| 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: Thu, 6 Nov 2014 14:50:54 -0500 From: Sowmini Varadhan <sowmini.varadhan@...cle.com> To: davem@...emloft.net, sowmini.varadhan@...cle.com, david.stevens@...cle.com, ben@...adent.org.uk Cc: netdev@...r.kernel.org Subject: [PATCH 0/2 net-next] sunvnet: bug fixes This patch series has a coding-style fix and a bug fix. The coding style fix (patch 1) is the extra indentation flagged by Ben Hutchings: http://marc.info/?l=linux-netdev&m=141529243409594&w=2 The bugfix (patch 2) is the following: when vnet_event_napi() is called as part of napi_resume (i.e., continuation of a previous NAPI read that was truncated due to budget constraints), and then finds no more packets to read, the code was trying to avoid an additional trip through ldc_rx as an optimization. However, when this corner case happens, we would need to reset a number of dring state bits such as rcv_nxt carefully, which quickly becomes complex and hacky. The cleaner solution is to just roll back to vnet_poll, re-enable interrupts and set up dring state as was done in the pre-NAPI version of the driver. Sowmini Varadhan (2): Fix indentation in maybe_tx_wakeup() Return from vnet_napi_event() if no packets to read drivers/net/ethernet/sun/sunvnet.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) -- 1.8.4.2 -- 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