diff options
Diffstat (limited to 'target/linux/mvebu/patches-4.4/037-net-mvneta-Fix-for_each_present_cpu-usage.patch')
-rw-r--r-- | target/linux/mvebu/patches-4.4/037-net-mvneta-Fix-for_each_present_cpu-usage.patch | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/target/linux/mvebu/patches-4.4/037-net-mvneta-Fix-for_each_present_cpu-usage.patch b/target/linux/mvebu/patches-4.4/037-net-mvneta-Fix-for_each_present_cpu-usage.patch deleted file mode 100644 index 9ded5b7..0000000 --- a/target/linux/mvebu/patches-4.4/037-net-mvneta-Fix-for_each_present_cpu-usage.patch +++ /dev/null @@ -1,55 +0,0 @@ -From: Gregory CLEMENT <gregory.clement@free-electrons.com> -Date: Thu, 4 Feb 2016 22:09:23 +0100 -Subject: [PATCH] net: mvneta: Fix for_each_present_cpu usage - -This patch convert the for_each_present in on_each_cpu, instead of -applying on the present cpus it will be applied only on the online cpus. -This fix a bug reported on -http://thread.gmane.org/gmane.linux.ports.arm.kernel/468173. - -Using the macro on_each_cpu (instead of a for_each_* loop) also ensures -that all the calls will be done all at once. - -Fixes: f86428854480 ("net: mvneta: Statically assign queues to CPUs") -Reported-by: Stefan Roese <stefan.roese@gmail.com> -Suggested-by: Jisheng Zhang <jszhang@marvell.com> -Suggested-by: Russell King <rmk+kernel@arm.linux.org.uk> -Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> -Signed-off-by: David S. Miller <davem@davemloft.net> ---- - ---- a/drivers/net/ethernet/marvell/mvneta.c -+++ b/drivers/net/ethernet/marvell/mvneta.c -@@ -2562,7 +2562,7 @@ static void mvneta_start_dev(struct mvne - mvneta_port_enable(pp); - - /* Enable polling on the port */ -- for_each_present_cpu(cpu) { -+ for_each_online_cpu(cpu) { - struct mvneta_pcpu_port *port = per_cpu_ptr(pp->ports, cpu); - - napi_enable(&port->napi); -@@ -2587,7 +2587,7 @@ static void mvneta_stop_dev(struct mvnet - - phy_stop(pp->phy_dev); - -- for_each_present_cpu(cpu) { -+ for_each_online_cpu(cpu) { - struct mvneta_pcpu_port *port = per_cpu_ptr(pp->ports, cpu); - - napi_disable(&port->napi); -@@ -3055,13 +3055,11 @@ err_cleanup_rxqs: - static int mvneta_stop(struct net_device *dev) - { - struct mvneta_port *pp = netdev_priv(dev); -- int cpu; - - mvneta_stop_dev(pp); - mvneta_mdio_remove(pp); - unregister_cpu_notifier(&pp->cpu_notifier); -- for_each_present_cpu(cpu) -- smp_call_function_single(cpu, mvneta_percpu_disable, pp, true); -+ on_each_cpu(mvneta_percpu_disable, pp, true); - free_percpu_irq(dev->irq, pp->ports); - mvneta_cleanup_rxqs(pp); - mvneta_cleanup_txqs(pp); |