- 02 Nov, 2011 2 commits
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Eric Dumazet authored
udp_queue_rcv_skb() has a possible race in encap_rcv handling, since this pointer can be changed anytime. We should use ACCESS_ONCE() to close the race. Signed-off-by:
Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Dave Jones authored
commit cb101ed2 in 3.0 introduced a bug in x25_recvmsg() When passed bogus junk from userspace, x25->neighbour can be NULL, as shown in this oops.. BUG: unable to handle kernel NULL pointer dereference at 000000000000001c IP: [<ffffffffa05482bd>] x25_recvmsg+0x4d/0x280 [x25] PGD 1015f3067 PUD 105072067 PMD 0 Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC CPU 0 Pid: 27928, comm: iknowthis Not tainted 3.1.0+ #2 Gigabyte Technology Co., Ltd. GA-MA78GM-S2H/GA-MA78GM-S2H RIP: 0010:[<ffffffffa05482bd>] [<ffffffffa05482bd>] x25_recvmsg+0x4d/0x280 [x25] RSP: 0018:ffff88010c0b7cc8 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff88010c0b7d78 RCX: 0000000000000c02 RDX: ffff88010c0b7d78 RSI: ffff88011c93dc00 RDI: ffff880103f667b0 RBP: ffff88010c0b7d18 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff880103f667b0 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f479ce7f700(0000) GS:ffff88012a600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 000000000000001c CR3: 000000010529e000 CR4: 00000000000006f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process iknowthis (pid: 27928, threadinfo ffff88010c0b6000, task ffff880103faa4f0) Stack: 0000000000000c02 0000000000000c02 ffff88010c0b7d18 ffffff958153cb37 ffffffff8153cb60 0000000000000c02 ffff88011c93dc00 0000000000000000 0000000000000c02 ffff88010c0b7e10 ffff88010c0b7de8 ffffffff815372c2 Call Trace: [<ffffffff8153cb60>] ? sock_update_classid+0xb0/0x180 [<ffffffff815372c2>] sock_aio_read.part.10+0x142/0x150 [<ffffffff812d6752>] ? inode_has_perm+0x62/0xa0 [<ffffffff815372fd>] sock_aio_read+0x2d/0x40 [<ffffffff811b05e2>] do_sync_read+0xd2/0x110 [<ffffffff812d3796>] ? security_file_permission+0x96/0xb0 [<ffffffff811b0a91>] ? rw_verify_area+0x61/0x100 [<ffffffff811b103d>] vfs_read+0x16d/0x180 [<ffffffff811b109d>] sys_read+0x4d/0x90 [<ffffffff81657282>] system_call_fastpath+0x16/0x1b Code: 8b 66 20 4c 8b 32 48 89 d3 48 89 4d b8 45 89 c7 c7 45 cc 95 ff ff ff 4d 85 e4 0f 84 ed 01 00 00 49 8b 84 24 18 05 00 00 4c 89 e7 78 1c 01 45 19 ed 31 f6 e8 d5 37 ff e0 41 0f b6 44 24 0e 41 Signed-off-by:
Dave Jones <davej@redhat.com> Acked-by:
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- 01 Nov, 2011 38 commits
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Geert Uytterhoeven authored
Macintosh CS89x0 based ethernet cards use a Crystal Semiconductor (Now Cirrus Logic) CS89x0 chip, so the mac89x0 driver should be in drivers/net/ethernet/cirrus instead of drivers/net/ethernet/apple. This also fixes a build problem, as the driver needs a header file from the cirrus directory: drivers/net/ethernet/apple/mac89x0.c:107:20: error: cs89x0.h: No such file or directory Signed-off-by:
Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by:
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Cesar Eduardo Barros authored
While the SC92031 could be found on fake "Realtek" NICs, it has no relationship to Realtek, and is actually from Silan. Create a new subdirectory for silan and move sc92031 there. Signed-off-by:
Cesar Eduardo Barros <cesarb@cesarb.net> Signed-off-by:
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Paul Bolle authored
That should probably be 'CONFIG_DE_AOC'. Signed-off-by:
Paul Bolle <pebolle@tiscali.nl> Signed-off-by:
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Arjan van de Ven authored
the tcp and udp code creates a set of struct file_operations at runtime while it can also be done at compile time, with the added benefit of then having these file operations be const. the trickiest part was to get the "THIS_MODULE" reference right; the naive method of declaring a struct in the place of registration would not work for this reason. Signed-off-by:
Arjan van de Ven <arjan@linux.intel.com> Signed-off-by:
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Weiping Pan authored
Zheng Liang(lzheng@redhat.com) found a bug that if we config bonding with arp monitor, sometimes bonding driver cannot get the speed and duplex from its slaves, it will assume them to be 100Mb/sec and Full, please see /proc/net/bonding/bond0. But there is no such problem when uses miimon. (Take igb for example) I find that the reason is that after dev_open() in bond_enslave(), bond_update_speed_duplex() will call igb_get_settings() , but in that function, it runs ethtool_cmd_speed_set(ecmd, -1); ecmd->duplex = -1; because igb get an error value of status. So even dev_open() is called, but the device is not really ready to get its settings. Maybe it is safe for us to call igb_get_settings() only after this message shows up, that is "igb: p4p1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX". So I prefer to update the speed and duplex for a slave when reseices NETDEV_CHANGE/NETDEV_UP event. Changelog V2: 1 remove the "fake 100/Full" logic in bond_update_speed_duplex(), set speed and duplex to -1 when it gets error value of speed and duplex. 2 delete the warning in bond_enslave() if bond_update_speed_duplex() returns error. 3 make bond_info_show_slave() handle bad values of speed and duplex. Signed-off-by:
Weiping Pan <wpan@redhat.com> Signed-off-by:
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Matthijs Kooijman authored
When (de)configuring a vlan interface, the IFF_ALLMULTI ans IFF_PROMISC flags are cleared or set on the underlying interface. So, if these flags are changed on a vlan interface that is not up, the flags underlying interface might be set or cleared twice. Only propagating flag changes when a device is up makes sure this does not happen. It also makes sure that an underlying device is not set to promiscuous or allmulti mode for a vlan device that is down. Signed-off-by:
Matthijs Kooijman <matthijs@stdin.nl> Signed-off-by:
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David S. Miller authored
Whatever situations make this state legitimate when SMP also would be legitimate when !SMP and f.e. preemption is enabled. This is dubious enough that we should just delete it entirely. If we want to add debugging for neigh timer races, better more thorough mechanisms are needed. Signed-off-by: -
Florian Westphal authored
commit f1585086 (netfilter: nfnetlink_queue: return error number to caller) erronously assigns the return value of nf_queue() to the "ret" value. This can cause bogus return values if we encounter QUEUE verdict when bypassing is enabled, the listener does not exist and the next hook returns NF_STOLEN. In this case nf_hook_slow returned -ESRCH instead of 0. Signed-off-by:
Florian Westphal <fw@strlen.de> Signed-off-by:
Pablo Neira Ayuso <pablo@netfilter.org>
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Pablo Neira Ayuso authored
Marc Boucher, James Morris and Rusty Russell were crucial in the early netfilter days. We thank them all! However, they are not actively maintaining netfilter anymore. This patch adds myself as netfilter maintainer. Signed-off-by: -
Florian Westphal authored
Several callers (h323 conntrack, xt_addrtype) assume that the returned **dst only needs to be released if the function returns 0. This is true for the ipv4 implementation, but not for the ipv6 one. Instead of changing the users, change the ipv6 implementation to behave like the ipv4 version by only providing the dst_entry result in the success case. Signed-off-by:
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Krzysztof Wilczynski authored
This is to address the following error during the compilation: In file included from kernel/sysctl_binary.c:6: include/net/ip_vs.h:1406: error: expected identifier or ‘(’ before ‘{’ token make[1]: *** [kernel/sysctl_binary.o] Error 1 make[1]: *** Waiting for unfinished jobs.... That manifests itself when CONFIG_IP_VS_NFCT is undefined in .config file. Signed-off-by:Krzysztof Wilczynski <krzysztof.wilczynski@linux.com> Signed-off-by:
Simon Horman <horms@verge.net.au>
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Krzysztof Wilczynski authored
This is to address the following warning during compilation time: net/netfilter/ipvs/ip_vs_core.c: In function ‘ip_vs_leave’: net/netfilter/ipvs/ip_vs_core.c:532: warning: unused variable ‘cs’ This variable is indeed no longer in use. Signed-off-by:
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Pablo Neira Ayuso authored
This patch exports several definitions that used to live under include/net/netfilter/nf_nat.h. These definitions, although not exported, have been used by iptables and other userspace applications like miniupnpd since long time. Basically, these userspace tools included some internal definition of the required structures and they assume no changes in the binary representation (which is OK indeed). To resolve this situation, this patch makes public the required structure and install them in INSTALL_HDR_PATH. See: https://bugs.gentoo.org/376873, for more information. This patch is heavily based on the initial patch sent by: Anthony G. Basile <blueness@gentoo.org> Which was entitled: netfilter: export sanitized nf_nat.h to INSTALL_HDR_PATH Signed-off-by:
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Joe Perches authored
Site specific OOM messages are duplications of a generic MM out of memory message and aren't really useful, so just delete them. Signed-off-by:
Joe Perches <joe@perches.com> Signed-off-by:
Patrick McHardy <kaber@trash.net> Signed-off-by:
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Simon Horman authored
Reported-by:
Randy Dunlap <rdunlap@xenotime.net> Signed-off-by:
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Simon Horman authored
Also reword the test to make it read more easily (to me) Signed-off-by:
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Simon Horman authored
ipvs is not used in ip_vs_genl_set_cmd() or ip_vs_genl_get_cmd() Acked-by:
Julian Anastasov <ja@ssi.bg> Acked-by Hans Schillstrom <hans@schillstrom.com> Signed-off-by:
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Simon Horman authored
Acked-by:
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Simon Horman authored
Acked-by:
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Simon Horman authored
Add missing documentation for conntrack, snat_reroute and sync_version. Also fix up a typo, IPVS_DEBUG should be IP_VS_DEBUG. Acked-by:
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Krzysztof Wilczynski authored
This is to expose "ports" parameter via sysfs so it can be read at any time in order to determine what port or ports were passed to the module at the point when it was loaded. Signed-off-by:
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Marcos Paulo de Souza authored
Fixes parameter name of skb_frag_dmamap function to silence warning on make htmldocs. Signed-off-by:
Marcos Paulo de Souza <marcos.mage@gmail.com> Signed-off-by:
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Andrew Morton authored
The `#define filename' screws up the expansion of DEFINE_DYNAMIC_DEBUG_METADATA: drivers/net/ethernet/i825xx/3c505.c: In function 'send_pcb': drivers/net/ethernet/i825xx/3c505.c:390: error: expected identifier before string constant drivers/net/ethernet/i825xx/3c505.c:390: error: expected '}' before '.' token drivers/net/ethernet/i825xx/3c505.c:436: error: expected identifier before string constant drivers/net/ethernet/i825xx/3c505.c:435: error: expected '}' before '.' token drivers/net/ethernet/i825xx/3c505.c: In function 'start_receive': drivers/net/ethernet/i825xx/3c505.c:557: error: expected identifier before string constant drivers/net/ethernet/i825xx/3c505.c:557: error: expected '}' before '.' token drivers/net/ethernet/i825xx/3c505.c: In function 'receive_packet': drivers/net/ethernet/i825xx/3c505.c:629: error: expected identifier before string constant etc So remove that #define and "open-code" it. Cc: Philip Blundell <philb@gnu.org> Cc: David Miller <davem@davemloft.net> Cc: Jason Baron <jbaron@redhat.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Linus Torvalds authored
Quoth Andrew: - Most of MM. Still waiting for the poweroc guys to get off their butts and review some threaded hugepages patches. - alpha - vfs bits - drivers/misc - a few core kerenl tweaks - printk() features - MAINTAINERS updates - backlight merge - leds merge - various lib/ updates - checkpatch updates * akpm: (127 commits) epoll: fix spurious lockdep warnings checkpatch: add a --strict check for utf-8 in commit logs kernel.h/checkpatch: mark strict_strto<foo> and simple_strto<foo> as obsolete llist-return-whether-list-is-empty-before-adding-in-llist_add-fix wireless: at76c50x: follow rename pack_hex_byte to hex_byte_pack fat: follow rename pack_hex_byte() to hex_byte_pack() security: follow rename pack_hex_byte() to hex_byte_pack() kgdb: follow rename pack_hex_byte() to hex_byte_pack() lib: rename pack_hex_byte() to hex_byte_pack() lib/string.c: fix strim() semantics for strings that have only blanks lib/idr.c: fix comment for ida_get_new_above() lib/percpu_counter.c: enclose hotplug only variables in hotplug ifdef lib/bitmap.c: quiet sparse noise about address space lib/spinlock_debug.c: print owner on spinlock lockup lib/kstrtox: common code between kstrto*() and simple_strto*() functions drivers/leds/leds-lp5521.c: check if reset is successful leds: turn the blink_timer off before starting to blink leds: save the delay values after a successful call to blink_set() drivers/leds/leds-gpio.c: use gpio_get_value_cansleep() when initializing drivers/leds/leds-lm3530.c: add __devexit_p where needed ...
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Nelson Elhage authored
epoll can acquire recursively acquire ep->mtx on multiple "struct eventpoll"s at once in the case where one epoll fd is monitoring another epoll fd. This is perfectly OK, since we're careful about the lock ordering, but it causes spurious lockdep warnings. Annotate the recursion using mutex_lock_nested, and add a comment explaining the nesting rules for good measure. Recent versions of systemd are triggering this, and it can also be demonstrated with the following trivial test program: --------------------8<-------------------- int main(void) { int e1, e2; struct epoll_event evt = { .events = EPOLLIN }; e1 = epoll_create1(0); e2 = epoll_create1(0); epoll_ctl(e1, EPOLL_CTL_ADD, e2, &evt); return 0; } --------------------8<-------------------- Reported-by:Nelson Elhage <nelhage@nelhage.com> Acked-by:
Jason Baron <jbaron@redhat.com> Cc: Dave Jones <davej@redhat.com> Cc: Davide Libenzi <davidel@xmailserver.org> Cc: <stable@kernel.org> Cc: <stable@vger.kernel.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Joe Perches authored
Some find using utf-8 in commit logs inappropriate. Some patch commit logs contain unintended utf-8 characters when doing things like copy/pasting compilation output. Look for the start of any commit log by skipping initial lines that look like email headers and "From: " lines. Stop looking for utf-8 at the first signature line. Signed-off-by:
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Joe Perches authored
Mark obsolete/deprecated strict_strto<foo> and simple_strto<foo> functions and macros as obsolete. Update checkpatch to warn about their use. Signed-off-by:
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Andrew Morton authored
clarify comment Cc: Huang Ying <ying.huang@intel.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by:
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Andy Shevchenko authored
There is no functional change. Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by:
John W. Linville <linville@tuxdriver.com> Signed-off-by:
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Andy Shevchenko authored
There is no functional change. Signed-off-by:
OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by:
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Andy Shevchenko authored
There is no functional change. Signed-off-by:
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Andy Shevchenko authored
There is no functional change. Signed-off-by:
Jesper Nilsson <jesper.nilsson@axis.com> Cc: David Howells <dhowells@redhat.com> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Cc: Jason Wessel <jason.wessel@windriver.com> Signed-off-by:
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Andy Shevchenko authored
As suggested by Andrew Morton in [1] there is better to have most significant part first in the function name. [1] https://lkml.org/lkml/2011/9/20/22 There is no functional change. Signed-off-by:
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Michael Holzheu authored
Commit 84c95c9a ("string: on strstrip(), first remove leading spaces before running over str") improved the performance of the strim() function. Unfortunately this changed the semantics of strim() and broke my code. Before the patch it was possible to use strim() without using the return value for removing trailing spaces from strings that had either only blanks or only trailing blanks. Now this does not work any longer for strings that *only* have blanks. Before patch: " " -> "" (empty string) After patch: " " -> " " (no change) I think we should remove your patch to restore the old behavior. The description (lib/string.c): * Note that the first trailing whitespace is replaced with a %NUL-terminator => The first trailing whitespace of a string that only has whitespace characters is the first whitespace The patch restores the old strim() semantics. Signed-off-by:
Michael Holzheu <holzheu@linux.vnet.ibm.com> Cc: Andre Goddard Rosa <andre.goddard@gmail.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by:
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Wang Sheng-Hui authored
Signed-off-by:
Wang Sheng-Hui <shhuiw@gmail.com> Signed-off-by:
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Glauber Costa authored
These variables are only used when CONFIG_HOTPLUG_CPU is enabled, they are ifdef'ed everywhere else. So don't define them when CONFIG_HOTPLUG_CPU is not enabled. Signed-off-by:
Glauber Costa <glommer@parallels.com> Signed-off-by:
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H Hartley Sweeten authored
__bitmap_parse() and __bitmap_parselist() both take a pointer to a kernel buffer as a parameter and then cast it to a pointer to user buffer for use in cases when the parameter is_user indicates that the buffer is actually located in user space. This casting, and the casts in the callers, results in sparse noise like the following: warning: incorrect type in initializer (different address spaces) expected char const [noderef] <asn:1>*ubuf got char const *buf warning: cast removes address space of expression Since these casts are intentional, use __force to quiet the noise. Signed-off-by:
H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Len Brown <len.brown@intel.com> Cc: Huang Ying <ying.huang@intel.com> Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Andi Kleen <ak@linux.intel.com> Signed-off-by:
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Akinobu Mita authored
When SPIN_BUG_ON is triggered, the lock owner information is reported. But it is omitted when spinlock lockup is detected. This information is useful especially on the architectures which don't implement trigger_all_cpu_backtrace() that is called just after detecting lockup. So report it and also avoid message format duplication. Signed-off-by:
Akinobu Mita <akinobu.mita@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Signed-off-by:
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