/*
 * MUSB OTG driver debug defines
 *
 * Copyright 2005 Mentor Graphics Corporation
 * Copyright (C) 2005-2006 by Texas Instruments
 * Copyright (C) 2006-2007 Nokia Corporation
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
 * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

#ifndef __MUSB_LINUX_DEBUG_H__
#define __MUSB_LINUX_DEBUG_H__

#define yprintk(facility, format, args...) \
	do { printk(facility "%s %d: " format , \
	__func__, __LINE__ , ## args); } while (0)
#define WARNING(fmt, args...) yprintk(KERN_WARNING, fmt, ## args)
#define INFO(fmt, args...) yprintk(KERN_INFO, fmt, ## args)
#define ERR(fmt, args...) yprintk(KERN_ERR, fmt, ## args)

void musb_dbg(struct musb *musb, const char *fmt, ...);

#ifdef CONFIG_DEBUG_FS
int musb_init_debugfs(struct musb *musb);
void musb_exit_debugfs(struct musb *musb);
#else
static inline int musb_init_debugfs(struct musb *musb)
{
	return 0;
}
static inline void musb_exit_debugfs(struct musb *musb)
{
}
#endif

#endif				/*  __MUSB_LINUX_DEBUG_H__ */
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?id=b3cf53e988cedb11a407d65abafca836da78b7c9'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/drivers?id=b3cf53e988cedb11a407d65abafca836da78b7c9'>drivers</a>/<a href='/cgit.cgi/linux/net-next.git/log/drivers/usb?id=b3cf53e988cedb11a407d65abafca836da78b7c9'>usb</a>/<a href='/cgit.cgi/linux/net-next.git/log/drivers/usb/wusbcore?id=b3cf53e988cedb11a407d65abafca836da78b7c9'>wusbcore</a>/<a href='/cgit.cgi/linux/net-next.git/log/drivers/usb/wusbcore/Kconfig?id=b3cf53e988cedb11a407d65abafca836da78b7c9'>Kconfig</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/drivers/usb/wusbcore/Kconfig?id=b3cf53e988cedb11a407d65abafca836da78b7c9&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></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/testing/selftests?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/testing/selftests?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;


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