xz linux-dev-303c146df1c4574db3495d9acc5c440dd46c6b0f.zip |
Merge branch 'timers/urgent' into timers/core
Pick up urgent bug fix and resolve the conflict.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/net/ethernet/intel/i40evf')
-rw-r--r-- | drivers/net/ethernet/intel/i40evf/i40e_txrx.c | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c index 50864f99446d..1ba29bb85b67 100644 --- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c @@ -2012,10 +2012,30 @@ bool __i40evf_chk_linearize(struct sk_buff *skb) /* Walk through fragments adding latest fragment, testing it, and * then removing stale fragments from the sum. */ - stale = &skb_shinfo(skb)->frags[0]; - for (;;) { + for (stale = &skb_shinfo(skb)->frags[0];; stale++) { + int stale_size = skb_frag_size(stale); + sum += skb_frag_size(frag++); + /* The stale fragment may present us with a smaller + * descriptor than the actual fragment size. To account + * for that we need to remove all the data on the front and + * figure out what the remainder would be in the last + * descriptor associated with the fragment. + */ + if (stale_size > I40E_MAX_DATA_PER_TXD) { + int align_pad = -(stale->page_offset) & + (I40E_MAX_READ_REQ_SIZE - 1); + + sum -= align_pad; + stale_size -= align_pad; + + do { + sum -= I40E_MAX_DATA_PER_TXD_ALIGNED; + stale_size -= I40E_MAX_DATA_PER_TXD_ALIGNED; + } while (stale_size > I40E_MAX_DATA_PER_TXD); + } + /* if sum is negative we failed to make sufficient progress */ if (sum < 0) return true; @@ -2023,7 +2043,7 @@ bool __i40evf_chk_linearize(struct sk_buff *skb) if (!nr_frags--) break; - sum -= skb_frag_size(stale++); + sum -= stale_size; } return false; |