linux-toradex.git/drivers/net, branch v2.6.35.9 Linux kernel for Apalis and Colibri modules r6040: Fix multicast filter some more 2010-11-22T19:00:10+00:00 Ben Hutchings ben@decadent.org.uk 2010-10-14T17:41:53+00:00 ebe60f3215a4d398aa348987f027597d582b50ec [ Upstream commit e2269308359d5863b6aa1fcb95a425a2ab255f1f ] This code has been broken forever, but in several different and creative ways. So far as I can work out, the R6040 MAC filter has 4 exact-match entries, the first of which the driver uses for its assigned unicast address, plus a 64-entry hash-based filter for multicast addresses (maybe unicast as well?). The original version of this code would write the first 4 multicast addresses as exact-match entries from offset 1 (bug #1: there is no entry 4 so this could write to some PHY registers). It would fill the remainder of the exact-match entries with the broadcast address (bug #2: this would overwrite the last used entry). If more than 4 multicast addresses were configured, it would set up the hash table, write some random crap to the MAC control register (bug #3) and finally walk off the end of the list when filling the exact-match entries (bug #4). All of this seems to be pointless, since it sets the promiscuous bit when the interface is made promiscuous or if >4 multicast addresses are enabled, and never clears it (bug #5, masking bug #2). The recent(ish) changes to the multicast list fixed bug #4, but completely removed the limit on iteration over the exact-match entries (bug #6). Bug #4 was reported as <https://bugzilla.kernel.org/show_bug.cgi?id=15355> and more recently as <http://bugs.debian.org/600155>. Florian Fainelli attempted to fix these in commit 3bcf8229a8c49769e48d3e0bd1e20d8e003f8106, but that actually dealt with bugs #1-3, bug #4 having been fixed in mainline at that point. That commit fixes the most important current bug #6. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
[ Upstream commit e2269308359d5863b6aa1fcb95a425a2ab255f1f ]

This code has been broken forever, but in several different and
creative ways.

So far as I can work out, the R6040 MAC filter has 4 exact-match
entries, the first of which the driver uses for its assigned unicast
address, plus a 64-entry hash-based filter for multicast addresses
(maybe unicast as well?).

The original version of this code would write the first 4 multicast
addresses as exact-match entries from offset 1 (bug #1: there is no
entry 4 so this could write to some PHY registers).  It would fill the
remainder of the exact-match entries with the broadcast address (bug #2:
this would overwrite the last used entry).  If more than 4 multicast
addresses were configured, it would set up the hash table, write some
random crap to the MAC control register (bug #3) and finally walk off
the end of the list when filling the exact-match entries (bug #4).

All of this seems to be pointless, since it sets the promiscuous bit
when the interface is made promiscuous or if >4 multicast addresses
are enabled, and never clears it (bug #5, masking bug #2).

The recent(ish) changes to the multicast list fixed bug #4, but
completely removed the limit on iteration over the exact-match entries
(bug #6).

Bug #4 was reported as
<https://bugzilla.kernel.org/show_bug.cgi?id=15355> and more recently
as <http://bugs.debian.org/600155>.  Florian Fainelli attempted to fix
these in commit 3bcf8229a8c49769e48d3e0bd1e20d8e003f8106, but that
actually dealt with bugs #1-3, bug #4 having been fixed in mainline at
that point.

That commit fixes the most important current bug #6.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
qlcnic: dont set skb->truesize 2010-11-22T19:00:08+00:00 Eric Dumazet eric.dumazet@gmail.com 2010-09-20T02:28:59+00:00 f38eaf1feb023c286b3c5e37185feb39b8b78b36 [ Upstream commit 8df8fd27123054b02007361bd5483775db84b4a8 ] skb->truesize is set in core network. Dont change it unless dealing with fragments. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
[ Upstream commit 8df8fd27123054b02007361bd5483775db84b4a8 ]

skb->truesize is set in core network.

Dont change it unless dealing with fragments.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
netxen: dont set skb->truesize 2010-11-22T19:00:07+00:00 Eric Dumazet eric.dumazet@gmail.com 2010-09-21T20:04:04+00:00 cf557ed8e65848790ec4acbb9311ab8abb2df3da [ Upstream commit 7e96dc7045bff8758804b047c0dfb6868f182500 ] skb->truesize is set in core network. Dont change it unless dealing with fragments. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
[ Upstream commit 7e96dc7045bff8758804b047c0dfb6868f182500 ]

skb->truesize is set in core network.

Dont change it unless dealing with fragments.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
gianfar: Fix crashes on RX path (Was Re: [Bugme-new] [Bug 19692] New: linux-2.6.36-rc5 crash with gianfar ethernet at full line rate traffic) 2010-11-22T19:00:06+00:00 Jarek Poplawski jarkao2@gmail.com 2010-10-19T00:06:36+00:00 4d7fa13e13b6d9cf4d2ed085d8c093dc6c6b549e [ Upstream commit 0d1fe1111c667e9c713d7efc7ae468a605f236a4 ] The rx_recycle queue is global per device but can be accesed by many napi handlers at the same time, so it needs full skb_queue primitives (with locking). Otherwise, various crashes caused by broken skbs are possible. This patch resolves, at least partly, bugzilla bug 19692. (Because of some doubts that there could be still something around which is hard to reproduce my proposal is to leave this bug opened for a month.) Fixes commit: 0fd56bb5be6455d0d42241e65aed057244665e5e ("gianfar: Add support for skb recycling") Reported-by: emin ak <eminak71@gmail.com> Tested-by: emin ak <eminak71@gmail.com> Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> CC: Andy Fleming <afleming@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
[ Upstream commit 0d1fe1111c667e9c713d7efc7ae468a605f236a4 ]

The rx_recycle queue is global per device but can be accesed by many
napi handlers at the same time, so it needs full skb_queue primitives
(with locking). Otherwise, various crashes caused by broken skbs are
possible.

This patch resolves, at least partly, bugzilla bug 19692. (Because of
some doubts that there could be still something around which is hard
to reproduce my proposal is to leave this bug opened for a month.)

Fixes commit: 0fd56bb5be6455d0d42241e65aed057244665e5e ("gianfar: Add
support for skb recycling")

Reported-by: emin ak <eminak71@gmail.com>
Tested-by: emin ak <eminak71@gmail.com>
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
CC: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
gianfar: fix double lock typo 2010-11-22T19:00:05+00:00 Dan Carpenter error27@gmail.com 2010-10-13T09:19:55+00:00 d27645006b5e2b136c0dd8d87e0c4d73612129d5 [ Upstream commit 9756403b16cfeda85efe77e62832a2f6b5752fdf ] This should be a _restore() instead of a _save(). Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
[ Upstream commit 9756403b16cfeda85efe77e62832a2f6b5752fdf ]

This should be a _restore() instead of a _save().

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/net/wireless/p54/eeprom.c: Return -ENOMEM on memory allocation failure 2010-11-22T18:59:53+00:00 Julia Lawall julia@diku.dk 2010-10-15T13:00:06+00:00 185de9185eafc0f7304a977d1f19c491447879e1 commit 0d91f22b75347d9503b17a42b6c74d3f7750acd6 upstream. In this code, 0 is returned on memory allocation failure, even though other failures return -ENOMEM or other similar values. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression ret; expression x,e1,e2,e3; @@ ret = 0 ... when != ret = e1 *x = \(kmalloc\|kcalloc\|kzalloc\)(...) ... when != ret = e2 if (x == NULL) { ... when != ret = e3 return ret; } // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Acked-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
commit 0d91f22b75347d9503b17a42b6c74d3f7750acd6 upstream.

In this code, 0 is returned on memory allocation failure, even though other
failures return -ENOMEM or other similar values.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression ret;
expression x,e1,e2,e3;
@@

ret = 0
... when != ret = e1
*x = \(kmalloc\|kcalloc\|kzalloc\)(...)
... when != ret = e2
if (x == NULL) { ... when != ret = e3
  return ret;
}
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
p54usb: add five more USBIDs 2010-11-22T18:59:52+00:00 Christian Lamparter chunkeey@googlemail.com 2010-10-01T20:01:24+00:00 4ffa3ba40ebed6a0fe70a19cb90addd20a5d57e1 commit 1a92795dac419128eb511dce30a6aad672064b88 upstream. Source: http://www.wikidevi.com/wiki/Intersil/p54/usb/windows Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
commit 1a92795dac419128eb511dce30a6aad672064b88 upstream.

Source:
http://www.wikidevi.com/wiki/Intersil/p54/usb/windows

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
p54usb: fix off-by-one on !CONFIG_PM 2010-11-22T18:59:52+00:00 Christian Lamparter chunkeey@googlemail.com 2010-08-22T20:41:33+00:00 7522ac94eb35ae9cf42540279b3e36344a5db52a commit 11791a6f7534906b4a01ffb54ba0b02ca39398ef upstream. The ISL3887 chip needs a USB reset, whenever the usb-frontend module "p54usb" is reloaded. This patch fixes an off-by-one bug, if the user is running a kernel without the CONFIG_PM option set and for some reason (e.g.: compat-wireless) wants to switch between different p54usb modules. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
commit 11791a6f7534906b4a01ffb54ba0b02ca39398ef upstream.

The ISL3887 chip needs a USB reset, whenever the
usb-frontend module "p54usb" is reloaded.

This patch fixes an off-by-one bug, if the user
is running a kernel without the CONFIG_PM option
set and for some reason (e.g.: compat-wireless)
wants to switch between different p54usb modules.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
b44: fix carrier detection on bind 2010-10-29T04:51:41+00:00 Paul Fertser fercerpav@gmail.com 2010-10-11T22:45:35+00:00 073676f1efde423a75fbfcb3ff4e0cbfaddb7bdb commit bcf64aa379fcadd074449cbf0c049da70071b06f upstream. For carrier detection to work properly when binding the driver with a cable unplugged, netif_carrier_off() should be called after register_netdev(), not before. Signed-off-by: Paul Fertser <fercerpav@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
commit bcf64aa379fcadd074449cbf0c049da70071b06f upstream.

For carrier detection to work properly when binding the driver with a cable
unplugged, netif_carrier_off() should be called after register_netdev(),
not before.

Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
r8169: allocate with GFP_KERNEL flag when able to sleep 2010-10-29T04:51:36+00:00 Stanislaw Gruszka sgruszka@redhat.com 2010-10-08T04:25:00+00:00 431e8d4b696f8cc10db1458865262139dda15e42 commit aeb19f6052b5e5c8a24aa444fbff73b84341beac upstream. We have fedora bug report where driver fail to initialize after suspend/resume because of memory allocation errors: https://bugzilla.redhat.com/show_bug.cgi?id=629158 To fix use GFP_KERNEL allocation where possible. Tested-by: Neal Becker <ndbecker2@gmail.com> Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 
commit aeb19f6052b5e5c8a24aa444fbff73b84341beac upstream.

We have fedora bug report where driver fail to initialize after
suspend/resume because of memory allocation errors:
https://bugzilla.redhat.com/show_bug.cgi?id=629158

To fix use GFP_KERNEL allocation where possible.

Tested-by: Neal Becker <ndbecker2@gmail.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>