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authorJakub Kicinski <kuba@kernel.org>2020-09-05 06:18:58 +0200
committerJakub Kicinski <kuba@kernel.org>2020-09-05 06:28:59 +0200
commit44a8c4f33c0073ca614db79f22e023811bdd0f3c (patch)
tree2d29271961a485f621bd14294ec57e816290541e /kernel/irq/matrix.c
parentsmsc9420: switch from 'pci_' to 'dma_' API (diff)
parentMerge tag 's390-5.9-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/... (diff)
downloadlinux-44a8c4f33c0073ca614db79f22e023811bdd0f3c.tar.xz
linux-44a8c4f33c0073ca614db79f22e023811bdd0f3c.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
We got slightly different patches removing a double word in a comment in net/ipv4/raw.c - picked the version from net. Simple conflict in drivers/net/ethernet/ibm/ibmvnic.c. Use cached values instead of VNIC login response buffer (following what commit 507ebe6444a4 ("ibmvnic: Fix use-after-free of VNIC login response buffer") did). Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'kernel/irq/matrix.c')
-rw-r--r--kernel/irq/matrix.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/irq/matrix.c b/kernel/irq/matrix.c
index 30cc217b8631..651a4ad6d711 100644
--- a/kernel/irq/matrix.c
+++ b/kernel/irq/matrix.c
@@ -380,6 +380,13 @@ int irq_matrix_alloc(struct irq_matrix *m, const struct cpumask *msk,
unsigned int cpu, bit;
struct cpumap *cm;
+ /*
+ * Not required in theory, but matrix_find_best_cpu() uses
+ * for_each_cpu() which ignores the cpumask on UP .
+ */
+ if (cpumask_empty(msk))
+ return -EINVAL;
+
cpu = matrix_find_best_cpu(m, msk);
if (cpu == UINT_MAX)
return -ENOSPC;