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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: 6082d9c9c9 ("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>
This commit is contained in:
Saeed Mahameed 2018-05-14 15:38:10 -07:00 committed by David S. Miller
parent ab452c3ce7
commit e3ca348806
1 changed files with 1 additions and 11 deletions
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12
include/linux/mlx5/driver.h
View File

@ -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 */