The patch titled
netpoll: fix local_bh_enable() warning
has been removed from the -mm tree. Its filename was
netpoll-fix-local_bh_enable-warning.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: netpoll: fix local_bh_enable() warning
From: Andrew Morton <akpm@xxxxxxxx>
During boot we get:
netconsole: device eth0 not up yet, forcing it
e1000: eth0: e1000_watchdog: NIC Link is Up 100 Mbps Full Duplex
WARNING (!__warned) at kernel/softirq.c:137 local_bh_enable()
Call Trace:
[<ffffffff80235baf>] local_bh_enable+0x41/0xa3
[<ffffffff8045ab8e>] netpoll_send_skb+0x116/0x144
[<ffffffff8045b1ee>] netpoll_send_udp+0x263/0x271
[<ffffffff803d41ec>] write_msg+0x42/0x5e
[<ffffffff80230c9b>] __call_console_drivers+0x5f/0x70
[<ffffffff80230d19>] _call_console_drivers+0x6d/0x71
[<ffffffff802313f0>] release_console_sem+0x148/0x1ec
[<ffffffff802316ce>] register_console+0x1b1/0x1ba
[<ffffffff803d4178>] init_netconsole+0x54/0x68
[<ffffffff802071ae>] init+0x152/0x308
[<ffffffff804dac8b>] _spin_unlock_irq+0x14/0x30
[<ffffffff8022c15e>] schedule_tail+0x43/0x9f
[<ffffffff8020a758>] child_rip+0xa/0x12
Herbert sayeth:
Normally networking isn't invoked with interrupts turned off, but I
suppose we don't have a choice here. This is unique being a place where you
can get called with BH on, off, or IRQs off.
Given that this is only used for printk, the easiest solution is probably
just to disable local IRQs instead of BH.
Cc: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
net/core/netpoll.c | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff -puN net/core/netpoll.c~netpoll-fix-local_bh_enable-warning net/core/netpoll.c
--- a/net/core/netpoll.c~netpoll-fix-local_bh_enable-warning
+++ a/net/core/netpoll.c
@@ -243,7 +243,9 @@ static void netpoll_send_skb(struct netp
/* don't get messages out of order, and no recursion */
if (skb_queue_len(&npinfo->txq) == 0 &&
npinfo->poll_owner != smp_processor_id()) {
- local_bh_disable(); /* Where's netif_tx_trylock_bh()? */
+ unsigned long flags;
+
+ local_irq_save(flags);
if (netif_tx_trylock(dev)) {
/* try until next clock tick */
for (tries = jiffies_to_usecs(1)/USEC_PER_POLL;
@@ -261,7 +263,7 @@ static void netpoll_send_skb(struct netp
}
netif_tx_unlock(dev);
}
- local_bh_enable();
+ local_irq_restore(flags);
}
if (status != NETDEV_TX_OK) {
_
Patches currently in -mm which might be from akpm@xxxxxxxx are
origin.patch
x86-smp-export-smp_num_siblings-for-oprofile.patch
cciss-remove-calls-to-pci_disable_device-fix.patch
revert-generic_file_buffered_write-handle-zero-length-iovec-segments.patch
revert-generic_file_buffered_write-deadlock-on-vectored-write.patch
generic_file_buffered_write-cleanup.patch
mm-fix-pagecache-write-deadlocks.patch
fs-prepare_write-fixes-fuse-fix.patch
fs-prepare_write-fixes-fat-fix.patch
macintosh-mangle-caps-lock-events-on-adb-keyboards.patch
git-acpi.patch
acpi-dont-select-pm.patch
implementation-of-acpi_video_get_next_level.patch
video-sysfs-support-take-2-add-dev-argument-for-backlight_device_register.patch
sony_apci-resume.patch
sony_apci-resume-fix.patch
video-sysfs-support-take-2-add-dev-argument-for-backlight_device_register-sony_acpi-fix.patch
git-alsa.patch
git-alsa-fixup.patch
alsa-workqueue-fixes.patch
git-drm.patch
ia64-enable-config_debug_spinlock_sleep.patch
git-input-vs-git-alsa.patch
git-libata-all.patch
pata_cs5530-suspend-resume-support-tweak.patch
pata_sil680-suspend-resume-tidy.patch
pata_via-suspend-resume-support-fix.patch
git-lxdialog-fixup.patch
git-mmc-fixup.patch
git-mmc-tifm_sd-warning-fix.patch
git-mtd.patch
git-ubi.patch
ubi-versus-add-include-linux-freezerh-and-move-definitions-from.patch
update-smc91x-driver-with-arm-versatile-board-info.patch
driver-for-silan-sc92031-netdev-include-fix.patch
drivers-net-ns83820c-add-paramter-to-disable-auto.patch
net-use-bitrev8.patch
net-uninline-skb_put.patch
ioat-warning-fix.patch
pci-legacy-resource-fix-tidy.patch
drivers-scsi-mca_53c9xc-save_flags-cli-removal.patch
scsi-in2000-scsi_cmnd-convertion.patch
aic79xx-wrong-max-memory-at-driver-init.patch
scsi-cover-up-bugs-fix-up-compiler-warnings-in-megaraid-driver-fix.patch
git-qla3xxx-fixup.patch
nokia-e70-is-an-unusual-device.patch
fix-gregkh-usb-usb-ehci-hcd-add-shadow-budget-code.patch
git-wireless.patch
revert-i386-fix-the-verify_quirk_intel_irqbalance.patch
revert-x86_64-mm-add-genapic_force.patch
revert-x86_64-mm-fix-the-irqbalance-quirk-for-e7320-e7520-e7525.patch
convert-i386-pda-code-to-use-%fs-fixes.patch
touchkit-ps-2-touchscreen-driver.patch
virtual-memmap-on-sparsemem-v3-map-and-unmap-fix-2.patch
virtual-memmap-on-sparsemem-v3-map-and-unmap-fix-3.patch
lumpy-reclaim-v2-tidy.patch
slab-use-a-multiply-instead-of-a-divide-in-obj_to_index-tweaks.patch
deprecate-smbfs-in-favour-of-cifs.patch
edac-new-opteron-athlon64-memory-controller-driver.patch
drivers-add-lcd-support-3-Kconfig-fix.patch
drivers-add-lcd-support-workqueue-fixups.patch
touch_atime-cleanup.patch
ocfs2-relative-atime-support-tweaks.patch
ecryptfs-public-key-packet-management-slab-fix.patch
optimize-o_direct-on-block-device-v3-tweak.patch
add-retain_initrd-boot-option-tweak.patch
lockdep-fix-possible-races-while-disabling-lock-debugging-fix.patch
workqueue-dont-hold-workqueue_mutex-in-flush_scheduled_work.patch
move-page-writeback-acounting-out-of-macros.patch
per-backing_dev-dirty-and-writeback-page-accounting.patch
ext2-reservations.patch
sched2-sched-domain-sysctl-use-ctl_unnumbered.patch
mm-implement-swap-prefetching-use-ctl_unnumbered.patch
swap_prefetch-vs-zoned-counters.patch
add-include-linux-freezerh-and-move-definitions-from-prefetch.patch
readahead-kconfig-options-fix.patch
readahead-minmax_ra_pages.patch
readahead-sysctl-parameters.patch
readahead-sysctl-parameters-use-ctl_unnumbered.patch
readahead-context-based-method-locking-fix.patch
readahead-context-based-method-locking-fix-2.patch
readahead-call-scheme-ifdef-fix.patch
readahead-call-scheme-build-fix.patch
readahead-nfsd-case-fix.patch
make-copy_from_user_inatomic-not-zero-the-tail-on-i386-vs-reiser4.patch
resier4-add-include-linux-freezerh-and-move-definitions-from.patch
make-kmem_cache_destroy-return-void-reiser4.patch
reiser4-hardirq-include-fix.patch
reiser4-run-truncate_inode_pages-in-reiser4_delete_inode.patch
reiser4-get_sb_dev-fix.patch
reiser4-vs-zoned-allocator.patch
reiser4-temp-fix.patch
reiser4-kmem_cache_t-removal.patch
hpt3xx-rework-rate-filtering-tidy.patch
jmicron-warning-fix.patch
statistics-infrastructure-fix-buffer-overflow-in-histogram-with-linear-tidy.patch
extend-notifier_call_chain-to-count-nr_calls-made.patch
extend-notifier_call_chain-to-count-nr_calls-made-fixes-2.patch
define-and-use-new-eventscpu_lock_acquire-and-cpu_lock_release-fix.patch
eliminate-lock_cpu_hotplug-in-kernel-schedc-fix.patch
gtod-persistent-clock-support-i386.patch
hrtimers-clean-up-locking-fix.patch
updated-hrtimers-state-tracking.patch
updated-i386-convert-to-clock-event-devices.patch
updated-i386-convert-to-clock-event-devices-fix.patch
updated-gtod-mark-tsc-unusable-for-highres-timers.patch
slim-main-include-fix.patch
nr_blockdev_pages-in_interrupt-warning.patch
device-suspend-debug.patch
mutex-subsystem-synchro-test-module-fix.patch
slab-leaks3-default-y.patch
vdso-print-fatal-signals-use-ctl_unnumbered.patch
restore-rogue-readahead-printk.patch
put_bh-debug.patch
e1000-printk-warning-fixes.patch
acpi_format_exception-debug.patch
add-debugging-aid-for-memory-initialisation-problems-fix.patch
kmap_atomic-debugging.patch
squash-ipc-warnings.patch
squash-udf-warnings.patch
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