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Date: Sat, 23 Feb 2013 13:54:29 -0500 (EST) From: David Miller <davem@...emloft.net> To: klebers@...ux.vnet.ibm.com Cc: amirv@...lanox.com, netdev@...r.kernel.org Subject: Re: [PATCH] mlx4_en: fix allocation of CPU affinity reverse-map From: Kleber Sacilotto de Souza <klebers@...ux.vnet.ibm.com> Date: Sat, 23 Feb 2013 02:14:52 -0300 > The mlx4_en driver allocates the number of objects for the CPU affinity > reverse-map based on the number of rx rings of the device. However, > mlx4_assign_eq() calls irq_cpu_rmap_add() as many times as IRQ's are > assigned to EQ's, which can be as large as mlx4_dev->caps.comp_pool. If > caps.comp_pool is larger than rx_ring_num we will eventually hit the > BUG_ON() in cpu_rmap_add(). > > Fix this problem by allocating space for the maximum number of CPU > affinity reverse-map objects we might want to add. > > Signed-off-by: Kleber Sacilotto de Souza <klebers@...ux.vnet.ibm.com> Applied. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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