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authorJesper Dangaard Brouer <brouer@redhat.com>2017-08-29 16:37:40 +0200
committerDavid S. Miller <davem@davemloft.net>2017-08-29 19:51:28 +0200
commitc31e5a4876cdfbfcc28c4fb201ad872c65671067 (patch)
tree2796a7c5b638c813aaed663acb6a0d79b6b9855d
parentMerge tag 'rxrpc-next-20170829' of git://git.kernel.org/pub/scm/linux/kernel/... (diff)
downloadlinux-c31e5a4876cdfbfcc28c4fb201ad872c65671067.tar.xz
linux-c31e5a4876cdfbfcc28c4fb201ad872c65671067.zip
xdp: remove redundant argument to trace_xdp_redirect
Supplying the action argument XDP_REDIRECT to the tracepoint xdp_redirect is redundant as it is only called in-case this action was specified. Remove the argument, but keep "act" member of the tracepoint struct and populate it with XDP_REDIRECT. This makes it easier to write a common bpf_prog processing events. Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/trace/events/xdp.h6
-rw-r--r--net/core/filter.c6
2 files changed, 6 insertions, 6 deletions
diff --git a/include/trace/events/xdp.h b/include/trace/events/xdp.h
index 27cf2ef35f5f..f684f3b36bca 100644
--- a/include/trace/events/xdp.h
+++ b/include/trace/events/xdp.h
@@ -52,10 +52,10 @@ TRACE_EVENT(xdp_exception,
TRACE_EVENT(xdp_redirect,
TP_PROTO(const struct net_device *dev,
- const struct bpf_prog *xdp, u32 act,
+ const struct bpf_prog *xdp,
int to_index, int err),
- TP_ARGS(dev, xdp, act, to_index, err),
+ TP_ARGS(dev, xdp, to_index, err),
TP_STRUCT__entry(
__array(u8, prog_tag, 8)
@@ -68,7 +68,7 @@ TRACE_EVENT(xdp_redirect,
TP_fast_assign(
BUILD_BUG_ON(sizeof(__entry->prog_tag) != sizeof(xdp->tag));
memcpy(__entry->prog_tag, xdp->tag, sizeof(xdp->tag));
- __entry->act = act;
+ __entry->act = XDP_REDIRECT;
__entry->ifindex = dev->ifindex;
__entry->to_index = to_index;
__entry->err = err;
diff --git a/net/core/filter.c b/net/core/filter.c
index 4bcd6baa80c9..de31fb684ad4 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -2524,7 +2524,7 @@ static int xdp_do_redirect_map(struct net_device *dev, struct xdp_buff *xdp,
if (likely(!err))
ri->map_to_flush = map;
out:
- trace_xdp_redirect(dev, xdp_prog, XDP_REDIRECT, index, err);
+ trace_xdp_redirect(dev, xdp_prog, index, err);
return err;
}
@@ -2548,7 +2548,7 @@ int xdp_do_redirect(struct net_device *dev, struct xdp_buff *xdp,
err = __bpf_tx_xdp(fwd, NULL, xdp, 0);
out:
- trace_xdp_redirect(dev, xdp_prog, XDP_REDIRECT, index, err);
+ trace_xdp_redirect(dev, xdp_prog, index, err);
return err;
}
EXPORT_SYMBOL_GPL(xdp_do_redirect);
@@ -2582,7 +2582,7 @@ int xdp_do_generic_redirect(struct net_device *dev, struct sk_buff *skb,
skb->dev = fwd;
out:
- trace_xdp_redirect(dev, xdp_prog, XDP_REDIRECT, index, err);
+ trace_xdp_redirect(dev, xdp_prog, index, err);
return err;
}
EXPORT_SYMBOL_GPL(xdp_do_generic_redirect);