AHCI: Make distinct names for ports in /proc/interrupts

Currently all interrupts assigned to AHCI ports show up in
'/proc/interrupts' as 'ahci'. This fix adds port numbers as
suffixes and hence makes the descriptions distinct.

Reported-by: Jan Beulich <JBeulich@suse.com>
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 251e57d38942..4d1c672d1702 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -1142,9 +1142,11 @@ int ahci_host_activate(struct ata_host *host, int irq, unsigned int n_msis)
                 return rc;
 
         for (i = 0; i < host->n_ports; i++) {
+                struct ahci_port_priv *pp = host->ports[i]->private_data;
+
                 rc = devm_request_threaded_irq(host->dev,
                         irq + i, ahci_hw_interrupt, ahci_thread_fn, IRQF_SHARED,
-                        dev_driver_string(host->dev), host->ports[i]);
+                        pp->irq_desc, host->ports[i]);
                 if (rc)
                         goto out_free_irqs;
         }