#ifdef CONFIG_MAC80211_MESSAGE_TRACING

#if !defined(__MAC80211_MSG_DRIVER_TRACE) || defined(TRACE_HEADER_MULTI_READ)
#define __MAC80211_MSG_DRIVER_TRACE

#include <linux/tracepoint.h>
#include <net/mac80211.h>
#include "ieee80211_i.h"

#undef TRACE_SYSTEM
#define TRACE_SYSTEM mac80211_msg

#define MAX_MSG_LEN	100

DECLARE_EVENT_CLASS(mac80211_msg_event,
	TP_PROTO(struct va_format *vaf),

	TP_ARGS(vaf),

	TP_STRUCT__entry(
		__dynamic_array(char, msg, MAX_MSG_LEN)
	),

	TP_fast_assign(
		WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg),
				       MAX_MSG_LEN, vaf->fmt,
				       *vaf->va) >= MAX_MSG_LEN);
	),

	TP_printk("%s", __get_str(msg))
);

DEFINE_EVENT(mac80211_msg_event, mac80211_info,
	TP_PROTO(struct va_format *vaf),
	TP_ARGS(vaf)
);
DEFINE_EVENT(mac80211_msg_event, mac80211_dbg,
	TP_PROTO(struct va_format *vaf),
	TP_ARGS(vaf)
);
DEFINE_EVENT(mac80211_msg_event, mac80211_err,
	TP_PROTO(struct va_format *vaf),
	TP_ARGS(vaf)
);
#endif /* !__MAC80211_MSG_DRIVER_TRACE || TRACE_HEADER_MULTI_READ */

#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE trace_msg
#include <trace/define_trace.h>

#endif
move</option>
<option value='packet-loop-back'>packet-loop-back</option>
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<tr><td class='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?id=0dec879f636f11b0ffda1cb5fd96a1754c59ead3&amp;showmsg=1'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools?id=0dec879f636f11b0ffda1cb5fd96a1754c59ead3&amp;showmsg=1'>tools</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/tools?id=0dec879f636f11b0ffda1cb5fd96a1754c59ead3'>Collapse</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
<tr class='logheader'><td><span title='2017-02-06 22:50:04 -0500'>2017-02-06</span></td><td class='logsubject'><a href='/cgit.cgi/linux/net-next.git/commit/tools?id=63dfef75ed75364901d7caa52c6420cec3e73519'>bpf: enable verifier to add 0 to packet ptr</a></td><td>William Tu</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+23</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
The patch fixes the case when adding a zero value to the packet
pointer.  The zero value could come from src_reg equals type
BPF_K or CONST_IMM.  The patch fixes both, otherwise the verifer
reports the following error:
  [...]
    R0=imm0,min_value=0,max_value=0
    R1=pkt(id=0,off=0,r=4)
    R2=pkt_end R3=fp-12
    R4=imm4,min_value=4,max_value=4
    R5=pkt(id=0,off=4,r=4)
  269: (bf) r2 = r0     // r2 becomes imm0
  270: (77) r2 &gt;&gt;= 3
  271: (bf) r4 = r1     // r4 becomes pkt ptr
  272: (0f) r4 += r2    // r4 += 0
  addition of negative constant to packet pointer is not allowed

Signed-off-by: William Tu &lt;u9012063@gmail.com&gt;
Signed-off-by: Mihai Budiu &lt;mbudiu@vmware.com&gt;
Cc: Daniel Borkmann &lt;daniel@iogearbox.net&gt;
Cc: Alexei Starovoitov &lt;ast@kernel.org&gt;
Acked-by: Daniel Borkmann &lt;daniel@iogearbox.net&gt;
Acked-by: Alexei Starovoitov &lt;ast@kernel.org&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;


</td></tr>
<tr class='logheader'><td><span title='2017-02-06 22:35:58 -0500'>2017-02-06</span></td><td class='logsubject'><a href='/cgit.cgi/linux/net-next.git/commit/tools?id=29200c199cc9bde59033ab30fcc40b6c8ae630b0'>bpf: test for AND edge cases</a></td><td>Josef Bacik</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+55</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
These two tests are based on the work done for f23cc643f9ba.  The first test is
just a basic one to make sure we don't allow AND'ing negative values, even if it
would result in a valid index for the array.  The second is a cleaned up version
of the original testcase provided by Jann Horn that resulted in the commit.

Acked-by: Alexei Starovoitov &lt;ast@kernel.org&gt;
Acked-by: Daniel Borkmann &lt;daniel@iogearbox.net&gt;
Signed-off-by: Josef Bacik &lt;jbacik@fb.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;


</td></tr>