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authorGreg Kroah-Hartman <gregkh@google.com>2018-03-11 17:40:30 +0100
committerGreg Kroah-Hartman <gregkh@google.com>2018-03-11 17:40:30 +0100
commit2b1843d7d06151a55dc7bb5c787ce2f94ad724c1 (patch)
tree9b8311ec5ed18368b1d60f83771d0df04824ae47 /net/core/dev.c
parentf0f1365fa1a3382759aa9b661d6a757ebfa6f074 (diff)
parent8b5ab55d254f36e89b1b53aeac7223d2d102483e (diff)
Merge 4.4.121 into android-4.4
Changes in 4.4.121 tpm: st33zp24: fix potential buffer overruns caused by bit glitches on the bus tpm_i2c_infineon: fix potential buffer overruns caused by bit glitches on the bus tpm_i2c_nuvoton: fix potential buffer overruns caused by bit glitches on the bus ALSA: usb-audio: Add a quirck for B&W PX headphones ALSA: hda: Add a power_save blacklist cpufreq: s3c24xx: Fix broken s3c_cpufreq_init() media: m88ds3103: don't call a non-initalized function nospec: Allow index argument to have const-qualified type ARM: mvebu: Fix broken PL310_ERRATA_753970 selects KVM: mmu: Fix overlap between public and private memslots x86/syscall: Sanitize syscall table de-references under speculation fix btrfs: Don't clear SGID when inheriting ACLs ARM: dts: LogicPD Torpedo: Fix I2C1 pinmux x86/apic/vector: Handle legacy irq data correctly leds: do not overflow sysfs buffer in led_trigger_show x86/spectre: Fix an error message Revert "led: core: Fix brightness setting when setting delay_off=0" bridge: check brport attr show in brport_show fib_semantics: Don't match route with mismatching tclassid hdlc_ppp: carrier detect ok, don't turn off negotiation ipv6 sit: work around bogus gcc-8 -Wrestrict warning net: fix race on decreasing number of TX queues net: ipv4: don't allow setting net.ipv4.route.min_pmtu below 68 netlink: ensure to loop over all netns in genlmsg_multicast_allns() ppp: prevent unregistered channels from connecting to PPP units udplite: fix partial checksum initialization sctp: fix dst refcnt leak in sctp_v4_get_dst sctp: fix dst refcnt leak in sctp_v6_get_dst() s390/qeth: fix SETIP command handling s390/qeth: fix IPA command submission race sctp: verify size of a new chunk in _sctp_make_chunk() net: mpls: Pull common label check into helper mpls, nospec: Sanitize array index in mpls_label_ok() dm io: fix duplicate bio completion due to missing ref count bpf, x64: implement retpoline for tail call btrfs: preserve i_mode if __btrfs_set_acl() fails Linux 4.4.121 Change-Id: Ifc1f73c407f35cc1815e6f69bbed838c8ca60bc2 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Diffstat (limited to 'net/core/dev.c')
-rw-r--r--net/core/dev.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index 389807c1c36f..b2f589012c6b 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2183,8 +2183,11 @@ EXPORT_SYMBOL(netif_set_xps_queue);
*/
int netif_set_real_num_tx_queues(struct net_device *dev, unsigned int txq)
{
+ bool disabling;
int rc;
+ disabling = txq < dev->real_num_tx_queues;
+
if (txq < 1 || txq > dev->num_tx_queues)
return -EINVAL;
@@ -2200,15 +2203,19 @@ int netif_set_real_num_tx_queues(struct net_device *dev, unsigned int txq)
if (dev->num_tc)
netif_setup_tc(dev, txq);
- if (txq < dev->real_num_tx_queues) {
+ dev->real_num_tx_queues = txq;
+
+ if (disabling) {
+ synchronize_net();
qdisc_reset_all_tx_gt(dev, txq);
#ifdef CONFIG_XPS
netif_reset_xps_queues_gt(dev, txq);
#endif
}
+ } else {
+ dev->real_num_tx_queues = txq;
}
- dev->real_num_tx_queues = txq;
return 0;
}
EXPORT_SYMBOL(netif_set_real_num_tx_queues);