No driver has any business with the internals of an interrupt
descriptor. Storing a pointer to it just to use yet another helper at the
actual usage site to retrieve the affinity mask is creative at best. Just
because C does not allow encapsulation does not mean that the kernel has no
limits.
Retrieve a pointer to the affinity mask itself and use that. It's still
using an interface which is usually not for random drivers, but definitely
less hideous than the previous hack.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Tariq Toukan <tariqt@nvidia.com>
Link: https://lore.kernel.org/r/20201210194044.580936243@linutronix.de
int cq_idx)
{
struct mlx4_en_dev *mdev = priv->mdev;
- int err = 0;
+ int irq, err = 0;
int timestamp_en = 0;
bool assigned_eq = false;
assigned_eq = true;
}
-
- cq->irq_desc =
- irq_to_desc(mlx4_eq_get_irq(mdev->dev,
- cq->vector));
+ irq = mlx4_eq_get_irq(mdev->dev, cq->vector);
+ cq->aff_mask = irq_get_affinity_mask(irq);
} else {
/* For TX we use the same irq per
ring we assigned for the RX */
/* If we used up all the quota - we're probably not done yet... */
if (done == budget || !clean_complete) {
- const struct cpumask *aff;
- struct irq_data *idata;
int cpu_curr;
/* in case we got here because of !clean_complete */
INC_PERF_COUNTER(priv->pstats.napi_quota);
cpu_curr = smp_processor_id();
- idata = irq_desc_get_irq_data(cq->irq_desc);
- aff = irq_data_get_affinity_mask(idata);
- if (likely(cpumask_test_cpu(cpu_curr, aff)))
+ if (likely(cpumask_test_cpu(cpu_curr, cq->aff_mask)))
return budget;
/* Current cpu is not according to smp_irq_affinity -
#endif
#include <linux/cpu_rmap.h>
#include <linux/ptp_clock_kernel.h>
+#include <linux/irq.h>
#include <net/xdp.h>
#include <linux/mlx4/device.h>
struct mlx4_cqe *buf;
#define MLX4_EN_OPCODE_ERROR 0x1e
- struct irq_desc *irq_desc;
+ const struct cpumask *aff_mask;
};
struct mlx4_en_port_profile {