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2016-10-07net: macb: NULL out phydev after removing mdio busNathan Sullivan1-0/+1
To ensure the dev->phydev pointer is not used after becoming invalid in mdiobus_unregister, set it to NULL. This happens when removing the macb driver without first taking its interface down, since unregister_netdev will end up calling macb_close. Signed-off-by: Xander Huff <xander.huff@ni.com> Signed-off-by: Nathan Sullivan <nathan.sullivan@ni.com> Signed-off-by: Brad Mouring <brad.mouring@ni.com> Reviewed-by: Moritz Fischer <moritz.fischer@ettus.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-07xen-netback: make sure that hashes are not send to unaware frontendsPaul Durrant1-11/+9
In the case when a frontend only negotiates a single queue with xen- netback it is possible for a skbuff with a s/w hash to result in a hash extra_info segment being sent to the frontend even when no hash algorithm has been configured. (The ndo_select_queue() entry point makes sure the hash is not set if no algorithm is configured, but this entry point is not called when there is only a single queue). This can result in a frontend that is unable to handle extra_info segments being given such a segment, causing it to crash. This patch fixes the problem by clearing the hash in ndo_start_xmit() instead, which is clearly guaranteed to be called irrespective of the number of queues. Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Acked-by: Wei Liu <wei.liu2@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-07Fixing a bug in team driver due to incorrect 'unsigned int' to 'int' conversionAlex Sidorenko1-1/+1
Roundrobin runner of team driver uses 'unsigned int' variable to count the number of sent_packets. Later it is passed to a subroutine team_num_to_port_index(struct team *team, int num) as 'num' and when we reach MAXINT (2**31-1), 'num' becomes negative. This leads to using incorrect hash-bucket for port lookup and as a result, packets are dropped. The fix consists of changing 'int num' to 'unsigned int num'. Testing of a fixed kernel shows that there is no packet drop anymore. Signed-off-by: Alex Sidorenko <alexandre.sidorenko@hpe.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-07MAINTAINERS: add myself as a maintainer of xen-netbackPaul Durrant1-0/+1
Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Acked-by: Wei Liu <wei.liu2@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-07ipv6 addrconf: disallow rtr_solicits < -1Maciej Żenczykowski1-1/+3
This disallows setting /proc/sys/net/ipv6/conf/*/router_solicitations to values below -1. -1 continues to mean an unlimited number of retransmits. Note: this depends on 'ipv6 addrconf: remove addrconf_sysctl_hop_limit()' Signed-off-by: Maciej Żenczykowski <maze@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-07vfs: Remove {get,set,remove}xattr inode operationsAndreas Gruenbacher55-319/+0
These inode operations are no longer used; remove them. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-10-07console: don't prefer first registered if DT specifies stdout-pathPaul Burton3-1/+20
If a device tree specifies a preferred device for kernel console output via the stdout-path or linux,stdout-path chosen node properties or the stdout alias then the kernel ought to honor it & output the kernel console to that device. As it stands, this isn't the case. Whilst we parse the stdout-path properties & set an of_stdout variable from of_alias_scan(), and use that from of_console_check() to determine whether to add a console device as a preferred console whilst registering it, we also prefer the first registered console if no other has been selected at the time of its registration. This means that if a console other than the one the device tree selects via stdout-path is registered first, we will switch to using it & when the stdout-path console is later registered the call to add_preferred_console() via of_console_check() is too late to do anything useful. In practice this seems to mean that we switch to the dummy console device fairly early & see no further console output: Console: colour dummy device 80x25 console [tty0] enabled bootconsole [ns16550a0] disabled Fix this by not automatically preferring the first registered console if one is specified by the device tree. This allows consoles to be registered but not enabled, and once the driver for the console selected by stdout-path calls of_console_check() the driver will be added to the list of preferred consoles before any other console has been enabled. When that console is then registered via register_console() it will be enabled as expected. Link: http://lkml.kernel.org/r/20160809151937.26118-1-paul.burton@imgtec.com Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Tejun Heo <tj@kernel.org> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Ivan Delalande <colona@arista.com> Cc: Thierry Reding <treding@nvidia.com> Cc: Borislav Petkov <bp@suse.de> Cc: Jan Kara <jack@suse.com> Cc: Petr Mladek <pmladek@suse.com> Cc: Joe Perches <joe@perches.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-07cred: simpler, 1D supplementary groupsAlexey Dobriyan14-85/+46
Current supplementary groups code can massively overallocate memory and is implemented in a way so that access to individual gid is done via 2D array. If number of gids is <= 32, memory allocation is more or less tolerable (140/148 bytes). But if it is not, code allocates full page (!) regardless and, what's even more fun, doesn't reuse small 32-entry array. 2D array means dependent shifts, loads and LEAs without possibility to optimize them (gid is never known at compile time). All of the above is unnecessary. Switch to the usual trailing-zero-len-array scheme. Memory is allocated with kmalloc/vmalloc() and only as much as needed. Accesses become simpler (LEA 8(gi,idx,4) or even without displacement). Maximum number of gids is 65536 which translates to 256KB+8 bytes. I think kernel can handle such allocation. On my usual desktop system with whole 9 (nine) aux groups, struct group_info shrinks from 148 bytes to 44 bytes, yay! Nice side effects: - "gi->gid[i]" is shorter than "GROUP_AT(gi, i)", less typing, - fix little mess in net/ipv4/ping.c should have been using GROUP_AT macro but this point becomes moot, - aux group allocation is persistent and should be accounted as such. Link: http://lkml.kernel.org/r/20160817201927.GA2096@p183.telecom.by Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Vasily Kulikov <segoon@openwall.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-07CREDITS: update Pavel's information, add GPG key, remove snail mail addressPavel Machek1-4/+4
Link: http://lkml.kernel.org/r/20161003082312.GA20634@amd Signed-off-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-07mailmap: add Johan HovoldJohan Hovold1-0/+2
Add two entries to map to my primary address. Link: http://lkml.kernel.org/r/1473850348-19177-1-git-send-email-johan@kernel.org Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>