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Diffstat (limited to 'Documentation/networking/driver.txt')
| -rw-r--r-- | Documentation/networking/driver.txt | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/Documentation/networking/driver.txt b/Documentation/networking/driver.txt index 4f7da5a2bf4f..ea72d2e66ca8 100644 --- a/Documentation/networking/driver.txt +++ b/Documentation/networking/driver.txt @@ -61,7 +61,10 @@ Transmit path guidelines: 2) Do not forget to update netdev->trans_start to jiffies after each new tx packet is given to the hardware. -3) Do not forget that once you return 0 from your hard_start_xmit +3) A hard_start_xmit method must not modify the shared parts of a + cloned SKB. + +4) Do not forget that once you return 0 from your hard_start_xmit method, it is your driver's responsibility to free up the SKB and in some finite amount of time. |