| 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
| ||
|
Message-Id: <1310212240-24623-2-git-send-email-jeffrey.t.kirsher@intel.com> Date: Sat, 9 Jul 2011 04:50:36 -0700 From: Jeff Kirsher <jeffrey.t.kirsher@...el.com> To: davem@...emloft.net Cc: Carolyn Wyborny <carolyn.wyborny@...el.com>, netdev@...r.kernel.org, gospo@...hat.com, Jeff Kirsher <jeffrey.t.kirsher@...el.com> Subject: [net-next 1/5] igb: Fix lack of flush after register write and before delay From: Carolyn Wyborny <carolyn.wyborny@...el.com> Register writes followed by a delay are required to have a flush before the delay in order to commit the values to the register. Without the flush, the code following the delay may not function correctly. Reported-by: Tong Ho <tong.ho@...csson.com> Reported-by: Guenter Roeck <guenter.roeck@...csson.com> Signed-off-by: Carolyn Wyborny <carolyn.wyborny@...el.com> Tested-by: Aaron Brown <aaron.f.brown@...el.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com> --- drivers/net/igb/e1000_82575.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/net/igb/e1000_82575.c b/drivers/net/igb/e1000_82575.c index 0f563c8..493e331 100644 --- a/drivers/net/igb/e1000_82575.c +++ b/drivers/net/igb/e1000_82575.c @@ -1735,6 +1735,7 @@ static s32 igb_reset_hw_82580(struct e1000_hw *hw) ctrl |= E1000_CTRL_RST; wr32(E1000_CTRL, ctrl); + wrfl(); /* Add delay to insure DEV_RST has time to complete */ if (global_device_reset) -- 1.7.6 -- 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