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* drivers/char/random.c: fix a race which can lead to a bogus BUG()Andrew Morton2008-09-021-9/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix a bug reported by and diagnosed by Aaron Straus. This is a regression intruduced into 2.6.26 by commit adc782dae6c4c0f6fb679a48a544cfbcd79ae3dc Author: Matt Mackall <mpm@selenic.com> Date: Tue Apr 29 01:03:07 2008 -0700 random: simplify and rename credit_entropy_store credit_entropy_bits() does: spin_lock_irqsave(&r->lock, flags); ... if (r->entropy_count > r->poolinfo->POOLBITS) r->entropy_count = r->poolinfo->POOLBITS; so there is a time window in which this BUG_ON(): static size_t account(struct entropy_store *r, size_t nbytes, int min, int reserved) { unsigned long flags; BUG_ON(r->entropy_count > r->poolinfo->POOLBITS); /* Hold lock while accounting */ spin_lock_irqsave(&r->lock, flags); can trigger. We could fix this by moving the assertion inside the lock, but it seems safer and saner to revert to the old behaviour wherein entropy_store.entropy_count at no time exceeds entropy_store.poolinfo->POOLBITS. Reported-by: Aaron Straus <aaron@merfinllc.com> Cc: Matt Mackall <mpm@selenic.com> Cc: Theodore Ts'o <tytso@mit.edu> Cc: <stable@kernel.org> [2.6.26.x] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* tty: Fix termios tty window resize race with pty/tty pairAlan Cox2008-08-271-3/+4
| | | | | | | | | | | | | | Kanru Chen posted a patch versus the old code which deals with the case where you resize the pty side of a pty/tty pair. In that situation the termios data is updated for both pty and tty but the locks are not held for the right side. This implements the fix differently against the updated tty code. Patch by self but the hard bit (noticing and fixing the bug) is thanks to Kanru Chen. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* tty: TIOCGSOFTCAR/SSOFTCAR on pty is wronAlan Cox2008-08-271-2/+4
| | | | | | | | The termios settings ioctls on a pty should affect the bound tty side not the pty. The SOFTCAR ioctls use the wrong device file. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* removed unused #include <linux/version.h>'sAdrian Bunk2008-08-233-3/+0
| | | | | | | | This patch lets the files using linux/version.h match the files that #include it. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* drivers/char/ipmi/ipmi_si_intf.c:default_find_bmc(): fix leakAndrew Morton2008-08-201-5/+3
| | | | | | | | | | | | | | | If check_legacy_ioport() returns true, we leak *info. Addresses http://bugzilla.kernel.org/show_bug.cgi?id=11362 Reported-by: Daniel Marjamki <danielm77@spray.se> Cc: Christian Krafft <krafft@de.ibm.com> Cc: Michael Ellerman <michael@ellerman.id.au> Cc: Corey Minyard <minyard@acm.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2008-08-191-0/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (94 commits) pkt_sched: Prevent livelock in TX queue running. Revert "pkt_sched: Add BH protection for qdisc_stab_lock." Revert "pkt_sched: Protect gen estimators under est_lock." pkt_sched: remove bogus block (cleanup) nf_nat: use secure_ipv4_port_ephemeral() for NAT port randomization netfilter: ctnetlink: sleepable allocation with spin lock bh netfilter: ctnetlink: fix sleep in read-side lock section netfilter: ctnetlink: fix double helper assignation for NAT'ed conntracks netfilter: ipt_addrtype: Fix matching of inverted destination address type dccp: Fix panic caused by too early termination of retransmission mechanism pkt_sched: Don't hold qdisc lock over qdisc_destroy(). pkt_sched: Add lockdep annotation for qdisc locks pkt_sched: Never schedule non-root qdiscs. removed unused #include <version.h> rt2x00: Fix txdone_entry_desc_flags b43: Fix for another Bluetooth Coexistence SPROM Programming error for BCM4306 mac80211: remove kdoc references to IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE p54u: reset skb's data/tail pointer on requeue p54: move p54_vdcf_init to the right place. iwlwifi: fix printk newlines ...
| * nf_nat: use secure_ipv4_port_ephemeral() for NAT port randomizationStephen Hemminger2008-08-181-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Use incoming network tuple as seed for NAT port randomization. This avoids concerns of leaking net_random() bits, and also gives better port distribution. Don't have NAT server, compile tested only. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> [ added missing EXPORT_SYMBOL_GPL ] Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | removed unused #include <version.h>Huang Weiyi2008-08-163-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | The drivers below do not use LINUX_VERSION_CODE nor KERNEL_VERSION. drivers/char/pcmcia/ipwireless/tty.c drivers/char/synclink_gt.c drivers/char/xilinx_hwicap/xilinx_hwicap.c This patch removes the said #include <version.h>. Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | tty: remove resize window special caseAlan Cox2008-08-153-53/+105
|/ | | | | | | | | This moves it to being a tty operation. That removes special cases and now also means that resize can be picked up by um and other non vt consoles which may have a resize operation. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* crypto: padlock - fix VIA PadLock instruction usage with irq_ts_save/restore()Suresh Siddha2008-08-131-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Wolfgang Walter reported this oops on his via C3 using padlock for AES-encryption: ################################################################## BUG: unable to handle kernel NULL pointer dereference at 000001f0 IP: [<c01028c5>] __switch_to+0x30/0x117 *pde = 00000000 Oops: 0002 [#1] PREEMPT Modules linked in: Pid: 2071, comm: sleep Not tainted (2.6.26 #11) EIP: 0060:[<c01028c5>] EFLAGS: 00010002 CPU: 0 EIP is at __switch_to+0x30/0x117 EAX: 00000000 EBX: c0493300 ECX: dc48dd00 EDX: c0493300 ESI: dc48dd00 EDI: c0493530 EBP: c04cff8c ESP: c04cff7c DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068 Process sleep (pid: 2071, ti=c04ce000 task=dc48dd00 task.ti=d2fe6000) Stack: dc48df30 c0493300 00000000 00000000 d2fe7f44 c03b5b43 c04cffc8 00000046 c0131856 0000005a dc472d3c c0493300 c0493470 d983ae00 00002696 00000000 c0239f54 00000000 c04c4000 c04cffd8 c01025fe c04f3740 00049800 c04cffe0 Call Trace: [<c03b5b43>] ? schedule+0x285/0x2ff [<c0131856>] ? pm_qos_requirement+0x3c/0x53 [<c0239f54>] ? acpi_processor_idle+0x0/0x434 [<c01025fe>] ? cpu_idle+0x73/0x7f [<c03a4dcd>] ? rest_init+0x61/0x63 ======================= Wolfgang also found out that adding kernel_fpu_begin() and kernel_fpu_end() around the padlock instructions fix the oops. Suresh wrote: These padlock instructions though don't use/touch SSE registers, but it behaves similar to other SSE instructions. For example, it might cause DNA faults when cr0.ts is set. While this is a spurious DNA trap, it might cause oops with the recent fpu code changes. This is the code sequence that is probably causing this problem: a) new app is getting exec'd and it is somewhere in between start_thread() and flush_old_exec() in the load_xyz_binary() b) At pont "a", task's fpu state (like TS_USEDFPU, used_math() etc) is cleared. c) Now we get an interrupt/softirq which starts using these encrypt/decrypt routines in the network stack. This generates a math fault (as cr0.ts is '1') which sets TS_USEDFPU and restores the math that is in the task's xstate. d) Return to exec code path, which does start_thread() which does free_thread_xstate() and sets xstate pointer to NULL while the TS_USEDFPU is still set. e) At the next context switch from the new exec'd task to another task, we have a scenarios where TS_USEDFPU is set but xstate pointer is null. This can cause an oops during unlazy_fpu() in __switch_to() Now: 1) This should happen with or with out pre-emption. Viro also encountered similar problem with out CONFIG_PREEMPT. 2) kernel_fpu_begin() and kernel_fpu_end() will fix this problem, because kernel_fpu_begin() will manually do a clts() and won't run in to the situation of setting TS_USEDFPU in step "c" above. 3) This was working before the fpu changes, because its a spurious math fault which doesn't corrupt any fpu/sse registers and the task's math state was always in an allocated state. With out the recent lazy fpu allocation changes, while we don't see oops, there is a possible race still present in older kernels(for example, while kernel is using kernel_fpu_begin() in some optimized clear/copy page and an interrupt/softirq happens which uses these padlock instructions generating DNA fault). This is the failing scenario that existed even before the lazy fpu allocation changes: 0. CPU's TS flag is set 1. kernel using FPU in some optimized copy routine and while doing kernel_fpu_begin() takes an interrupt just before doing clts() 2. Takes an interrupt and ipsec uses padlock instruction. And we take a DNA fault as TS flag is still set. 3. We handle the DNA fault and set TS_USEDFPU and clear cr0.ts 4. We complete the padlock routine 5. Go back to step-1, which resumes clts() in kernel_fpu_begin(), finishes the optimized copy routine and does kernel_fpu_end(). At this point, we have cr0.ts again set to '1' but the task's TS_USEFPU is stilll set and not cleared. 6. Now kernel resumes its user operation. And at the next context switch, kernel sees it has do a FP save as TS_USEDFPU is still set and then will do a unlazy_fpu() in __switch_to(). unlazy_fpu() will take a DNA fault, as cr0.ts is '1' and now, because we are in __switch_to(), math_state_restore() will get confused and will restore the next task's FP state and will save it in prev tasks's FP state. Remember, in __switch_to() we are already on the stack of the next task but take a DNA fault for the prev task. This causes the fpu leakage. Fix the padlock instruction usage by calling them inside the context of new routines irq_ts_save/restore(), which clear/restore cr0.ts manually in the interrupt context. This will not generate spurious DNA in the context of the interrupt which will fix the oops encountered and the possible FPU leakage issue. Reported-and-bisected-by: Wolfgang Walter <wolfgang.walter@stwm.de> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* drivers/char/rtc.c: removed duplicated includeHuang Weiyi2008-08-121-1/+0
| | | | | | Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linusLinus Torvalds2008-08-121-3/+2
|\ | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: fix spinlock recursion in hvc_console stop_machine: remove unused variable modules: extend initcall_debug functionality to the module loader export virtio_rng.h lguest: use get_user_pages_fast() instead of get_user_pages() mm: Make generic weak get_user_pages_fast and EXPORT_GPL it lguest: don't set MAC address for guest unless specified
| * fix spinlock recursion in hvc_consoleChristian Borntraeger2008-08-121-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 611e097d7707741a336a0677d9d69bec40f29f3d Author: Christian Borntraeger <borntraeger@de.ibm.com> hvc_console: rework setup to replace irq functions with callbacks introduced a spinlock recursion problem. request_irq tries to call the handler if the IRQ is shared. The irq handler of hvc_console calls hvc_poll and hvc_kill which might take the hvc_struct spinlock. Therefore, we have to call request_irq outside the spinlock. We can move the notifier_add safely outside the spinlock as ->data must not be changed by the backend. Otherwise, tty_hangup would fail anyway. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* | agp: fix SIS 5591/5592 wrong PCI idKrzysztof Helt2008-08-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The correct id is the id of the main host (5591) not the id of the PCI-to-PCI bridge AGP (0001). Output from "lspci -nv" shows that only the former has AGP capabilities flag set: 00:00.0 0600: 1039:5591 (rev 02) Flags: bus master, medium devsel, latency 64 Memory at ec000000 (32-bit, non-prefetchable) [size=32M] Capabilities: [c0] AGP version 1.0 00:02.0 0604: 1039:0001 (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=01, subordinate=01, sec-latency=0 I/O behind bridge: 0000c000-0000cfff Memory behind bridge: eb500000-eb5fffff Prefetchable memory behind bridge: eb300000-eb3fffff Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Dave Airlie <airlied@redhat.com>
* | intel/agp: rewrite GTT on resumeKeith Packard2008-08-124-0/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On my Intel chipset (965GM), the GTT is entirely erased across suspend/resume. This patch simply re-plays the current mapping at resume time to restore the table.=20 I noticed this once I started relying on persistent GTT mappings across VT switch in our GEM work -- the old X server and DRM code carefully unbind all memory from the GTT on VT switch, but GEM does not bother. I placed the list management and rewrite code in the generic layer on the assumption that it will be needed on other hardware, but I did not add the rewrite call to anything other than the Intel resume function. Keep a list of current GATT mappings. At resume time, rewrite them into the GATT. This is needed on Intel (at least) as the entire GATT is cleared across suspend/resume. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Keith Packard <keithp@keithp.com> Cc: Dave Jones <davej@codemonkey.org.uk> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
* | agp: use dev_printk when possibleBjorn Helgaas2008-08-1211-134/+141
| | | | | | | | | | | | | | | | Convert printks to use dev_printk(). Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
* | amd64-agp: run fallback when no bridges found, not when driver registration ↵Bjorn Helgaas2008-08-121-2/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fails I think the intent was that if no bridges matched agp_amd64_pci_table[], we would fall back to checking for any bridge with the AGP capability. But in the current code, we execute the fallback path only when pci_register_driver() itself fails, which is unrelated to whether any matching devices were found. This patch counts the AGP bridges found in the probe() method and executes the fallback path when none is found. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
* | intel_agp: official name for GM45 chipsetZhenyu Wang2008-08-121-7/+7
|/ | | | | | | Signed-off-by: Zhenyu Wang <zhenyu.z.wang@intel.com> Cc: Dave Airlie <airlied@linux.ie> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
* Fix race/oops in tty layer after BKL pushdownChristian Borntraeger2008-08-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While testing our KVM code for s390 (starting and killall kvm in a loop) I can reproduce the following oops: Unable to handle kernel pointer dereference at virtual kernel address 6b6b6b6b6b6b6000 Oops: 0038 [#1] SMP Modules linked in: dm_multipath sunrpc qeth_l3 qeth_l2 dm_mod qeth ccwgroup CPU: 1 Not tainted 2.6.27-rc1 #54 Process kuli (pid: 4409, task: 00000000b6aa5940, ksp: 00000000b7343e10) Krnl PSW : 0704e00180000000 00000000002e0b8c (disassociate_ctty+0x1c0/0x288) R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:2 PM:0 EA:3 Krnl GPRS: 0000000000000000 6b6b6b6b6b6b6b6b 0000000000000001 00000000000003a6 00000000002e0a46 00000000004b4160 0000000000000001 00000000bbd79758 00000000b7343e58 00000000b8854148 00000000bd34dea0 00000000b7343c20 0000000000000001 00000000004b6d08 00000000002e0a46 00000000b7343c20 Krnl Code: 00000000002e0b7e: eb9fb0a00004 lmg %r9,%r15,160(%r11) 00000000002e0b84: 07f4 bcr 15,%r4 00000000002e0b86: e31090080004 lg %r1,8(%r9) >00000000002e0b8c: d501109cd000 clc 156(2,%r1),0(%r13) 00000000002e0b92: a784ff5d brc 8,2e0a4c 00000000002e0b96: b9040029 lgr %r2,%r9 00000000002e0b9a: c0e5fffff9c3 brasl %r14,2dff20 00000000002e0ba0: a7f4ff56 brc 15,2e0a4c Call Trace: ([<00000000002e0a46>] disassociate_ctty+0x7a/0x288) [<0000000000141fe6>] do_exit+0x212/0x8d4 [<0000000000142708>] do_group_exit+0x60/0xcc [<0000000000150660>] get_signal_to_deliver+0x270/0x3ac [<000000000010bfd6>] do_signal+0x8e/0x8dc [<0000000000113772>] sysc_sigpending+0xe/0x22 [<000001ff0000b134>] 0x1ff0000b134 INFO: lockdep is turned off. Last Breaking-Event-Address: [<00000000002e0a48>] disassociate_ctty+0x7c/0x288 Kernel panic - not syncing: Fatal exception: panic_on_oops It seems that tty was already free in disassocate_ctty when it tries to dereference tty->driver. After moving the lock_kernel before the mutex_unlock, I can no longer reproduce the problem. [ This is a temporary partial fix for the documented and long standing race in disassociate_tty. This stops most problem cases for now. For the next release the -next tree has an initial implementation of kref counting for tty structures and this quickfix will be dropped. - Alan ] Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by; Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'for-linus-merged' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2008-08-082-2/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus-merged' of master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 5177/1: arm/mach-sa1100/Makefile: remove CONFIG_SA1100_USB [ARM] 5166/1: magician: add MAINTAINERS entry [ARM] fix pnx4008 build errors [ARM] Fix SMP booting with non-zero PHYS_OFFSET [ARM] 5185/1: Fix spi num_chipselect for lubbock [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach [ARM] Add support for arch/arm/mach-*/include and arch/arm/plat-*/include [ARM] Remove asm/hardware.h, use asm/arch/hardware.h instead [ARM] Eliminate useless includes of asm/mach-types.h [ARM] Fix circular include dependency with IRQ headers avr32: Use <mach/foo.h> instead of <asm/arch/foo.h> avr32: Introduce arch/avr32/mach-*/include/mach avr32: Move include/asm-avr32 to arch/avr32/include/asm [ARM] sa1100_wdt: use reset_status to remember watchdog reset status [ARM] pxa: introduce reset_status and clear_reset_status for driver's usage [ARM] pxa: introduce reset.h for reset specific header information
| * Merge Linus' latest into masterRussell King2008-08-084-1174/+2
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: drivers/watchdog/at91rm9200_wdt.c drivers/watchdog/davinci_wdt.c drivers/watchdog/ep93xx_wdt.c drivers/watchdog/ixp2000_wdt.c drivers/watchdog/ixp4xx_wdt.c drivers/watchdog/ks8695_wdt.c drivers/watchdog/omap_wdt.c drivers/watchdog/pnx4008_wdt.c drivers/watchdog/sa1100_wdt.c drivers/watchdog/wdt285.c
| * | [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/machRussell King2008-08-072-2/+2
| | | | | | | | | | | | | | | | | | This just leaves include/asm-arm/plat-* to deal with. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixesRussell King2008-08-0715-219/+237
| |\ \
| * | | [ARM] Remove asm/hardware.h, use asm/arch/hardware.h insteadRussell King2008-08-072-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove includes of asm/hardware.h in addition to asm/arch/hardware.h. Then, since asm/hardware.h only exists to include asm/arch/hardware.h, update everything to directly include asm/arch/hardware.h and remove asm/hardware.h. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2008-08-084-17/+0
|\ \ \ \ | |_|_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (99 commits) pkt_sched: Fix actions referencing bnx2x: fix logical op tcp: (whitespace only) fix confusing indentation pkt_sched: Fix qdisc config when link is down. [Bluetooth] Add full quirk implementation for btusb driver [Bluetooth] Removal of unnecessary ignore module parameter [Bluetooth] Add parameters to control BNEP header compression ath9k: Revamp wireless mode usage ath9k: More unused macros ath9k: Remove a few unused macros and fix indentation ath9k: Use mac80211's band macros and remove enum hal_freq_band ath9k: Remove redundant data structure ath9k_txq_info ath9k: Cleanup data structures related to HW capabilities ath9k: work around gcc ICEs ath9k: Add new Atheros IEEE 802.11n driver ath5k: remove Atheros 11n devices from supported list list.h: add list_cut_position() list.h: Add list_splice_tail() and list_splice_tail_init() p54: swap short slot time dcf values rt2x00: Block all unsupported modes ...
| * | | Merge branch 'for-jeff' of ↵Jeff Garzik2008-08-074-17/+0
| |\ \ \ | | |_|/ | |/| | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6 into tmp
| | * | Remove bogus dosyncppp variable from synclink drivers.Krzysztof Hałasa2008-07-234-17/+0
| | | | | | | | | | | | | | | | Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
* | | | powerpc/iseries: remove the old viocons driverStephen Rothwell2008-08-073-1169/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This driver was declared obsolete over 2 years ago, the alternative console driver for legacy iSeries (hvc_iseries) was made the default over 1 year ago and this driver has been build broken for over 3 months, so remove it. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | iSeries: Fix up viotty_ioctl BKL locking falloutLinus Torvalds2008-08-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The bogus code to call into the n_tty layer got removed in commit 8bc5fb6abb670fa9079cd1994f016a39f99698fe ("Remove bogons from the iSeries console"), but it left a now uninitialized "return ret;" around. Not that this code has ever even compiled since the BKL pushdown, since not only is "ret" no longer initialized, it was never actually declared even originally. Replace it with a "return -ENOIOCTLCMD" Pointed-out-by: Paul Mackerras <paulus@samba.org> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | m68k/amiserial: fix fallout of tty break handling reworkGeert Uytterhoeven2008-08-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 9e98966c7bb94355689478bc84cc3e0c190f977e (tty: rework break handling) forgot to update one exit point of rs_break() in the Amiga serial driver. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | Remove bogons from the iSeries consoleAlan Cox2008-08-061-4/+0
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The iSeries driver calls into the n_tty ldisc code directly for some bizarre reason. I previously tagged this with a query but this actually does need fixing as n_tty methods when you have a different ldisc set are not a good thing to call. In n_tty mode this change should have no effect, the core tty layer has always called the ldisc ioctl method *anyway* and will call the one for the right ldisc. Signed-off-by: Alan Cox <alan@redhat.com> Acked-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Merge branch 'merge' of ↵Linus Torvalds2008-08-042-2/+2
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: powerpc: Remove use of CONFIG_PPC_MERGE powerpc: Force printing of 'total_memory' to unsigned long long powerpc: Fix compiler warning in arch/powerpc/mm/mem.c powerpc: Move include files to arch/powerpc/include/asm
| * | | powerpc: Move include files to arch/powerpc/include/asmStephen Rothwell2008-08-042-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | from include/asm-powerpc. This is the result of a mkdir arch/powerpc/include/asm git mv include/asm-powerpc/* arch/powerpc/include/asm Followed by a few documentation/comment fixups and a couple of places where <asm-powepc/...> was being used explicitly. Of the latter only one was outside the arch code and it is a driver only built for powerpc. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | | | vt: Deadlock workaroundAlan Cox2008-08-041-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2.6.26 corrected the mutex locking on tty resizing to fix the case where you could get the tty/vt sizing out of sync. That turns out to have a deadlock. The actual fix is really major and I've got it lined up as part of the ops changes for 2.6.28 so for 2.6.26/2.6.27 it is safer to reintroduce this ages old minor bug. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | drivers/char/efirtc.c: removed duplicated #includeHuang Weiyi2008-08-041-1/+0
|/ / / | | | | | | | | | | | | | | | | | | | | | Removed duplicated include <linux/smp_lock.h> in drivers/char/efirtc.c. Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | try harder to load tty ldisc driverEugeniy Meshcheryakov2008-08-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently function tty_ldisc_get() tries to load an ldisc driver module only when tty_ldisc_try_get() returns -EAGAIN. This happens only if module is being unloaded. If ldisc module is not loaded tty_ldisc_try_get() returns -EINVAL and this case is not handled in tty_ldisc_get(), so request_module() is not called. Attached patch fixes this by calling request_module() if tty_ldisc_try_get() returned any error code. I discovered this when my UMTS modem stopped working with 2.6.27-rc1 because module ppp_async was not loaded. Signed-off-by: Eugeniy Meshcheryakov <eugen@debian.org> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Merge branch 'merge' of ↵Linus Torvalds2008-07-301-2/+2
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc/mm: Lockless get_user_pages_fast() for 64-bit (v3) powerpc: Don't use the wrong thread_struct for ptrace get/set VSX regs powerpc: Fix ptrace buffer size for VSX powerpc: Correctly hookup PTRACE_GET/SETVSRREGS for 32 bit processes ide/powermac: Fix use of uninitialized pointer on media-bay powerpc: Allow non-hcall return values for lparcfg writes ipmi/powerpc: Use linux/of_{device,platform}.h instead of asm powerpc/fsl: proliferate simple-bus compatibility to soc nodes Documentation: remove old sbc8260 board specific information cpm2: Rework baud rate generators configuration to support external clocks. powerpc: rtc_cmos_setup: assign interrupts only if there is i8259 PIC cpm_uart: Add generic clock API support to set baudrates cpm_uart: Modem control lines support powerpc: implement GPIO LIB API on CPM1 Freescale SoC. cpm2: Implement GPIO LIB API on CPM2 Freescale SoC. powerpc: Fix 8xx build failure powerpc: clean up the Book-E HW watchpoint support
| * | | ipmi/powerpc: Use linux/of_{device,platform}.h instead of asmStephen Rothwell2008-07-301-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Drivers should not include the asm variants anymore Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | | | Char: mxser, ratelimit ioctl warningJiri Slaby2008-07-301-2/+4
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | The GET_MAJOR ioctl prints out a warning, make it ratelimited. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | ipwireless: fix compile failureJames Bottomley2008-07-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There's a brown paper bag compile failure introduced by this patch commit a01386924874c4d6d67f8a34e66f04452c2abb69 Author: David Sterba <dsterba@suse.cz> Date: Mon Jul 28 16:53:32 2008 +0200 ipwireless: Preallocate received packet buffers with MRU size Really, it can't ever have been even compile tested. It looks like the closing bracket is in the wrong place, so this is the fix. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linusLinus Torvalds2008-07-281-3/+3
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: stop_machine: fix up ftrace.c stop_machine: Wean existing callers off stop_machine_run() stop_machine(): stop_machine_run() changed to use cpu mask Hotplug CPU: don't check cpu_online after take_cpu_down Simplify stop_machine stop_machine: add ALL_CPUS option module: fix build warning with !CONFIG_KALLSYMS
| * | | stop_machine: Wean existing callers off stop_machine_run()Rusty Russell2008-07-281-3/+3
| | | | | | | | | | | | | | | | Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* | | | ipwireless: Preallocate received packet buffers with MRU sizeDavid Sterba2008-07-283-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ipwireless: Preallocate received packet buffers with MRU size Packets are assembled from link size (~300 bytes) up to PPP MRU (1500 by default). Try to preallocate full size rather than repeatedly advance buffer size by 256 bytes. Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | ipwireless: Put packets to pool startDavid Sterba2008-07-281-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ipwireless: Put packets to pool start Put packets to pool start, try to reuse cached memory. Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | ipwireless: Increase PPP outgoing queue sizeDavid Sterba2008-07-282-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ipwireless: Increase PPP outgoing queue size Increase default size of PPP outgoing queue. Currently set to 1, which means that a packet quickly following another pushed by PPP must wait until hardware actually sends the previous and PPP has to be waken up by ppp_wakeup(). This slows down upstream. Now PPP can push more packets at once which get buffered inside driver and pushed immediatelly to hardware when previous packet is out. Experiments show that size = 10 is quite good for all connection types (GPRS/EDGE/UMTS) and gains 4 KB/sec of upload for UMTS for batch uploads. Need for higher queue size than 10 occures in only < 0.1 % of cases. Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | ipwireless: Explicitly request io and mem regionsDavid Sterba2008-07-282-34/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ipwireless: Explicitly request io and mem regions Documentation/pcmcia/driver-changes.txt says, that driver should call request_region for used memory/io regions since PCMCIA does not do this (since 2.6.8). Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | ipwireless: Constify buffer variablesDavid Sterba2008-07-283-14/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ipwireless: Constify buffer variables Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | ipwireless: Do not return value from sending funcsDavid Sterba2008-07-281-12/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ipwireless: Do not return value from sending funcs Do not return value from do_send_fragment and do_send_packet, it's not used. The packet size checks are not useful too: * zero length packet will never be sent, caller always passes packet_header size which is either 1 or 3 * MTU check is done in caller, no need to repeat Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | ipwireless: Remove endian-dependent bitfieldsDavid Sterba2008-07-281-13/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ipwireless: Remove endian-dependent bitfields Remove endian-dependent bitfields and use bitmasks to transform packet header bitfields from/to machine order. Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | ipwireless: Glue splitted printk strings backDavid Sterba2008-07-282-18/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ipwireless: Glue splitted printk strings back Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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