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PCI/MSI: Use __get_cached_msi_msg() instead of get_cached_msi_msg() 

Both callers of get_cached_msi_msg() start with a struct irq_data pointer,
look up the corresponding IRQ number, and pass it to get_cached_msi_msg(),
which then uses irq_get_irq_data() to look up the struct irq_data again to
call __get_cached_msi_msg().

Since we already have the struct irq_data, call __get_cached_msi_msg()
directly and skip the lookup work done by get_cached_msi_msg().

No functional change.

[bhelgaas: changelog]
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Tony Luck <tony.luck@intel.com>
CC: linux-ia64@vger.kernel.org
This commit is contained in:
Yijing Wang 2014-09-23 13:27:25 +08:00 committed by Bjorn Helgaas
parent 468ff15a3a
commit 2b260085e4
2 changed files with 3 additions and 3 deletions
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2
arch/ia64/kernel/msi_ia64.c
View File

@ -23,7 +23,7 @@ static int ia64_set_msi_irq_affinity(struct irq_data *idata,
if (irq_prepare_move(irq, cpu))
return -1;
get_cached_msi_msg(irq, &msg);
__get_cached_msi_msg(idata->msi_desc, &msg);
addr = msg.address_lo;
addr &= MSI_ADDR_DEST_ID_MASK;

4
arch/ia64/sn/kernel/msi_sn.c
View File

@ -175,8 +175,8 @@ static int sn_set_msi_irq_affinity(struct irq_data *data,
* Release XIO resources for the old MSI PCI address
*/
get_cached_msi_msg(irq, &msg);
sn_pdev = (struct pcidev_info *)sn_irq_info->irq_pciioinfo;
__get_cached_msi_msg(data->msi_desc, &msg);
sn_pdev = (struct pcidev_info *)sn_irq_info->irq_pciioinfo;
pdev = sn_pdev->pdi_linux_pcidev;
provider = SN_PCIDEV_BUSPROVIDER(pdev);