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authorAlexander Gordeev <agordeev@redhat.com>2013-05-22 08:53:48 +0900
committerTejun Heo <tj@kernel.org>2013-05-22 08:53:48 +0900
commitb29900e62598cecd519c9ab2b8e4d03f8ebf702d (patch)
treebb7082a5ea560b02730b3f7b257d3a7a82e163d7 /drivers/ata/libahci.c
parent966fbe193f47c68e70a80ec9991098e88e7959cb (diff)
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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>
Diffstat (limited to 'drivers/ata/libahci.c')
-rw-r--r--drivers/ata/libahci.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 34c8216..3797a7b 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -2234,6 +2234,16 @@ static int ahci_port_start(struct ata_port *ap)
if (!pp)
return -ENOMEM;
+ if (ap->host->n_ports > 1) {
+ pp->irq_desc = devm_kzalloc(dev, 8, GFP_KERNEL);
+ if (!pp->irq_desc) {
+ devm_kfree(dev, pp);
+ return -ENOMEM;
+ }
+ snprintf(pp->irq_desc, 8,
+ "%s%d", dev_driver_string(dev), ap->port_no);
+ }
+
/* check FBS capability */
if ((hpriv->cap & HOST_CAP_FBS) && sata_pmp_supported(ap)) {
void __iomem *port_mmio = ahci_port_base(ap);