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authorDaniel Borkmann <dborkman@redhat.com>2014-05-23 18:43:58 +0200
committerDavid S. Miller <davem@davemloft.net>2014-05-23 16:48:05 -0400
commitb1fcd35cf53553a0a3ef949b05106d921446abc3 (patch)
tree4784eb248a9705f2eae7dcb10968497f0559499f /Documentation/networking
parent8556ce79d5986a87fee4c29300b4efee07c0f15e (diff)
net: filter: let unattached filters use sock_fprog_kern
The sk_unattached_filter_create() API is used by BPF filters that are not directly attached or related to sockets, and are used in team, ptp, xt_bpf, cls_bpf, etc. As such all users do their own internal managment of obtaining filter blocks and thus already have them in kernel memory and set up before calling into sk_unattached_filter_create(). As a result, due to __user annotation in sock_fprog, sparse triggers false positives (incorrect type in assignment [different address space]) when filters are set up before passing them to sk_unattached_filter_create(). Therefore, let sk_unattached_filter_create() API use sock_fprog_kern to overcome this issue. Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Acked-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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