Thread (6 messages) 6 messages, 4 authors, 2014-02-28

Re: [PATCH net-next] ixgbevf: fix skb->pkt_type checks

From: Florian Fainelli <f.fainelli@gmail.com>
Date: 2014-02-28 23:31:57

2014-02-28 15:26 GMT-08:00 Brown, Aaron F [off-list ref]:
On Thu, 2014-02-27 at 14:58 -0800, Aaron Brown wrote:
quoted
On Wed, 2014-02-26 at 14:44 -0800, Florian Fainelli wrote:
quoted
skb->pkt_type is not a bitmask, but contains only value at a time from
the range defined in include/uapi/linux/if_packet.h.

Checking it like if it was a bitmask of values would also cause
PACKET_OTHERHOST, PACKET_LOOPBACK and PACKET_FASTROUTE to be matched by this
check since their lower 2 bits are also set, although that does not fix a real
bug due to how the checks are used, it is still potentially confusing.

This bogus check was introduced in commit 815cccbf ("ixgbe: add setlink,
getlink support to ixgbe and ixgbevf").

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
Thanks Florian, I have added this to our internal queue.
Unfortunately this introduces a compile error:
----------------------------------------------
/usr/src/kbuild_net-next_community/arch/x86/Makefile:133: CONFIG_X86_X32
enabled but no binutils support
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c: In function
‘ixgbevf_clean_rx_irq’:
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c:521: error: ‘adapter’
undeclared (first use in this function)
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c:521: error: (Each
undeclared identifier is reported only once
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c:521: error: for each
function it appears in.)
make[5]: *** [drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.o] Error 1
make[5]: *** Waiting for unfinished jobs....
make[4]: *** [drivers/net/ethernet/intel/ixgbevf] Error 2
make[3]: *** [drivers/net/ethernet/intel] Error 2
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [drivers/net/ethernet] Error 2
make[1]: *** [drivers/net] Error 2
make: *** [drivers] Error 2
~
----------------------------------------------
Are willing to fix up a v2?
Sure, let me re-submit with a fixed version (seems like I rebased
against an earlier version).
-- 
Florian
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