<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-stable.git/drivers/net, branch v5.1.18</title>
<subtitle>Linux kernel stable tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/'/>
<entry>
<title>carl9170: fix misuse of device driver API</title>
<updated>2019-07-14T06:09:51+00:00</updated>
<author>
<name>Christian Lamparter</name>
<email>chunkeey@gmail.com</email>
</author>
<published>2019-06-08T14:49:47+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=9e0150f694944ce0a60a2a23d8cab8925baeb0a8'/>
<id>9e0150f694944ce0a60a2a23d8cab8925baeb0a8</id>
<content type='text'>
commit feb09b2933275a70917a869989ea2823e7356be8 upstream.

This patch follows Alan Stern's recent patch:
"p54: Fix race between disconnect and firmware loading"

that overhauled carl9170 buggy firmware loading and driver
unbinding procedures.

Since the carl9170 code was adapted from p54 it uses the
same functions and is likely to have the same problem, but
it's just that the syzbot hasn't reproduce them (yet).

a summary from the changes (copied from the p54 patch):
 * Call usb_driver_release_interface() rather than
   device_release_driver().

 * Lock udev (the interface's parent) before unbinding the
   driver instead of locking udev-&gt;parent.

 * During the firmware loading process, take a reference
   to the USB interface instead of the USB device.

 * Don't take an unnecessary reference to the device during
   probe (and then don't drop it during disconnect).

and

 * Make sure to prevent use-after-free bugs by explicitly
   setting the driver context to NULL after signaling the
   completion.

Cc: &lt;stable@vger.kernel.org&gt;
Cc: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Signed-off-by: Christian Lamparter &lt;chunkeey@gmail.com&gt;
Acked-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Signed-off-by: Kalle Valo &lt;kvalo@codeaurora.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit feb09b2933275a70917a869989ea2823e7356be8 upstream.

This patch follows Alan Stern's recent patch:
"p54: Fix race between disconnect and firmware loading"

that overhauled carl9170 buggy firmware loading and driver
unbinding procedures.

Since the carl9170 code was adapted from p54 it uses the
same functions and is likely to have the same problem, but
it's just that the syzbot hasn't reproduce them (yet).

a summary from the changes (copied from the p54 patch):
 * Call usb_driver_release_interface() rather than
   device_release_driver().

 * Lock udev (the interface's parent) before unbinding the
   driver instead of locking udev-&gt;parent.

 * During the firmware loading process, take a reference
   to the USB interface instead of the USB device.

 * Don't take an unnecessary reference to the device during
   probe (and then don't drop it during disconnect).

and

 * Make sure to prevent use-after-free bugs by explicitly
   setting the driver context to NULL after signaling the
   completion.

Cc: &lt;stable@vger.kernel.org&gt;
Cc: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Signed-off-by: Christian Lamparter &lt;chunkeey@gmail.com&gt;
Acked-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Signed-off-by: Kalle Valo &lt;kvalo@codeaurora.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>p54: fix crash during initialization</title>
<updated>2019-07-14T06:09:50+00:00</updated>
<author>
<name>Christian Lamparter</name>
<email>chunkeey@gmail.com</email>
</author>
<published>2019-05-18T20:05:48+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=99fdac8553c937b401c6e763a6caa08988d82de6'/>
<id>99fdac8553c937b401c6e763a6caa08988d82de6</id>
<content type='text'>
commit 1645ab931998b39aed5761f095956f0b10a6362f upstream.

This patch fixes a crash that got introduced when the
mentioned patch replaced  the direct list_head access
with skb_peek_tail(). When the device is starting up,
there are  no entries in  the queue, so previously to
"Use skb_peek_tail() instead..." the target_skb would
end up as the  tail and head pointer which then could
be used by __skb_queue_after to fill the empty queue.

With skb_peek_tail() in its place will instead just
return NULL which then causes a crash in the
__skb_queue_after().

| BUG: unable to handle kernel NULL pointer dereference at 000000
| #PF error: [normal kernel read fault]
| PGD 0 P4D 0
| Oops: 0000 [#1] SMP PTI
| CPU: 0 PID: 12 Comm: kworker/0:1 Tainted: GO   5.1.0-rc7-wt+ #218
| Hardware name: MSI MS-7816/Z87-G43 (MS-7816), BIOS V1.11 05/09/2015
| Workqueue: events request_firmware_work_func
| RIP: 0010:p54_tx_pending+0x10f/0x1b0 [p54common]
| Code: 78 06 80 78 28 00 74 6d &lt;48&gt; 8b 07 49 89 7c 24 08 49 89 04 24 4
| RSP: 0018:ffffa81c81927d90 EFLAGS: 00010086
| RAX: ffff9bbaaf131048 RBX: 0000000000020670 RCX: 0000000000020264
| RDX: ffff9bbaa976d660 RSI: 0000000000000202 RDI: 0000000000000000
| RBP: ffff9bbaa976d620 R08: 00000000000006c0 R09: ffff9bbaa976d660
| R10: 0000000000000000 R11: ffffe8480dbc5900 R12: ffff9bbb45e87700
| R13: ffff9bbaa976d648 R14: ffff9bbaa976d674 R15: ffff9bbaaf131048
| FS:  0000000000000000(0000) GS:ffff9bbb5ec00000(0000) knlGS:00000
| CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
| CR2: 0000000000000000 CR3: 00000003695fc003 CR4: 00000000001606f0
| Call Trace:
|  p54_download_eeprom+0xbe/0x120 [p54common]
|  p54_read_eeprom+0x7f/0xc0 [p54common]
|  p54u_load_firmware_cb+0xe0/0x160 [p54usb]
|  request_firmware_work_func+0x42/0x80
|  process_one_work+0x1f5/0x3f0
|  worker_thread+0x28/0x3c0

Cc: stable@vger.kernel.org
Fixes: e3554197fc8f ("p54: Use skb_peek_tail() instead of direct head pointer accesses.")
Signed-off-by: Christian Lamparter &lt;chunkeey@gmail.com&gt;
Signed-off-by: Kalle Valo &lt;kvalo@codeaurora.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 1645ab931998b39aed5761f095956f0b10a6362f upstream.

This patch fixes a crash that got introduced when the
mentioned patch replaced  the direct list_head access
with skb_peek_tail(). When the device is starting up,
there are  no entries in  the queue, so previously to
"Use skb_peek_tail() instead..." the target_skb would
end up as the  tail and head pointer which then could
be used by __skb_queue_after to fill the empty queue.

With skb_peek_tail() in its place will instead just
return NULL which then causes a crash in the
__skb_queue_after().

| BUG: unable to handle kernel NULL pointer dereference at 000000
| #PF error: [normal kernel read fault]
| PGD 0 P4D 0
| Oops: 0000 [#1] SMP PTI
| CPU: 0 PID: 12 Comm: kworker/0:1 Tainted: GO   5.1.0-rc7-wt+ #218
| Hardware name: MSI MS-7816/Z87-G43 (MS-7816), BIOS V1.11 05/09/2015
| Workqueue: events request_firmware_work_func
| RIP: 0010:p54_tx_pending+0x10f/0x1b0 [p54common]
| Code: 78 06 80 78 28 00 74 6d &lt;48&gt; 8b 07 49 89 7c 24 08 49 89 04 24 4
| RSP: 0018:ffffa81c81927d90 EFLAGS: 00010086
| RAX: ffff9bbaaf131048 RBX: 0000000000020670 RCX: 0000000000020264
| RDX: ffff9bbaa976d660 RSI: 0000000000000202 RDI: 0000000000000000
| RBP: ffff9bbaa976d620 R08: 00000000000006c0 R09: ffff9bbaa976d660
| R10: 0000000000000000 R11: ffffe8480dbc5900 R12: ffff9bbb45e87700
| R13: ffff9bbaa976d648 R14: ffff9bbaa976d674 R15: ffff9bbaaf131048
| FS:  0000000000000000(0000) GS:ffff9bbb5ec00000(0000) knlGS:00000
| CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
| CR2: 0000000000000000 CR3: 00000003695fc003 CR4: 00000000001606f0
| Call Trace:
|  p54_download_eeprom+0xbe/0x120 [p54common]
|  p54_read_eeprom+0x7f/0xc0 [p54common]
|  p54u_load_firmware_cb+0xe0/0x160 [p54usb]
|  request_firmware_work_func+0x42/0x80
|  process_one_work+0x1f5/0x3f0
|  worker_thread+0x28/0x3c0

Cc: stable@vger.kernel.org
Fixes: e3554197fc8f ("p54: Use skb_peek_tail() instead of direct head pointer accesses.")
Signed-off-by: Christian Lamparter &lt;chunkeey@gmail.com&gt;
Signed-off-by: Kalle Valo &lt;kvalo@codeaurora.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>p54usb: Fix race between disconnect and firmware loading</title>
<updated>2019-07-14T06:09:49+00:00</updated>
<author>
<name>Alan Stern</name>
<email>stern@rowland.harvard.edu</email>
</author>
<published>2019-05-20T14:44:21+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=cae928691200cbe65da1b31d92472f50abe48a14'/>
<id>cae928691200cbe65da1b31d92472f50abe48a14</id>
<content type='text'>
commit 6e41e2257f1094acc37618bf6c856115374c6922 upstream.

The syzbot fuzzer found a bug in the p54 USB wireless driver.  The
issue involves a race between disconnect and the firmware-loader
callback routine, and it has several aspects.

One big problem is that when the firmware can't be loaded, the
callback routine tries to unbind the driver from the USB _device_ (by
calling device_release_driver) instead of from the USB _interface_ to
which it is actually bound (by calling usb_driver_release_interface).

The race involves access to the private data structure.  The driver's
disconnect handler waits for a completion that is signalled by the
firmware-loader callback routine.  As soon as the completion is
signalled, you have to assume that the private data structure may have
been deallocated by the disconnect handler -- even if the firmware was
loaded without errors.  However, the callback routine does access the
private data several times after that point.

Another problem is that, in order to ensure that the USB device
structure hasn't been freed when the callback routine runs, the driver
takes a reference to it.  This isn't good enough any more, because now
that the callback routine calls usb_driver_release_interface, it has
to ensure that the interface structure hasn't been freed.

Finally, the driver takes an unnecessary reference to the USB device
structure in the probe function and drops the reference in the
disconnect handler.  This extra reference doesn't accomplish anything,
because the USB core already guarantees that a device structure won't
be deallocated while a driver is still bound to any of its interfaces.

To fix these problems, this patch makes the following changes:

	Call usb_driver_release_interface() rather than
	device_release_driver().

	Don't signal the completion until after the important
	information has been copied out of the private data structure,
	and don't refer to the private data at all thereafter.

	Lock udev (the interface's parent) before unbinding the driver
	instead of locking udev-&gt;parent.

	During the firmware loading process, take a reference to the
	USB interface instead of the USB device.

	Don't take an unnecessary reference to the device during probe
	(and then don't drop it during disconnect).

Signed-off-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Reported-and-tested-by: syzbot+200d4bb11b23d929335f@syzkaller.appspotmail.com
CC: &lt;stable@vger.kernel.org&gt;
Acked-by: Christian Lamparter &lt;chunkeey@gmail.com&gt;
Signed-off-by: Kalle Valo &lt;kvalo@codeaurora.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 6e41e2257f1094acc37618bf6c856115374c6922 upstream.

The syzbot fuzzer found a bug in the p54 USB wireless driver.  The
issue involves a race between disconnect and the firmware-loader
callback routine, and it has several aspects.

One big problem is that when the firmware can't be loaded, the
callback routine tries to unbind the driver from the USB _device_ (by
calling device_release_driver) instead of from the USB _interface_ to
which it is actually bound (by calling usb_driver_release_interface).

The race involves access to the private data structure.  The driver's
disconnect handler waits for a completion that is signalled by the
firmware-loader callback routine.  As soon as the completion is
signalled, you have to assume that the private data structure may have
been deallocated by the disconnect handler -- even if the firmware was
loaded without errors.  However, the callback routine does access the
private data several times after that point.

Another problem is that, in order to ensure that the USB device
structure hasn't been freed when the callback routine runs, the driver
takes a reference to it.  This isn't good enough any more, because now
that the callback routine calls usb_driver_release_interface, it has
to ensure that the interface structure hasn't been freed.

Finally, the driver takes an unnecessary reference to the USB device
structure in the probe function and drops the reference in the
disconnect handler.  This extra reference doesn't accomplish anything,
because the USB core already guarantees that a device structure won't
be deallocated while a driver is still bound to any of its interfaces.

To fix these problems, this patch makes the following changes:

	Call usb_driver_release_interface() rather than
	device_release_driver().

	Don't signal the completion until after the important
	information has been copied out of the private data structure,
	and don't refer to the private data at all thereafter.

	Lock udev (the interface's parent) before unbinding the driver
	instead of locking udev-&gt;parent.

	During the firmware loading process, take a reference to the
	USB interface instead of the USB device.

	Don't take an unnecessary reference to the device during probe
	(and then don't drop it during disconnect).

Signed-off-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Reported-and-tested-by: syzbot+200d4bb11b23d929335f@syzkaller.appspotmail.com
CC: &lt;stable@vger.kernel.org&gt;
Acked-by: Christian Lamparter &lt;chunkeey@gmail.com&gt;
Signed-off-by: Kalle Valo &lt;kvalo@codeaurora.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>mwifiex: Don't abort on small, spec-compliant vendor IEs</title>
<updated>2019-07-14T06:09:49+00:00</updated>
<author>
<name>Brian Norris</name>
<email>briannorris@chromium.org</email>
</author>
<published>2019-06-15T00:13:20+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=b441bf73158b3adea913fbd5d6002cdb556ee0d3'/>
<id>b441bf73158b3adea913fbd5d6002cdb556ee0d3</id>
<content type='text'>
commit 63d7ef36103d26f20325a921ecc96a3288560146 upstream.

Per the 802.11 specification, vendor IEs are (at minimum) only required
to contain an OUI. A type field is also included in ieee80211.h (struct
ieee80211_vendor_ie) but doesn't appear in the specification. The
remaining fields (subtype, version) are a convention used in WMM
headers.

Thus, we should not reject vendor-specific IEs that have only the
minimum length (3 bytes) -- we should skip over them (since we only want
to match longer IEs, that match either WMM or WPA formats). We can
reject elements that don't have the minimum-required 3 byte OUI.

While we're at it, move the non-standard subtype and version fields into
the WMM structs, to avoid this confusion in the future about generic
"vendor header" attributes.

Fixes: 685c9b7750bf ("mwifiex: Abort at too short BSS descriptor element")
Cc: Takashi Iwai &lt;tiwai@suse.de&gt;
Signed-off-by: Brian Norris &lt;briannorris@chromium.org&gt;
Reviewed-by: Takashi Iwai &lt;tiwai@suse.de&gt;
Signed-off-by: Kalle Valo &lt;kvalo@codeaurora.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 63d7ef36103d26f20325a921ecc96a3288560146 upstream.

Per the 802.11 specification, vendor IEs are (at minimum) only required
to contain an OUI. A type field is also included in ieee80211.h (struct
ieee80211_vendor_ie) but doesn't appear in the specification. The
remaining fields (subtype, version) are a convention used in WMM
headers.

Thus, we should not reject vendor-specific IEs that have only the
minimum length (3 bytes) -- we should skip over them (since we only want
to match longer IEs, that match either WMM or WPA formats). We can
reject elements that don't have the minimum-required 3 byte OUI.

While we're at it, move the non-standard subtype and version fields into
the WMM structs, to avoid this confusion in the future about generic
"vendor header" attributes.

Fixes: 685c9b7750bf ("mwifiex: Abort at too short BSS descriptor element")
Cc: Takashi Iwai &lt;tiwai@suse.de&gt;
Signed-off-by: Brian Norris &lt;briannorris@chromium.org&gt;
Reviewed-by: Takashi Iwai &lt;tiwai@suse.de&gt;
Signed-off-by: Kalle Valo &lt;kvalo@codeaurora.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>mwifiex: Abort at too short BSS descriptor element</title>
<updated>2019-07-14T06:09:48+00:00</updated>
<author>
<name>Takashi Iwai</name>
<email>tiwai@suse.de</email>
</author>
<published>2019-05-29T12:52:20+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=5a93f9120a1ab3fb2db98ea4a2fb0609e789d12f'/>
<id>5a93f9120a1ab3fb2db98ea4a2fb0609e789d12f</id>
<content type='text'>
commit 685c9b7750bfacd6fc1db50d86579980593b7869 upstream.

Currently mwifiex_update_bss_desc_with_ie() implicitly assumes that
the source descriptor entries contain the enough size for each type
and performs copying without checking the source size.  This may lead
to read over boundary.

Fix this by putting the source size check in appropriate places.

Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
Signed-off-by: Kalle Valo &lt;kvalo@codeaurora.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 685c9b7750bfacd6fc1db50d86579980593b7869 upstream.

Currently mwifiex_update_bss_desc_with_ie() implicitly assumes that
the source descriptor entries contain the enough size for each type
and performs copying without checking the source size.  This may lead
to read over boundary.

Fix this by putting the source size check in appropriate places.

Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
Signed-off-by: Kalle Valo &lt;kvalo@codeaurora.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>net: dsa: mv88e6xxx: fix shift of FID bits in mv88e6185_g1_vtu_loadpurge()</title>
<updated>2019-07-14T06:09:46+00:00</updated>
<author>
<name>Rasmus Villemoes</name>
<email>rasmus.villemoes@prevas.dk</email>
</author>
<published>2019-06-19T10:02:13+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=3f14533a672b21b12aa3109f3f6d15c2fe90f4ff'/>
<id>3f14533a672b21b12aa3109f3f6d15c2fe90f4ff</id>
<content type='text'>
[ Upstream commit 48620e341659f6e4b978ec229f6944dabe6df709 ]

The comment is correct, but the code ends up moving the bits four
places too far, into the VTUOp field.

Fixes: 11ea809f1a74 (net: dsa: mv88e6xxx: support 256 databases)
Signed-off-by: Rasmus Villemoes &lt;rasmus.villemoes@prevas.dk&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 48620e341659f6e4b978ec229f6944dabe6df709 ]

The comment is correct, but the code ends up moving the bits four
places too far, into the VTUOp field.

Fixes: 11ea809f1a74 (net: dsa: mv88e6xxx: support 256 databases)
Signed-off-by: Rasmus Villemoes &lt;rasmus.villemoes@prevas.dk&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>net: lio_core: fix potential sign-extension overflow on large shift</title>
<updated>2019-07-14T06:09:45+00:00</updated>
<author>
<name>Colin Ian King</name>
<email>colin.king@canonical.com</email>
</author>
<published>2019-06-17T16:12:49+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=40386f7d5f4328cc5bde597e857e265661ae23d6'/>
<id>40386f7d5f4328cc5bde597e857e265661ae23d6</id>
<content type='text'>
[ Upstream commit 9476274093a0e79b905f4cd6cf6d149f65e02c17 ]

Left shifting the signed int value 1 by 31 bits has undefined behaviour
and the shift amount oq_no can be as much as 63.  Fix this by using
BIT_ULL(oq_no) instead.

Addresses-Coverity: ("Bad shift operation")
Fixes: f21fb3ed364b ("Add support of Cavium Liquidio ethernet adapters")
Signed-off-by: Colin Ian King &lt;colin.king@canonical.com&gt;
Reviewed-by: Dan Carpenter &lt;dan.carpenter@oracle.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 9476274093a0e79b905f4cd6cf6d149f65e02c17 ]

Left shifting the signed int value 1 by 31 bits has undefined behaviour
and the shift amount oq_no can be as much as 63.  Fix this by using
BIT_ULL(oq_no) instead.

Addresses-Coverity: ("Bad shift operation")
Fixes: f21fb3ed364b ("Add support of Cavium Liquidio ethernet adapters")
Signed-off-by: Colin Ian King &lt;colin.king@canonical.com&gt;
Reviewed-by: Dan Carpenter &lt;dan.carpenter@oracle.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>bnx2x: Check if transceiver implements DDM before access</title>
<updated>2019-07-14T06:09:45+00:00</updated>
<author>
<name>Mauro S. M. Rodrigues</name>
<email>maurosr@linux.vnet.ibm.com</email>
</author>
<published>2019-06-13T19:25:40+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=d929834822c78b3a88105ec52a796f08f3a8976e'/>
<id>d929834822c78b3a88105ec52a796f08f3a8976e</id>
<content type='text'>
[ Upstream commit cf18cecca911c0db96b868072665347efe6df46f ]

Some transceivers may comply with SFF-8472 even though they do not
implement the Digital Diagnostic Monitoring (DDM) interface described in
the spec. The existence of such area is specified by the 6th bit of byte
92, set to 1 if implemented.

Currently, without checking this bit, bnx2x fails trying to read sfp
module's EEPROM with the follow message:

ethtool -m enP5p1s0f1
Cannot get Module EEPROM data: Input/output error

Because it fails to read the additional 256 bytes in which it is assumed
to exist the DDM data.

This issue was noticed using a Mellanox Passive DAC PN 01FT738. The EEPROM
data was confirmed by Mellanox as correct and similar to other Passive
DACs from other manufacturers.

Signed-off-by: Mauro S. M. Rodrigues &lt;maurosr@linux.vnet.ibm.com&gt;
Acked-by: Sudarsana Reddy Kalluru &lt;skalluru@marvell.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit cf18cecca911c0db96b868072665347efe6df46f ]

Some transceivers may comply with SFF-8472 even though they do not
implement the Digital Diagnostic Monitoring (DDM) interface described in
the spec. The existence of such area is specified by the 6th bit of byte
92, set to 1 if implemented.

Currently, without checking this bit, bnx2x fails trying to read sfp
module's EEPROM with the follow message:

ethtool -m enP5p1s0f1
Cannot get Module EEPROM data: Input/output error

Because it fails to read the additional 256 bytes in which it is assumed
to exist the DDM data.

This issue was noticed using a Mellanox Passive DAC PN 01FT738. The EEPROM
data was confirmed by Mellanox as correct and similar to other Passive
DACs from other manufacturers.

Signed-off-by: Mauro S. M. Rodrigues &lt;maurosr@linux.vnet.ibm.com&gt;
Acked-by: Sudarsana Reddy Kalluru &lt;skalluru@marvell.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>qmi_wwan: extend permitted QMAP mux_id value range</title>
<updated>2019-07-14T06:09:44+00:00</updated>
<author>
<name>Reinhard Speyerer</name>
<email>rspmn@arcor.de</email>
</author>
<published>2019-06-12T17:03:50+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=4e1b6174a87806df5fddc54305ed55d15e72b137'/>
<id>4e1b6174a87806df5fddc54305ed55d15e72b137</id>
<content type='text'>
[ Upstream commit 36815b416fa48766ac5a98e4b2dc3ebc5887222e ]

Permit mux_id values up to 254 to be used in qmimux_register_device()
for compatibility with ip(8) and the rmnet driver.

Fixes: c6adf77953bc ("net: usb: qmi_wwan: add qmap mux protocol support")
Cc: Daniele Palmas &lt;dnlplm@gmail.com&gt;
Signed-off-by: Reinhard Speyerer &lt;rspmn@arcor.de&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 36815b416fa48766ac5a98e4b2dc3ebc5887222e ]

Permit mux_id values up to 254 to be used in qmimux_register_device()
for compatibility with ip(8) and the rmnet driver.

Fixes: c6adf77953bc ("net: usb: qmi_wwan: add qmap mux protocol support")
Cc: Daniele Palmas &lt;dnlplm@gmail.com&gt;
Signed-off-by: Reinhard Speyerer &lt;rspmn@arcor.de&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>qmi_wwan: avoid RCU stalls on device disconnect when in QMAP mode</title>
<updated>2019-07-14T06:09:43+00:00</updated>
<author>
<name>Reinhard Speyerer</name>
<email>rspmn@arcor.de</email>
</author>
<published>2019-06-12T17:03:15+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=382719d4a0c815d2313a3d707088f6f02e3e161b'/>
<id>382719d4a0c815d2313a3d707088f6f02e3e161b</id>
<content type='text'>
[ Upstream commit a8fdde1cb830e560208af42b6c10750137f53eb3 ]

Switch qmimux_unregister_device() and qmi_wwan_disconnect() to
use unregister_netdevice_queue() and unregister_netdevice_many()
instead of unregister_netdevice(). This avoids RCU stalls which
have been observed on device disconnect in certain setups otherwise.

Fixes: c6adf77953bc ("net: usb: qmi_wwan: add qmap mux protocol support")
Cc: Daniele Palmas &lt;dnlplm@gmail.com&gt;
Signed-off-by: Reinhard Speyerer &lt;rspmn@arcor.de&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit a8fdde1cb830e560208af42b6c10750137f53eb3 ]

Switch qmimux_unregister_device() and qmi_wwan_disconnect() to
use unregister_netdevice_queue() and unregister_netdevice_many()
instead of unregister_netdevice(). This avoids RCU stalls which
have been observed on device disconnect in certain setups otherwise.

Fixes: c6adf77953bc ("net: usb: qmi_wwan: add qmap mux protocol support")
Cc: Daniele Palmas &lt;dnlplm@gmail.com&gt;
Signed-off-by: Reinhard Speyerer &lt;rspmn@arcor.de&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
</feed>
