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2008-03-28driver core: fix small mem leak in driver_add_kobj()Jesper Juhl
The Coverity checker spotted that we leak the storage allocated to 'name' in int driver_add_kobj(). The leak looks legit to me - this is the code : int driver_add_kobj(struct device_driver *drv, struct kobject *kobj, const char *fmt, ...) { va_list args; char *name; int ret; va_start(args, fmt); name = kvasprintf(GFP_KERNEL, fmt, args); ^^^^^^^^ This dynamically allocates space... va_end(args); if (!name) return -ENOMEM; return kobject_add(kobj, &drv->p->kobj, "%s", name); ^^^^^^^^ This neglects to free the space allocated } Inside kobject_add() a copy of 'name' will be made and used. As far as I can see, Coverity is correct in flagging this as a leak, but I'd like some configmation before the patch is applied. This should fix it. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Cc: Greg KH <greg@kroah.com> Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-28dm io: write error bits form long not intAlasdair G Kergon
write_err is an unsigned long used with set_bit() so should not be passed around as unsigned int. http://bugzilla.kernel.org/show_bug.cgi?id=10271 Signed-off-by: Alasdair G Kergon <agk@redhat.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-28memstick: suppress uninitialized-var warningAndrew Morton
drivers/memstick/host/tifm_ms.c: In function 'tifm_ms_data_event': drivers/memstick/host/tifm_ms.c:185: warning: 'p_off' may be used uninitialized in this function Cc: Alex Dubov <oakad@yahoo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-28mtd: maps/physmap: fix oops in suspend/resume/shutdown opsAnton Vorontsov
# reboot ... [ 42.351266] Flash device refused suspend due to active operation (state 0) [ 42.358195] Unable to handle kernel NULL pointer dereference at virtual address 00000078 [ 42.360060] pgd = c7d9c000 [ 42.362769] [00000078] *pgd=a7d8d031, *pte=00000000, *ppte=00000000 [ 42.372902] Internal error: Oops: 17 [#1] [ 42.376911] Modules linked in: [ 42.379980] CPU: 0 Not tainted (2.6.25-rc2-10642-ge8f2594-dirty #73) [ 42.380000] PC is at physmap_flash_shutdown+0x28/0x54 ... [ 42.380000] Backtrace: [ 42.380000] [<c0130c1c>] (physmap_flash_shutdown+0x0/0x54) from [<c01207c0>] (platform_drv_shutdown+0x20/0x24) [ 42.380000] r5:28121969 r4:c0229e08 [ 42.380000] [<c01207a0>] (platform_drv_shutdown+0x0/0x24) from [<c011cd40>] (device_shutdown+0x60/0x88) [ 42.380000] [<c011cce0>] (device_shutdown+0x0/0x88) from [<c003e8a4>] (kernel_restart_prepare+0x2c/0x3c) [ 42.380000] r4:00000000 [ 42.380000] [<c003e878>] (kernel_restart_prepare+0x0/0x3c) from [<c003ea00>] (kernel_restart+0x14/0x48) [ 42.380000] [<c003e9ec>] (kernel_restart+0x0/0x48) from [<c003fdc0>] (sys_reboot+0xe8/0x1f8) [ 42.380000] r4:01234567 [ 42.380000] [<c003fcd8>] (sys_reboot+0x0/0x1f8) from [<c001aa00>] (ret_fast_syscall+0x0/0x2c) [ 42.380000] r7:00000058 r6:00000004 r5:00000001 r4:00000000 [ 42.380000] Code: 0a000009 e7953004 e1a00003 e1a0e00f (e593f078) [ 42.650051] ---[ end trace 6d6c26a0fc3141de ]--- Segmentation fault INIT: no more processes left in this runlevel While looping for mtd[i]s, we should stop at the mtd[i] == NULL. This patch also removes unnecessary "if (info)" checks: suspend/resume/shutdown ops are executed only if probe() is succeeded, so info is guaranteed to be !NULL. Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com> Cc: David Brownell <david-b@pacbell.net> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-28dm crypt: fix ctx pendingMilan Broz
Fix regression in dm-crypt introduced in commit 3a7f6c990ad04e6f576a159876c602d14d6f7fef ("dm crypt: use async crypto"). If write requests need to be split into pieces, the code must not process them in parallel because the crypto context cannot be shared. So there can be parallel crypto operations on one part of the write, but only one write bio can be processed at a time. This is not optimal and the workqueue code needs to be optimized for parallel processing, but for now it solves the problem without affecting the performance of synchronous crypto operation (most of current dm-crypt users). http://bugzilla.kernel.org/show_bug.cgi?id=10242 http://bugzilla.kernel.org/show_bug.cgi?id=10207 Signed-off-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-28blackfin video driver: fix bug when opening/reading/mmaping BF54x and BF52x ↵Michael Hennerich
framebuffer simultaneously http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3974 opening/reading/mmaping BF54x and BF52x framebuffer simultaneously triggers BUG: failure at mm/nommu.c:470/add_nommu_vma() Add VM_SHARED to the default vm_flags Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-28blackfin video driver: update the BF52x EZKIT video framebuffer driver ↵Bryan Wu
according to LKML review - Allocate pseudo_palette together with fbinfo - Code cleanup Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-28pci: revert SMBus unhide on HP Compaq nx6110Jean Delvare
This reverts commit 3c0a654e390d00fef9d8faed758f5e1e8078adb5 and fixes kernel bug #10245: http://bugzilla.kernel.org/show_bug.cgi?id=10245 The HP Compaq nc6120 has the same PCI sub-device ID as the nx6110, and the SMBus is used by ACPI for thermal management on the nc6120, so Linux should not attach a native driver to it. This means that this quirk is unsafe and has to be removed. I also added a comment to help developers realize that adding new IDs to this SMBus unhiding quirk table should be done only with great care, and in particular only after checking that ACPI is not making use of the SMBus. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Tomasz Koprowski <tomek@koprowski.org> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-28ixp4xx-beeper: add MODULE_ALIASAlessandro Zummo
The following patch allows ixp4xx-beeper to be loaded by udev automatically when compiled as a module with kernel versions 2.4.24 and greater. This patch is required because 43cc71eed1250755986da4c0f9898f9a635cb3bf ("platform: prefix MODALIAS with "platform:"") changed the modalias string to have the extra prefix. LKG7102D7:~# udevinfo -a -p /sys/devices/platform/ixp4xx-beeper.4 looking at device '/devices/platform/ixp4xx-beeper.4': KERNEL=="ixp4xx-beeper.4" SUBSYSTEM=="platform" DRIVER=="" ATTR{modalias}=="platform:ixp4xx-beeper" udev therefore tries to modprobe platform:ixp4xx-beeper instead of ixp4xx-beeper. LKG7102D7:~# udevtest /sys/devices/platform/ixp4xx-beeper.4 ... import_uevent_var: import into environment: 'PHYSDEVBUS=platform' import_uevent_var: import into environment: 'MODALIAS=platform:ixp4xx-beeper' main: looking at device '/devices/platform/ixp4xx-beeper.4' from subsystem 'platform' wait_for_sysfs: file '/sys/devices/platform/ixp4xx-beeper.4/bus' appeared after 0 loops main: run: 'socket:/org/kernel/udev/monitor' main: run: '/sbin/modprobe --use-blacklist platform:ixp4xx-beeper' With this patch, depmod adds an alias line (see below) to modules.alias which allows modprobe to load the right module. alias platform:ixp4xx-beeper ixp4xx-beeper Signed-off-by: Gordon Farquharson <gordonfarquharson@gmail.com> Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: David Brownell <david-b@pacbell.net> Cc: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-28drivers/char/drm/ati_pcigart.c: fix printk warningAndrew Morton
drivers/char/drm/ati_pcigart.c: In function 'drm_ati_pcigart_init': drivers/char/drm/ati_pcigart.c:125: warning: format '%08X' expects type 'unsigned int', but argument 3 has type 'dma_addr_t' Cc: Dave Airlie <airlied@linux.ie> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-28mtd: nand: add out label in rfc_from4Sebastian Siewior
This has been forgotten in commit f5bbdacc419 ("[MTD] NAND Modularize read function") and nobody compiled the driver. Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Joern Engel <joern@wh.fh-wedel.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-28RDMA/cxgb3: Program hardware IRD with correct valueRoland Dreier
Because of a typo in iwch_accept_cr(), the cxgb3 connection handling code programs the hardware IRD (incoming RDMA read queue depth) with the value that is passed in for the ORD (outgoing RDMA read queue depth). In particular this means that if an application passes in IRD > 0 and ORD = 0 (which is a completely sane and valid thing to do for an app that expects only incoming RDMA read requests), then the hardware will end up programmed with IRD = 0 and the app will fail in a mysterious way. Fix this by using "ep->ird" instead of "ep->ord" in the intended place. Signed-off-by: Roland Dreier <rolandd@cisco.com> Acked-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-28revert "ACPI: drivers/acpi: elide a non-zero test on a result that is never 0"Ingo Molnar
Revert commit 1192aeb957402b45f311895f124e4ca41206843c ("ACPI: drivers/acpi: elide a non-zero test on a result that is never 0") because it turns out that thermal_cooling_device_register() does actually return NULL if CONFIG_THERMAL is turned off (then the routine turns into a dummy inline routine in the header files that returns NULL unconditionally). This was found with randconfig testing, causing a crash during bootup: initcall 0x78878534 ran for 13 msecs: acpi_button_init+0x0/0x51() Calling initcall 0x78878585: acpi_fan_init+0x0/0x2c() BUG: unable to handle kernel NULL pointer dereference at 00000000 IP: [<782b8ad0>] acpi_fan_add+0x7d/0xfd *pde = 00000000 Oops: 0000 [#1] Modules linked in: Pid: 1, comm: swapper Not tainted (2.6.25-rc7-sched-devel.git-x86-latest.git #14) EIP: 0060:[<782b8ad0>] EFLAGS: 00010246 CPU: 0 EIP is at acpi_fan_add+0x7d/0xfd EAX: b787c718 EBX: b787c400 ECX: b782ceb4 EDX: 00000007 ESI: 00000000 EDI: b787c6f4 EBP: b782cee0 ESP: b782cecc DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 Process swapper (pid: 1, ti=b782c000 task=b7846000 task.ti=b782c000) Stack: b787c459 00000000 b787c400 78790888 b787c60c b782cef8 782b6fb8 ffffffda b787c60c 00000000 78790958 b782cf0c 783005d7 b787c60c 78790958 78790584 b782cf1c 783007f6 b782cf28 00000000 b782cf40 782ffc4a 78790958 b794d558 Call Trace: [<782b6fb8>] ? acpi_device_probe+0x3e/0xdb [<783005d7>] ? driver_probe_device+0x82/0xfc [<783007f6>] ? __driver_attach+0x3a/0x70 [<782ffc4a>] ? bus_for_each_dev+0x3e/0x60 [<7830048c>] ? driver_attach+0x14/0x16 [<783007bc>] ? __driver_attach+0x0/0x70 [<7830006a>] ? bus_add_driver+0x9d/0x1b0 [<783008c3>] ? driver_register+0x47/0xa3 [<7813db00>] ? timespec_to_ktime+0x9/0xc [<782b7331>] ? acpi_bus_register_driver+0x3a/0x3c [<78878592>] ? acpi_fan_init+0xd/0x2c [<78863656>] ? kernel_init+0xac/0x1f9 [<788635aa>] ? kernel_init+0x0/0x1f9 [<78114563>] ? kernel_thread_helper+0x7/0x10 ======================= Code: 6e 78 e8 57 44 e7 ff 58 e9 93 00 00 00 8b 55 f0 8d bb f4 02 00 00 80 4b 2d 10 8b 03 e8 87 cb ff ff 8d 83 18 03 00 00 80 63 2d ef <ff> 35 00 00 00 00 50 68 e8 9c 6e 78 e8 22 44 e7 ff b9 b6 9c 6e EIP: [<782b8ad0>] acpi_fan_add+0x7d/0xfd SS:ESP 0068:b782cecc ---[ end trace 778e504de7e3b1e3 ]--- Kernel panic - not syncing: Attempted to kill init! Signed-off-by: Ingo Molnar <mingo@elte.hu> Acked-by: Julia Lawall <julia@diku.dk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-28lguest: comment documentation update.Rusty Russell
Took some cycles to re-read the Lguest Journey end-to-end, fix some rot and tighten some phrases. Only comments change. No new jokes, but a couple of recycled old jokes. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-03-28lguest: Add puppies which where previously missing.Tim Ansell
lguest doesn't have features, it has puppies! Signed-off-by: Timothy R Ansell <mithro@mithis.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-03-28virtio_pci: unregister virtio device at device removeAnthony Liguori
Make sure to call unregister_virtio_device() when a virtio device is removed. Otherwise, virtio_pci.ko cannot be rmmod'd. This was spotted by Marcelo Tosatti. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-03-27Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: ACPI: drivers/acpi: elide a non-zero test on a result that is never 0 pnpacpi: reduce printk severity for "pnpacpi: exceeded the max number of ..." cpuidle: fix 100% C0 statistics regression cpuidle: fix cpuidle time and usage overflow ACPI: fix mis-merge -- invoke acpi_unlazy_tlb() only on C3 entry ACPI: fix a regression of ACPI device driver autoloading ACPI: SBS: remove typo from sbchc.c
2008-03-27ACPI: drivers/acpi: elide a non-zero test on a result that is never 0Julia Lawall
The function thermal_cooling_device_register always returns either a valid pointer or a value made with ERR_PTR, so a test for non-zero on the result will always succeed. The problem was found using the following semantic match. (http://www.emn.fr/x-info/coccinelle/) //<smpl> @a@ expression E, E1; statement S,S1; position p; @@ E = thermal_cooling_device_register(...) ... when != E = E1 if@p (E) S else S1 @n@ position a.p; expression E,E1; statement S,S1; @@ E = NULL ... when != E = E1 if@p (E) S else S1 @depends on !n@ expression E; statement S,S1; position a.p; @@ * if@p (E) S else S1 //</smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
2008-03-26Merge branches 'release', 'idle', 'redhat-bugzilla-436589', 'sbs' and ↵Len Brown
'video' into release
2008-03-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (43 commits) [IPSEC]: Fix BEET output [ICMP]: Dst entry leak in icmp_send host re-lookup code (v2). [AX25]: Remove obsolete references to BKL from TODO file. [NET]: Fix multicast device ioctl checks [IRDA]: Store irnet_socket termios properly. [UML]: uml-net: don't set IFF_ALLMULTI in set_multicast_list [VLAN]: Don't copy ALLMULTI/PROMISC flags from underlying device netxen, phy/marvell, skge: minor checkpatch fixes S2io: Handle TX completions on the same CPU as the sender for MIS-X interrupts b44: Truncate PHY address skge napi->poll() locking bug rndis_host: fix oops when query for OID_GEN_PHYSICAL_MEDIUM fails cxgb3: Fix lockdep problems with sge.reg_lock ehea: Fix IPv6 support dm9000: Support promisc and all-multi modes dm9601: configure MAC to drop invalid (crc/length) packets dm9601: add Hirose USB-100 device ID Marvell PHY m88e1111 driver fix netxen: fix rx dropped stats netxen: remove low level tx lock ...
2008-03-26Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
2008-03-26Revert "PCI: remove transparent bridge sizing"Linus Torvalds
This reverts commit 8fa5913d54f3b1e09948e6a0db34da887e05ff1f, which caused various interesting problems for people, including wrong resource allocations. See for example bugzilla entry "2.6.25-rc2: ohci1394 problem (MMIO broken)" at http://bugzilla.kernel.org/show_bug.cgi?id=10080 And Gary Hade says: "The same change had also exposed an issue reported by Paul Martin that has been causing an Oops while hotplugging ThinkPads to a ThinkPad Dock II. See http://lkml.org/lkml/2008/2/19/405 http://bugzilla.kernel.org/show_bug.cgi?id=9961 I have a fix for the ThinkPad docking Oops but if the issue being discussed here is caused by the transparent bridge sizing removal change I totally agree that it should be reverted." The transparent bridge sizing removal change was motivated by insufficient PCI memory resource for a transparent bridge window that was being created as a result of expansion ROM(s) being included in the transparent bridge sizing calculations. A later "PCI: Remove default PCI expansion ROM memory allocation" change ( re: http://lkml.org/lkml/2007/12/11/361 ) removes the expansion ROM(s) from the transparent bridge sizing calculations which actually resolves the original issue in a different manner. So, even if the "PCI: remove transparent bridge sizing" is not problematic it is no longer needed anyway." Identified-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Tested-by: Thomas Meyer <thomas@m3y3r.de> Acked-by: Gary Hade <garyhade@us.ibm.com> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-26pnpacpi: reduce printk severity for "pnpacpi: exceeded the max number of ..."Len Brown
We have been printing these messages at KERN_ERR since 2.6.24, per http://bugzilla.kernel.org/show_bug.cgi?id=9535 But KERN_ERR pops up on a console booted with "quiet" and causes users to get alarmed and file bugs about the message itself: https://bugzilla.redhat.com/show_bug.cgi?id=436589 So reduce the severity of these messages to KERN_WARNING, which is not printed by "quiet". This message will still be seen without "quiet", but a lot of messages are printed in that mode and it will be less likely to cause undue alarm. We could go all the way to KERN_DEBUG, but this is a real warning after all, so it seems prudent not to require "debug" to see it. Signed-off-by: Len Brown <len.brown@intel.com>
2008-03-26cpuidle: fix 100% C0 statistics regressionVenki Pallipadi
commit 9b12e18cdc1553de62d931e73443c806347cd974 'ACPI: cpuidle: Support C1 idle time accounting' was implicated in a 100% C0 idle regression. http://bugzilla.kernel.org/show_bug.cgi?id=10076 It pointed out a potential problem where the menu governor may get confused by the C-state residency time from poll idle or C1 idle, where this timing info is not accurate. This inaccuracy is due to interrupts being handled before we account for C-state exit. Do not mark TIME_VALID for CO poll state. Mark C1 time as valid only with the MWAIT (CSTATE_FFH) entry method. This makes governors use the timing information only when it is correct and eliminates any wrong policy decisions that may result from invalid timing information. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-03-26cpuidle: fix cpuidle time and usage overflowYi Yang
cpuidle C-state sysfs node time and usage are very easy to overflow because they are all of unsigned int type, time will overflow within about two hours, usage will take longer time to overflow, but they are increasing for ever. This patch will convert them to unsigned long long. Signed-off-by: Yi Yang <yi.y.yang@intel.com> Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-03-26ACPI: fix mis-merge -- invoke acpi_unlazy_tlb() only on C3 entryVenki Pallipadi
This original patch http://ussg.iu.edu/hypermail/linux/kernel/0712.2/1451.html was intending to add acpi_unlazy_tlb() to acpi_idle_enter_bm(), which is used for C3 entry. But it was merged incorrectly as commmit bde6f5f59c2b2b48a7a849c129d5b48838fe77ee 'x86: voluntary leave_mm before entering ACPI C3' so the call was instead added to acpi_idle_enter_simple() (which is C2 entry routine), probably due to identical context in that function. Move the call back to acpi_idle_enter_bm(). Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-03-25netxen, phy/marvell, skge: minor checkpatch fixesJeff Garzik
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-03-25S2io: Handle TX completions on the same CPU as the sender for MIS-X interruptsSreenivasa Honnur
- Handling TX completions on the same cpu as the sender. Signed-off-by: Surjit Reang <surjit.reang@neterion.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-25b44: Truncate PHY addressMichael Buesch
Some ROMs on embedded devices store incorrect values for the PHY address of the ethernet device. It looks like the number is sign-extended. Truncate the value by applying the PHY-address mask to it. The patch was tested on a bcm47xx embedded system (where the bug triggers) and a bcm4400 PCI card. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-25skge napi->poll() locking bugMarin Mitov
According to: Documentation/networking/netdevices.txt: <cite> napi->poll: .......... Context: softirq will be called with interrupts disabled by netconsole. </cite> napi->poll() could be called either with interrupts enabled (in softirq context) or disabled (by netconsole), so the irq flag should be preserved. Inspired by Ingo's resent forcedeth patch :-) Signed-off-by: Marin Mitov <mitov@issp.bas.bg> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-25rndis_host: fix oops when query for OID_GEN_PHYSICAL_MEDIUM failsJussi Kivilinna
When query for OID_GEN_PHYSICAL_MEDIUM fails, uninitialized pointer 'phym' is being accessed in generic_rndis_bind(), resulting OOPS. Patch fixes phym to be initialized and setup correctly when rndis_query() for physical medium fails. Bug was introduced by following commit: commit 039ee17d1baabaa21783a0d5ab3e8c6d8c794bdf Author: Jussi Kivilinna <jussi.kivilinna@mbnet.fi> Date: Sun Jan 27 23:34:33 2008 +0200 Reported-by: Dmitri Monakhov <dmonakhov@openvz.org> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-25cxgb3: Fix lockdep problems with sge.reg_lockRoland Dreier
Using iWARP with a Chelsio T3 NIC generates the following lockdep warning: ================================= [ INFO: inconsistent lock state ] 2.6.25-rc6 #50 --------------------------------- inconsistent {softirq-on-W} -> {in-softirq-W} usage. swapper/0 [HC0[0]:SC1[1]:HE0:SE0] takes: (&adap->sge.reg_lock){-+..}, at: [<ffffffff880e5ee2>] cxgb_offload_ctl+0x3af/0x507 [cxgb3] The problem is that reg_lock is used with plain spin_lock() in drivers/net/cxgb3/sge.c but is used with spin_lock_irqsave() in drivers/net/cxgb3/cxgb3_offload.c. This is technically a false positive, since the uses in sge.c are only in the initialization and cleanup paths and cannot overlap with any use in interrupt context. The best fix is probably just to use spin_lock_irq() with reg_lock in sge.c. Even though it's not strictly required for correctness, it avoids triggering lockdep and the extra overhead of disabling interrupts is not important at all in the initialization and cleanup slow paths. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-25ehea: Fix IPv6 supportThomas Klein
Indicate that HEA calculates IPv4 checksums only Signed-off-by: Thomas Klein <tklein@de.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-25dm9000: Support promisc and all-multi modesPeter Korsgaard
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-25dm9601: configure MAC to drop invalid (crc/length) packetsPeter Korsgaard
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-25dm9601: add Hirose USB-100 device IDPeter Korsgaard
The Hirose USB-100 adapter uses a dm9601 chip. Reported by Robert Brockway. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-25Marvell PHY m88e1111 driver fixAlexandr Smirnov
Marvell PHY m88e1111 (not sure about other models, but think they too) works in two modes: fiber and copper. In Marvell PHY driver (that we have in current community kernels) code supported only copper mode, and this is not configurable, bits for copper mode are simply written in registers during PHY initialization. This patch adds support for both modes. Signed-off-by: Alexandr Smirnov <asmirnov@ru.mvista.com> Acked-by: Andy Fleming <afleming@freescale.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-25netxen: fix rx dropped statsDhananjay Phadke
Don't count rx dropped packets based on return value of netif_receive_skb(), which is misleading. Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com> Tested-by: Vernon Mauery <mauery@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-25netxen: remove low level tx lockDhananjay Phadke
o eliminate tx lock in netxen adapter struct, instead pound on netdev tx lock appropriately. o remove old "concurrent transmit" code that unnecessarily drops and reacquires tx lock in hard_xmit_frame(), this is already serialized the netdev xmit lock. o reduce scope of tx lock in tx cleanup. tx cleanup operates on different section of the ring than transmitting cpus and is guarded by producer and consumer indices. This fixes a race caused by rx softirq preemption on realtime kernels. Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com> Tested-by: Vernon Mauery <mauery@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-25netxen: napi and irq cleanupDhananjay Phadke
o separate and simpler irq handler for msi interrupts, avoids few checks than legacy mode. o avoid redudant tx_has_work() and rx_has_work() checks in interrupt and napi, which can uncork irq based on racy (lockless) access to tx and rx ring indices. If we get interrupt, there's sufficient reason to schedule napi. o replenish rx ring more often, remove self-imposed threshold rcv_free that prevents posting rx desc to card. This improves performance in low memory. Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com> Tested-by: Vernon Mauery <mauery@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-25netxen: improve msi supportDhananjay Phadke
Recent netxen firmware has new scheme of generating MSI interrupts, it raises interrupt and blocks itself, waiting for driver to unmask. This reduces chance of spurious interrupts. The driver will be able to deal with older firmware as well. Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com> Tested-by: Vernon Mauery <mauery@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-25smc91x: fix build breakage from the SMC_GET_MAC_ADDR API upgradeBryan Wu
Cc: Jeff Garzik <jeff@garzik.org> Cc: Deepak Saxena <dsaxena@plexity.net> Cc: Nicolas Pitre <nico@cam.org> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-25ixgb: remove unused variableJulia Lawall
The variable num_group_tail_writes is initialized but never used otherwise. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ type T; identifier i; constant C; @@ ( extern T i; | - T i; <+... when != i - i = C; ...+> ) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-25e100: endianness annotationsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-25igb trivial annotationsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-25igb: endianness fixAl Viro
le16_to_cpu() should be done before mask and shift... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-25bonding: update versionJay Vosburgh
Update version to 3.2.5. Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-25bonding: Fix sysfs attribute handlingLibor Pechacek
For bonding interfaces any attempt to read the sysfs directory contents after module removal results in an oops. The fix is to release sysfs attributes for the interfaces upon module unload. Signed-off-by: Libor Pechacek <lpechacek@suse.cz> Acked-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-25bonding: fix two compiler warningsJay Vosburgh
Fix two compiler warnings that are new with recent versions of gcc (apparently 4.2 and up). One is fixed by refactoring; this change was supplied by Stephen Hemminger. The other was fixed by labelling the variable as uninitialized_var() after confirming via inspection that it cannot actually be used uninitialized. Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2008-03-25bonding: Fix locking in 802.3ad modeJay Vosburgh
The 802.3ad state machine lock can be acquired in both softirq and not softirq context, but was not held at _bh to prevent a deadlock (which could occur if a LACPDU arrived and was processed while the lock was held). Corrected this, now hold the state machine lock at _bh to prevent deadlock. Bug reported by Todd Fleisher <todd@fleish.org>. Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
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