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| author |   David S. Miller <davem@sunset.davemloft.net> | 2007-10-11 18:08:29 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-11 18:08:29 -0700 |
| commit | 6f535763165331bb91277d7519b507fed22034e5 (patch) | |
| tree | 1968a01affa1cce3a3199c455d1fe1ebdca3ff47 /Documentation | |
| parent | [TCP]: Limit processing lost_retrans loop to work-to-do cases (diff) | |
| download | linux-dev-6f535763165331bb91277d7519b507fed22034e5.tar.xz linux-dev-6f535763165331bb91277d7519b507fed22034e5.zip | |
[NET]: Fix NAPI completion handling in some drivers.
In order for the list handling in net_rx_action() to be
correct, drivers must follow certain rules as stated by
this comment in net_rx_action():
/* Drivers must not modify the NAPI state if they
* consume the entire weight. In such cases this code
* still "owns" the NAPI instance and therefore can
* move the instance around on the list at-will.
*/
A few drivers do not do this because they mix the budget checks
with reading hardware state, resulting in crashes like the one
reported by takano@axe-inc.co.jp.
BNX2 and TG3 are taken care of here, SKY2 fix is from Stephen
Hemminger.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions