21 Feb, 2012

30 commits

  • Greg Kroah-Hartman
     
  • commit f2ea0f5f04c97b48c88edccba52b0682fbe45087 upstream.

    Use standard ror64() instead of hand-written.
    There is no standard ror64, so create it.

    The difference is shift value being "unsigned int" instead of uint64_t
    (for which there is no reason). gcc starts to emit native ROR instructions
    which it doesn't do for some reason currently. This should make the code
    faster.

    Patch survives in-tree crypto test and ping flood with hmac(sha512) on.

    Signed-off-by: Alexey Dobriyan
    Signed-off-by: Herbert Xu
    Signed-off-by: Greg Kroah-Hartman

    Alexey Dobriyan
     
  • commit 207d543f472c1ac9552df79838dc807cbcaa9740 upstream.

    Signed-off-by: Stefano Stabellini
    Signed-off-by: Konrad Rzeszutek Wilk
    Signed-off-by: Greg Kroah-Hartman

    Stefano Stabellini
     
  • commit f9c2a0dc42a6938ff2a80e55ca2bbd1d5581c72e upstream.

    Current PIO mode makes a kernel crash with CONFIG_HIGHMEM.
    Highmem pages have a NULL from sg_virt(sg).
    This patch fixes the following problem.

    Unable to handle kernel NULL pointer dereference at virtual address 00000000
    pgd = c0004000
    [00000000] *pgd=00000000
    Internal error: Oops: 817 [#1] PREEMPT SMP
    Modules linked in:
    CPU: 0 Not tainted (3.0.15-01423-gdbf465f #589)
    PC is at dw_mci_pull_data32+0x4c/0x9c
    LR is at dw_mci_read_data_pio+0x54/0x1f0
    pc : [] lr : [] psr: 20000193
    sp : c0619d48 ip : c0619d70 fp : c0619d6c
    r10: 00000000 r9 : 00000002 r8 : 00001000
    r7 : 00000200 r6 : 00000000 r5 : e1dd3100 r4 : 00000000
    r3 : 65622023 r2 : 0000007f r1 : eeb96000 r0 : e1dd3100
    Flags: nzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment
    xkernel
    Control: 10c5387d Table: 61e2004a DAC: 00000015
    Process swapper (pid: 0, stack limit = 0xc06182f0)
    Stack: (0xc0619d48 to 0xc061a000)
    9d40: e1dd3100 e1a4f000 00000000 e1dd3100 e1a4f000 00000200
    9d60: c0619da4 c0619d70 c035988c c03587e4 c0619d9c e18158f4 e1dd3100 e1dd3100
    9d80: 00000020 00000000 00000000 00000020 c06e8a84 00000000 c0619e04 c0619da8
    9da0: c0359b24 c0359844 e18158f4 e1dd3164 e1dd3168 e1dd3150 3d02fc79 e1dd3154
    9dc0: e1dd3178 00000000 00000020 00000000 e1dd3150 00000000 c10dd7e8 e1a84900
    9de0: c061e7cc 00000000 00000000 0000008d c06e8a84 c061e780 c0619e4c c0619e08
    9e00: c00c4738 c0359a34 3d02fc79 00000000 c0619e4c c05a1698 c05a1670 c05a165c
    9e20: c04de8b0 c061e780 c061e7cc e1a84900 ffffed68 0000008d c0618000 00000000
    9e40: c0619e6c c0619e50 c00c48b4 c00c46c8 c061e780 c00423ac c061e7cc ffffed68
    9e60: c0619e8c c0619e70 c00c7358 c00c487c 0000008d ffffee38 c0618000 ffffed68
    9e80: c0619ea4 c0619e90 c00c4258 c00c72b0 c00423ac ffffee38 c0619ecc c0619ea8
    9ea0: c004241c c00c4234 ffffffff f8810000 0000006d 00000002 00000001 7fffffff
    9ec0: c0619f44 c0619ed0 c0048bc0 c00423c4 220ae7a9 00000000 386f0d30 0005d3a4
    9ee0: c00423ac c10dd0b8 c06f2cd8 c0618000 c0594778 c003a674 7fffffff c0619f44
    9f00: 386f0d30 c0619f18 c00a6f94 c005be3c 80000013 ffffffff 386f0d30 0005d3a4
    9f20: 386f0d30 0005d2d1 c10dd0a8 c10dd0b8 c06f2cd8 c0618000 c0619f74 c0619f48
    9f40: c0345858 c005be00 c00a2440 c0618000 c0618000 c00410d8 c06c1944 c00410fc
    9f60: c0594778 c003a674 c0619f9c c0619f78 c004a7e8 c03457b4 c0618000 c06c18f8
    9f80: 00000000 c0039c70 c06c18d4 c003a674 c0619fb4 c0619fa0 c04ceafc c004a714
    9fa0: c06287b4 c06c18f8 c0619ff4 c0619fb8 c0008b68 c04cea68 c0008578 00000000
    9fc0: 00000000 c003a674 00000000 10c5387d c0628658 c003aa78 c062f1c4 4000406a
    9fe0: 413fc090 00000000 00000000 c0619ff8 40008044 c0008858 00000000 00000000
    Backtrace:
    [] (dw_mci_pull_data32+0x0/0x9c) from [] (dw_mci_read_data_pio+0x54/0x1f0)
    r6:00000200 r5:e1a4f000 r4:e1dd3100
    [] (dw_mci_read_data_pio+0x0/0x1f0) from [] (dw_mci_interrupt+0xfc/0x4a4)
    [] (dw_mci_interrupt+0x0/0x4a4) from [] (handle_irq_event_percpu+0x7c/0x1b4)
    [] (handle_irq_event_percpu+0x0/0x1b4) from [] (handle_irq_event+0x44/0x64)
    [] (handle_irq_event+0x0/0x64) from [] (handle_fasteoi_irq+0xb4/0x124)
    r7:ffffed68 r6:c061e7cc r5:c00423ac r4:c061e780
    [] (handle_fasteoi_irq+0x0/0x124) from [] (generic_handle_irq+0x30/0x38)
    r7:ffffed68 r6:c0618000 r5:ffffee38 r4:0000008d
    [] (generic_handle_irq+0x0/0x38) from [] (asm_do_IRQ+0x64/0xe0)
    r5:ffffee38 r4:c00423ac
    [] (asm_do_IRQ+0x0/0xe0) from [] (__irq_svc+0x80/0x14c)
    Exception stack(0xc0619ed0 to 0xc0619f18)

    Signed-off-by: Seungwon Jeon
    Acked-by: Will Newton
    Signed-off-by: Chris Ball
    Signed-off-by: Greg Kroah-Hartman

    Seungwon Jeon
     
  • commit 18ee684b8ab666329e0a0a72d8b70f16fb0e2243 upstream.

    Sometimes a software reset is needed. Then some registers are saved and
    restored but the interrupt mask register is missing. It causes issues
    with sdio devices whose interrupts are masked after reset.

    Signed-off-by: Ludovic Desroches
    Signed-off-by: Nicolas Ferre
    Signed-off-by: Chris Ball
    Signed-off-by: Greg Kroah-Hartman

    Ludovic Desroches
     
  • commit 02a237b24d57e2e2d5402c92549e9e792aa24359 upstream.

    Since 3.2 kernel, the driver starts trying to assign the multi-io DACs
    before the speaker, thus it assigns DAC2/3 for multi-io and DAC4 for
    the speaker for a standard laptop setup like a HP, a speaker, a mic-in
    and a line-in. However, on Acer Aspire 6935, it seems that the
    speaker pin 0x14 must be connected with either DAC1 or 2; otherwise it
    results in silence by some reason, although the codec itself allows
    the routing to DAC3/4.

    As a workaround, the connection list of each pin is reduced to be
    mapped to either only DAC1/2 or DAC3/4, so that the compatible
    assignment as in kernel 3.1 is achieved.

    Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=42740

    Signed-off-by: Takashi Iwai
    Signed-off-by: Greg Kroah-Hartman

    Takashi Iwai
     
  • commit fc1156c0b0f7ad45ec03d919866349eeca2bf18c upstream.

    VT1705 codec has two ADCs where the secondary ADC has no MUX but only
    a fixed connection to the mic pin. This confused the driver and it
    tries always overriding the input-source selection by assumption of
    the existing MUX for the secondary ADC, resulted in resetting the
    input-source at each time PM (including power-saving) occurs.

    The fix is simply to check the existence of MUX for secondary ADCs in
    the initialization code.

    Tested-by: Anisse Astier
    Signed-off-by: Takashi Iwai
    Signed-off-by: Greg Kroah-Hartman

    Takashi Iwai
     
  • commit 27c3afe6e1cf129faac90405121203962da08ff4 upstream.

    BugLink: https://bugs.launchpad.net/bugs/930842

    The reporter states that audio is inaudible by default without muting
    'External Amplifier'. Add a quirk to handle his SSID so that changing
    the control is not necessary.

    Reported-and-tested-by: Benjamin Carlson
    Signed-off-by: Daniel T Chen
    Signed-off-by: Takashi Iwai
    Signed-off-by: Greg Kroah-Hartman

    Daniel T Chen
     
  • commit 2673b4cf5d59c3ee5e0c12f6d734d38770324dc4 upstream.

    While 7a401a972df8e18 ("backing-dev: ensure wakeup_timer is deleted")
    addressed the problem of the bdi being freed with a queued wakeup
    timer, there are other races that could happen if the wakeup timer
    expires after/during bdi_unregister(), before bdi_destroy() is called.

    wakeup_timer_fn() could attempt to wakeup a task which has already has
    been freed, or could access a NULL bdi->dev via the wake_forker_thread
    tracepoint.

    Cc: Jens Axboe
    Reported-by: Chanho Min
    Reviewed-by: Namjae Jeon
    Signed-off-by: Rabin Vincent
    Signed-off-by: Wu Fengguang
    Signed-off-by: Greg Kroah-Hartman

    Rabin Vincent
     
  • commit 3a92d687c8015860a19213e3c102cad6b722f83c upstream.

    Unfortunately in reducing W from 80 to 16 we ended up unrolling
    the loop twice. As gcc has issues dealing with 64-bit ops on
    i386 this means that we end up using even more stack space (>1K).

    This patch solves the W reduction by moving LOAD_OP/BLEND_OP
    into the loop itself, thus avoiding the need to duplicate it.

    While the stack space still isn't great (>0.5K) it is at least
    in the same ball park as the amount of stack used for our C sha1
    implementation.

    Note that this patch basically reverts to the original code so
    the diff looks bigger than it really is.

    Signed-off-by: Herbert Xu
    Signed-off-by: Greg Kroah-Hartman

    Herbert Xu
     
  • commit 58d7d18b5268febb8b1391c6dffc8e2aaa751fcd upstream.

    The previous patch used the modulus operator over a power of 2
    unnecessarily which may produce suboptimal binary code. This
    patch changes changes them to binary ands instead.

    Signed-off-by: Herbert Xu
    Signed-off-by: Greg Kroah-Hartman

    Herbert Xu
     
  • commit ff4fa4a25a33f92b5653bb43add0c63bea98d464 upstream.

    standard_receive3 will check the validity of the response from the
    server (via checkSMB). It'll pass the result of that check to handle_mid
    which will dequeue it and mark it with a status of
    MID_RESPONSE_MALFORMED if checkSMB returned an error. At that point,
    standard_receive3 will also return an error, which will make the
    demultiplex thread skip doing the callback for the mid.

    This is wrong -- if we were able to identify the request and the
    response is marked malformed, then we want the demultiplex thread to do
    the callback. Fix this by making standard_receive3 return 0 in this
    situation.

    Reported-and-Tested-by: Mark Moseley
    Signed-off-by: Jeff Layton
    Signed-off-by: Steve French
    Signed-off-by: Greg Kroah-Hartman

    Jeff Layton
     
  • commit 8b0192a5f478da1c1ae906bf3ffff53f26204f56 upstream.

    Currently, it's always set to 0 (no oplock requested).

    Signed-off-by: Jeff Layton
    Signed-off-by: Steve French
    Signed-off-by: Greg Kroah-Hartman

    Jeff Layton
     
  • commit 09e87e5c4f9af656af2a8a3afc03487c5d9287c3 upstream.

    In order to enable temperature mode aka automatic mode for the F75373 and
    F75375 chips, the two FANx_MODE bits in the fan configuration register
    need be set to 01, not 10.

    Signed-off-by: Nikolaus Schulz
    Signed-off-by: Greg Kroah-Hartman

    Nikolaus Schulz
     
  • commit 977b7e3a52a7421ad33a393a38ece59f3d41c2fa upstream.

    When a SD card is hot removed without umount, del_gendisk() will call
    bdi_unregister() without destroying/freeing it. This leaves the bdi in
    the bdi->dev = NULL, bdi->wb.task = NULL, bdi->bdi_list removed state.

    When sync(2) gets the bdi before bdi_unregister() and calls
    bdi_queue_work() after the unregister, trace_writeback_queue will be
    dereferencing the NULL bdi->dev. Fix it with a simple test for NULL.

    LKML-reference: http://lkml.org/lkml/2012/1/18/346
    Reported-by: Rabin Vincent
    Tested-by: Namjae Jeon
    Signed-off-by: Wu Fengguang
    Signed-off-by: Greg Kroah-Hartman

    Wu Fengguang
     
  • commit 15eb77a07c714ac80201abd0a9568888bcee6276 upstream.

    bdi_prune_sb() resets sb->s_bdi to default_backing_dev_info when the
    tearing down the original bdi. Fix trace_writeback_single_inode to
    use sb->s_bdi=default_backing_dev_info rather than bdi->dev=NULL for a
    teared down bdi.

    Reported-by: Rabin Vincent
    Tested-by: Rabin Vincent
    Signed-off-by: Wu Fengguang
    Signed-off-by: Greg Kroah-Hartman

    Wu Fengguang
     
  • commit 07ae2dfcf4f7143ce191c6436da1c33f179af0d6 upstream.

    The current code checks for stored_mpdu_num > 1, causing
    the reorder_timer to be triggered indefinitely, but the
    frame is never timed-out (until the next packet is received)

    Signed-off-by: Eliad Peller
    Acked-by: Johannes Berg
    Signed-off-by: John W. Linville
    Signed-off-by: Greg Kroah-Hartman

    Eliad Peller
     
  • commit f6302f1bcd75a042df69866d98b8d775a668f8f1 upstream.

    "subbuf_size" and "n_subbufs" come from the user and they need to be
    capped to prevent an integer overflow.

    Signed-off-by: Dan Carpenter
    Signed-off-by: Jens Axboe
    Signed-off-by: Greg Kroah-Hartman

    Dan Carpenter
     
  • commit 3310225dfc71a35a2cc9340c15c0e08b14b3c754 upstream.

    PROP_MAX_SHIFT should be set to 32.

    2) overflow: (bdi_dirty * numerator) could easily overflow if numerator
    used up to 48 bits, leaving only 16 bits to bdi_dirty

    Cc: Peter Zijlstra
    Reported-by: Ilya Tumaykin
    Tested-by: Ilya Tumaykin
    Signed-off-by: Wu Fengguang
    Signed-off-by: Greg Kroah-Hartman

    Wu Fengguang
     
  • commit a1728800bed3b93b231d99e97c756f622b9991c2 upstream.

    8
    Date: Wed, 16 Nov 2011 09:33:50 +0100
    Subject: net: enable TC35815 for MIPS again

    TX493[8,9] MIPS SoCs support 2 Ethernet channels of type TC35815
    which are connected to the internal PCI controller.
    And JMR3927 MIPS board has a TC35815 chip on board.
    These dependencies were lost on movement to drivers/net/ethernet/toshiba.

    Signed-off-by: Ralf Roesch
    Signed-off-by: Atsushi Nemoto
    Signed-off-by: David S. Miller
    Signed-off-by: Greg Kroah-Hartman

    Atsushi Nemoto
     
  • commit eb2f255b2d360df3f500042a2258dcf2fcbe89a2 upstream.

    In order to extract the high byte of the 16-bit word, shift the word to
    the right, not to the left.

    Signed-off-by: Nikolaus Schulz
    Signed-off-by: Guenter Roeck
    Signed-off-by: Greg Kroah-Hartman

    Nikolaus Schulz
     
  • commit 55a2bb4a6d5e8c7b324d003e130fd9aaf33be4e6 upstream.

    commit adb5066 "ath9k_hw: do not apply the 2.4 ghz ack timeout
    workaround to cts" reduced the hardware CTS timeout to the normal
    values specified by the standard, but it turns out while it doesn't
    need the same extra time that it needs for the ACK timeout, it
    does need more than the value specified in the standard, but only
    for 2.4 GHz.

    This patch brings the CTS timeout value in sync with the initialization
    values, while still allowing adjustment for bigger distances.

    Signed-off-by: Felix Fietkau
    Reported-by: Seth Forshee
    Reported-by: Marek Lindner
    Signed-off-by: John W. Linville
    Signed-off-by: Greg Kroah-Hartman

    Felix Fietkau
     
  • commit f88373fa47f3ce6590fdfaa742d0ddacc2ae017f upstream.

    commit b4a82a0 "ath9k_hw: fix interpretation of the rx KeyMiss flag"
    fixed the interpretation of the KeyMiss flag for keycache based lookups,
    however WEP encryption uses a static index, so KeyMiss is always asserted
    for it, even though frames are decrypted properly.
    Fix this by clearing the ATH9K_RXERR_KEYMISS flag if no keycache based
    lookup was performed.

    Signed-off-by: Felix Fietkau
    Reported-by: Laurent Bonnans
    Reported-by: Jurica Vukadin
    Signed-off-by: John W. Linville
    Signed-off-by: Greg Kroah-Hartman

    Felix Fietkau
     
  • commit 07445f688218a48bde72316aed9de4fdcc173131 upstream.

    all works need to be initialized before ieee80211_register_hw
    to prevent mac80211 call backs such as drv_start, drv_config
    getting started. otherwise we would queue/cancel works before
    initializing them and it leads to kernel panic.
    this issue can be recreated with the following script
    in Chrome laptops with AR928X cards, with background scan
    running (or) Network manager is running

    while true
    do
    sudo modprobe -v ath9k
    sleep 3
    sudo modprobe -r ath9k
    sleep 3
    done

    EIP: [] __cancel_work_timer+0xb8/0xe1 SS:ESP 0068:f6be9d70
    ---[ end trace 4f86d6139a9900ef ]---
    Registered led device: ath9k-phy0
    ieee80211 phy0: Atheros AR9280 Rev:2 mem=0xf88a0000,
    irq=16
    Kernel panic - not syncing: Fatal exception
    Pid: 456, comm: wpa_supplicant Tainted: G D
    3.0.13 #1
    Call Trace:
    [] panic+0x53/0x14a
    [] oops_end+0x73/0x81
    [] die+0x4c/0x55
    [] do_trap+0x7c/0x83
    [] ? do_bounds+0x58/0x58
    [] do_invalid_op+0x77/0x81
    [] ? __cancel_work_timer+0xb8/0xe1
    [] ? sched_clock_cpu+0x81/0x11f
    [] ? wait_on_work+0xe2/0xf7
    [] error_code+0x67/0x6c
    [] ? wait_consider_task+0x4ba/0x84c
    [] ? __cancel_work_timer+0xb8/0xe1
    [] ? try_to_del_timer_sync+0x5f/0x67
    [] cancel_work_sync+0xf/0x11
    [] ath_set_channel+0x62/0x25c [ath9k]
    [] ? ath9k_tx_last_beacon+0x26a/0x85c [ath9k]
    [] ath_radio_disable+0x3f1/0x68e [ath9k]
    [] ieee80211_hw_config+0x111/0x116 [mac80211]
    [] __ieee80211_recalc_idle+0x919/0xa37 [mac80211]
    [] __ieee80211_recalc_idle+0xa33/0xa37 [mac80211]
    [] __dev_open+0x82/0xab

    Cc: Gary Morain
    Cc: Paul Stewart
    Cc: Vasanthakumar Thiagarajan
    Tested-by: Mohammed Shafi Shajakhan
    Signed-off-by: Rajkumar Manoharan
    Signed-off-by: Mohammed Shafi Shajakhan
    Signed-off-by: John W. Linville
    Signed-off-by: Greg Kroah-Hartman

    Mohammed Shafi Shajakhan
     
  • commit e57b6886f555ab57f40a01713304e2053efe51ec upstream.

    According to a bug report, it doesn't have one.

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=44263
    Acked-by: Chris Wilson
    Signed-Off-by: Daniel Vetter
    Signed-off-by: Keith Packard
    Signed-off-by: Greg Kroah-Hartman

    Daniel Vetter
     
  • commit c898261c0dad617f0f1080bedc02d507a2fcfb92 upstream.

    It is never correct to use intel_crtc->bpp in intel_dp_link_required,
    so instead pass an explicit bpp in to this function. This patch
    only supports 18bpp and 24bpp modes, which means that 10bpc modes will
    be computed incorrectly. Fixing that will require more extensive
    changes, and so must be addressed separately from this bugfix.

    intel_dp_link_required is called from intel_dp_mode_valid and
    intel_dp_mode_fixup.

    * intel_dp_mode_valid is called to list supported modes; in this case,
    the current crtc values cannot be relevant as the modes in question
    may never be selected. Thus, using intel_crtc->bpp is never right.

    * intel_dp_mode_fixup is called during mode setting, but it is run
    well before ironlake_crtc_mode_set is called to set intel_crtc->bpp,
    so using intel_crtc-bpp in this path can only ever get a stale
    value.

    Cc: Lubos Kolouch
    Cc: Adam Jackson
    Reviewed-by: Daniel Vetter
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=42263
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=44881
    Tested-by: Dave Airlie
    Tested-by: camalot@picnicpark.org (Dell Latitude 6510)
    Tested-by: Roland Dreier
    Signed-off-by: Keith Packard
    Signed-off-by: Greg Kroah-Hartman

    Keith Packard
     
  • commit 7a0153ee15575a4d07b5da8c96b79e0b0fd41a12 upstream.

    By adding following objects:
    bench/mem-memcpy-x86-64-asm.o
    the x86_64 perf binary ended up with executable stack.

    The reason was that above object are assembler sourced and is missing the
    GNU-stack note section. In such case the linker assumes that the final binary
    should not be restricted at all and mark the stack as RWX.

    Adding section ".note.GNU-stack" definition to mentioned object, with all
    flags disabled, thus omiting this object from linker stack flags decision.

    Problem introduced in:

    $ git describe ea7872b
    v2.6.37-rc2-19-gea7872b

    Reported-at: https://bugzilla.redhat.com/show_bug.cgi?id=783570
    Reported-by: Clark Williams
    Acked-by: Eric Dumazet
    Cc: Corey Ashford
    Cc: Ingo Molnar
    Cc: Paul Mackerras
    Cc: Peter Zijlstra
    Link: http://lkml.kernel.org/r/1328100848-5630-1-git-send-email-jolsa@redhat.com
    Signed-off-by: Jiri Olsa
    [ committer note: Backported fix to perf/urgent (3.3-rc2+) ]
    Signed-off-by: Arnaldo Carvalho de Melo
    Signed-off-by: Greg Kroah-Hartman

    Jiri Olsa
     
  • commit a4a03fc7ef89020baca4f19174e6a43767c6d78a upstream.

    This patch fixes an issue where perf report shows nan% for certain
    perf.data files. The below is from a report for a do_fork probe:

    -nan% sshd [kernel.kallsyms] [k] do_fork
    -nan% packagekitd [kernel.kallsyms] [k] do_fork
    -nan% dbus-daemon [kernel.kallsyms] [k] do_fork
    -nan% bash [kernel.kallsyms] [k] do_fork

    A git bisect shows commit f3bda2c as the cause. However, looking back
    through the git history, I saw commit 640c03c which seems to have
    removed the required initialization for perf_sample->period. The problem
    only started showing after commit f3bda2c. The below patch re-introduces
    the initialization and it fixes the problem for me.

    With the below patch, for the same perf.data:

    73.08% bash [kernel.kallsyms] [k] do_fork
    8.97% 11-dhclient [kernel.kallsyms] [k] do_fork
    6.41% sshd [kernel.kallsyms] [k] do_fork
    3.85% 20-chrony [kernel.kallsyms] [k] do_fork
    2.56% sendmail [kernel.kallsyms] [k] do_fork

    This patch applies over current linux-tip commit 9949284.

    Problem introduced in:

    $ git describe 640c03c
    v2.6.37-rc3-83-g640c03c

    Cc: Ananth N Mavinakayanahalli
    Cc: Ingo Molnar
    Cc: Robert Richter
    Cc: Srikar Dronamraju
    Link: http://lkml.kernel.org/r/20120203170113.5190.25558.stgit@localhost6.localdomain6
    Signed-off-by: Naveen N. Rao
    Signed-off-by: Arnaldo Carvalho de Melo
    Signed-off-by: Greg Kroah-Hartman

    Naveen N. Rao
     
  • commit 0629292117572a60465f38cdedde2f8164c3df0b upstream.

    Recent addition of code to find already allocated VFs failed to take
    account that systems with 2 or more multi-port SR-IOV capable controllers
    might have already enabled VFs. Make sure that the VFs the function is
    finding are actually subordinate to the particular instance of the adapter
    that is looking for them and not subordinate to some device that has
    previously enabled SR-IOV.

    This is applicable to 3.2+ kernels.

    Reported-by: David Ahern
    Signed-off-by: Greg Rose
    Tested-by: Robert E Garrett
    Signed-off-by: Jeff Kirsher
    Signed-off-by: Greg Kroah-Hartman

    Greg Rose
     
  • commit a4b08329c74985e5cc3a44b6d2b2c59444ed8079 upstream.

    Recent addition of code to find already allocated VFs failed to take
    account that systems with 2 or more multi-port SR-IOV capable controllers
    might have already enabled VFs. Make sure that the VFs the function is
    finding are actually subordinate to the particular instance of the adapter
    that is looking for them and not subordinate to some device that has
    previously enabled SR-IOV.

    This bug exists in 3.2 stable as well as 3.3 release candidates.

    Reported-by: David Ahern
    Signed-off-by: Greg Rose
    Tested-by: Robert E Garrett
    Signed-off-by: Jeff Kirsher
    Signed-off-by: Greg Kroah-Hartman

    Greg Rose
     

14 Feb, 2012

10 commits

  • Greg Kroah-Hartman
     
  • commit a8eb28480e9b637cc78b9aa5e08612ba97e1317a upstream.

    The driver uses the pstate number from the status register as index in
    its table of ACPI pstates (powernow_table). This is wrong as this is
    not a 1-to-1 mapping.

    For example we can have _PSS information to just utilize Pstate 0 and
    Pstate 4, ie.

    powernow-k8: Core Performance Boosting: on.
    powernow-k8: 0 : pstate 0 (2200 MHz)
    powernow-k8: 1 : pstate 4 (1400 MHz)

    In this example the driver's powernow_table has just 2 entries. Using
    the pstate number (4) as index into this table is just plain wrong.

    Signed-off-by: Andreas Herrmann
    Signed-off-by: Dave Jones
    Signed-off-by: Greg Kroah-Hartman

    Andreas Herrmann
     
  • commit 201bf0f129e1715a33568d1563d9a75b840ab4d3 upstream.

    Due to CPB we can't directly map SW Pstates to Pstate MSRs. Get rid of
    the paranoia check. (assuming that the ACPI Pstate information is
    correct.)

    Signed-off-by: Andreas Herrmann
    Signed-off-by: Dave Jones
    Signed-off-by: Greg Kroah-Hartman

    Andreas Herrmann
     
  • commit b5266ea675c5a041e2852c7ccec4cf2d4f5e0cf4 upstream.

    Signed-off-by: Axel Lin
    Acked-by: Michał Mirosław
    Signed-off-by: Greg Kroah-Hartman

    Axel Lin
     
  • commit 9256a4789be3dae37d00924c03546ba7958ea5a3 upstream.

    I discovered this deadlock condition awhile ago working on RAMster
    but it affects zcache as well. The list spinlock must be
    locked prior to the page spinlock and released after. As
    a result, the page copy must also be done while the locks are held.

    Applies to 3.2. Konrad, please push (via GregKH?)...
    this is definitely a bug fix so need not be pushed during
    a -rc0 window.

    Signed-off-by: Dan Magenheimer
    Acked-by: Konrad Rzeszutek Wilk
    Signed-off-by: Greg Kroah-Hartman

    Dan Magenheimer
     
  • commit e8b4553457e78bcff90f70a31212a40a8fd4f0db upstream.

    SWIZ_BITS > 8 results in a much larger number of "tmem_obj"
    allocations, likely one per page-placed-in-frontswap. The
    tmem_obj is not huge (roughly 100 bytes), but it is large
    enough to add a not-insignificant memory overhead to zcache.

    The SWIZ_BITS=8 will get roughly the same lock contention
    without the space wastage.

    The effect of SWIZ_BITS can be thought of as "2^SWIZ_BITS is
    the number of unique oids that be generated" (This concept is
    limited to frontswap's use of tmem).

    Acked-by: Seth Jennings
    Signed-off-by: Konrad Rzeszutek Wilk
    Signed-off-by: Greg Kroah-Hartman

    Dan Magenheimer
     
  • commit 1608ea5f4b5d6262cd6e808839491cfb2a67405a upstream.

    As ZTE have and will use more pid for new products this year,
    so we need to add some new zte 3g-dongle's pid on option.c ,
    and delete one pid 0x0154 because it use for mass-storage port.

    Signed-off-by: Rui li
    Signed-off-by: Greg Kroah-Hartman

    Rui li
     
  • commit 90451e6973a5da155c6f315a409ca0a8d3ce6b76 upstream.

    Signed-off-by: Milan Kocian
    Signed-off-by: Greg Kroah-Hartman

    Milan Kocian
     
  • commit e4436a7c17ac2b5e138f93f83a541cba9b311685 upstream.

    The Netlogic XLP SoC's on-chip USB controller appears as a PCI
    USB device, but does not need the EHCI/OHCI handoff done in
    usb/host/pci-quirks.c.

    The pci-quirks.c is enabled for all vendors and devices, and is
    enabled if USB and PCI are configured.

    If we do not skip the qurik handling on XLP, the readb() call in
    ehci_bios_handoff() will cause a crash since byte access is not
    supported for EHCI registers in XLP.

    Signed-off-by: Jayachandran C
    Acked-by: Alan Stern
    Signed-off-by: Greg Kroah-Hartman

    Jayachandran C
     
  • commit 683da59d7b8ae04891636d4b59893cd4e9b0b7e5 upstream.

    ab943a2e125b (USB: gadget: gadget zero uses new suspend/resume hooks)
    introduced a copy-paste error where f_loopback.c writes to a variable
    declared in f_sourcesink.c. This prevents one from creating gadgets
    that only have a loopback function.

    Signed-off-by: Timo Juhani Lindfors
    Signed-off-by: Felipe Balbi
    Signed-off-by: Greg Kroah-Hartman

    Timo Juhani Lindfors