treewide: Use helper function to access irq_data->msi_desc

Use irq_data access helper to access irq_data->msi_desc, so we can
move msi_desc from struct irq_data into struct irq_common_data later.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

6 files changed, 6 insertions, 6 deletions

diff --git a/arch/ia64/kernel/msi_ia64.c b/arch/ia64/kernel/msi_ia64.c
index d70bf15c690a..4d3053e25394 100644
--- a/arch/ia64/kernel/msi_ia64.c
+++ b/arch/ia64/kernel/msi_ia64.c
@@ -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(idata->msi_desc, &msg);
+        __get_cached_msi_msg(irq_data_get_msi_desc(idata), &msg);
 
         addr = msg.address_lo;
         addr &= MSI_ADDR_DEST_ID_MASK;
diff --git a/arch/ia64/sn/kernel/msi_sn.c b/arch/ia64/sn/kernel/msi_sn.c
index a0eb27b66d13..59ba6322b9f6 100644
--- a/arch/ia64/sn/kernel/msi_sn.c
+++ b/arch/ia64/sn/kernel/msi_sn.c
@@ -175,7 +175,7 @@ static int sn_set_msi_irq_affinity(struct irq_data *data,
          * Release XIO resources for the old MSI PCI address
          */
 
-        __get_cached_msi_msg(data->msi_desc, &msg);
+        __get_cached_msi_msg(irq_data_get_msi_desc(data), &msg);
         sn_pdev = (struct pcidev_info *)sn_irq_info->irq_pciioinfo;
         pdev = sn_pdev->pdi_linux_pcidev;
         provider = SN_PCIDEV_BUSPROVIDER(pdev);
diff --git a/arch/powerpc/sysdev/xics/ics-opal.c b/arch/powerpc/sysdev/xics/ics-opal.c
index 68c7e5cc98e0..11ac964d5175 100644
--- a/arch/powerpc/sysdev/xics/ics-opal.c
+++ b/arch/powerpc/sysdev/xics/ics-opal.c
@@ -72,7 +72,7 @@ static unsigned int ics_opal_startup(struct irq_data *d)
          * card, using the MSI mask bits. Firmware doesn't appear to unmask
          * at that level, so we do it here by hand.
          */
-        if (d->msi_desc)
+        if (irq_data_get_msi_desc(d))
                 pci_msi_unmask_irq(d);
 #endif
 
diff --git a/arch/powerpc/sysdev/xics/ics-rtas.c b/arch/powerpc/sysdev/xics/ics-rtas.c
index 0af97deb83f3..d1c625c4cc5a 100644
--- a/arch/powerpc/sysdev/xics/ics-rtas.c
+++ b/arch/powerpc/sysdev/xics/ics-rtas.c
@@ -75,7 +75,7 @@ static unsigned int ics_rtas_startup(struct irq_data *d)
          * card, using the MSI mask bits. Firmware doesn't appear to unmask
          * at that level, so we do it here by hand.
          */
-        if (d->msi_desc)
+        if (irq_data_get_msi_desc(d))
                 pci_msi_unmask_irq(d);
 #endif
         /* unmask it */
diff --git a/arch/tile/kernel/pci_gx.c b/arch/tile/kernel/pci_gx.c
index b1df847d0686..65b701b3b5ed 100644
--- a/arch/tile/kernel/pci_gx.c
+++ b/arch/tile/kernel/pci_gx.c
@@ -1442,7 +1442,7 @@ static struct pci_ops tile_cfg_ops = {
 /* MSI support starts here. */
 static unsigned int tilegx_msi_startup(struct irq_data *d)
 {
-        if (d->msi_desc)
+        if (irq_data_get_msi_desc(d))
                 pci_msi_unmask_irq(d);
 
         return 0;
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 64673f13bbb9..157eb8817fb8 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -1145,7 +1145,7 @@ EXPORT_SYMBOL(pci_enable_msix_range);
  */
 void pci_msi_domain_write_msg(struct irq_data *irq_data, struct msi_msg *msg)
 {
-        struct msi_desc *desc = irq_data->msi_desc;
+        struct msi_desc *desc = irq_data_get_msi_desc(irq_data);
 
         /*
          * For MSI-X desc->irq is always equal to irq_data->irq. For