| commit | 7be2c82cfd5d28d7adb66821a992604eb6dd112e | |
| author | Eric Dumazet <edumazet@google.com> | |
| Wed, 18 Jan 2017 20:12:17 +0000 (18 12:12 -0800) | ||
| committer | David S. Miller <davem@davemloft.net> | |
| Wed, 18 Jan 2017 20:24:27 +0000 (18 15:24 -0500) | ||
| tree | 43a9e60278228617cef8d236b01a57105ee630a3 | treesnapshot (tar.gz zip) |
| parent | d89ede6d8f029d3435d8a1602d21e5be68831369 | commitdiff |
net: fix harmonize_features() vs NETIF_F_HIGHDMA
Ashizuka reported a highmem oddity and sent a patch for freescale
fec driver.
But the problem root cause is that core networking stack
must ensure no skb with highmem fragment is ever sent through
a device that does not assert NETIF_F_HIGHDMA in its features.
We need to call illegal_highdma() from harmonize_features()
regardless of CSUM checks.
Fixes: ec5f06156423 ("net: Kill link between CSUM and SG features.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Pravin Shelar <pshelar@ovn.org>
Reported-by: "Ashizuka, Yuusuke" <ashiduka@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ashizuka reported a highmem oddity and sent a patch for freescale
fec driver.
But the problem root cause is that core networking stack
must ensure no skb with highmem fragment is ever sent through
a device that does not assert NETIF_F_HIGHDMA in its features.
We need to call illegal_highdma() from harmonize_features()
regardless of CSUM checks.
Fixes: ec5f06156423 ("net: Kill link between CSUM and SG features.")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Pravin Shelar <pshelar@ovn.org>
Reported-by: "Ashizuka, Yuusuke" <ashiduka@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| net/core/dev.c | diffblobblamehistory |