Commit e3ca3488 authored May 14, 2018 by Saeed Mahameed Committed by David S. Miller May 16, 2018

net/mlx5: Fix build break when CONFIG_SMP=n



Avoid using the kernel's irq_descriptor and return IRQ vector affinity
directly from the driver.

This fixes the following build break when CONFIG_SMP=n

include/linux/mlx5/driver.h: In function ‘mlx5_get_vector_affinity_hint’:
include/linux/mlx5/driver.h:1299:13: error:
        ‘struct irq_desc’ has no member named ‘affinity_hint’

Fixes: 6082d9c9 ("net/mlx5: Fix mlx5_get_vector_affinity function")
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
CC: Randy Dunlap <rdunlap@infradead.org>
CC: Guenter Roeck <linux@roeck-us.net>
CC: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Israel Rukshin <israelr@mellanox.com>
Reported-by: kbuild test robot <lkp@intel.com>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent ab452c3c

include/linux/mlx5/driver.h

+1 −11

Original line number	Diff line number	Diff line
		@@ -1286,17 +1286,7 @@ enum {
		static inline const struct cpumask *
		mlx5_get_vector_affinity_hint(struct mlx5_core_dev *dev, int vector)
		{
		struct irq_desc *desc;
		unsigned int irq;
		int eqn;
		int err;

		err = mlx5_vector2eqn(dev, vector, &eqn, &irq);
		if (err)
		return NULL;

		desc = irq_to_desc(irq);
		return desc->affinity_hint;
		return dev->priv.irq_info[vector].mask;
		}

		#endif /* MLX5_DRIVER_H */

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