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authorJiang Liu <jiang.liu@linux.intel.com>2015-07-09 11:00:43 +0300
committerThomas Gleixner <tglx@linutronix.de>2015-07-22 19:37:43 +0300
commite39758e0ea769e632e5e3c9f314160e55c2153ff (patch)
treee07ed1e9d6e86ed9c7754451eecc61ddb8ee1dfc /drivers/pci/host/pcie-xilinx.c
parent3bf15f53c963a43c317e65e1709e9f020c04f024 (diff)
downloadlinux-e39758e0ea769e632e5e3c9f314160e55c2153ff.tar.xz
PCI: Use helper functions to access fields in struct msi_desc
Use helper functions to access fields in struct msi_desc, so we could easily refine msi_desc later. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Reviewed-by: Yijing Wang <wangyijing@huawei.com> Cc: Tony Luck <tony.luck@intel.com> Cc: linux-arm-kernel@lists.infradead.org Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Grant Likely <grant.likely@linaro.org> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Stuart Yoder <stuart.yoder@freescale.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Murali Karicheri <m-karicheri2@ti.com> Cc: Jingoo Han <jingoohan1@gmail.com> Cc: Pratyush Anand <pratyush.anand@gmail.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Soeren Brinkmann <soren.brinkmann@xilinx.com> Cc: Srikanth Thokala <sthokal@xilinx.com> Cc: Rob Herring <robh@kernel.org> Link: http://lkml.kernel.org/r/1436428847-8886-9-git-send-email-jiang.liu@linux.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/pci/host/pcie-xilinx.c')
-rw-r--r--drivers/pci/host/pcie-xilinx.c12
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/pci/host/pcie-xilinx.c b/drivers/pci/host/pcie-xilinx.c
index f1a06a091ccb..64454f416639 100644
--- a/drivers/pci/host/pcie-xilinx.c
+++ b/drivers/pci/host/pcie-xilinx.c
@@ -227,18 +227,16 @@ static struct pci_ops xilinx_pcie_ops = {
*/
static void xilinx_pcie_destroy_msi(unsigned int irq)
{
- struct irq_desc *desc;
struct msi_desc *msi;
struct xilinx_pcie_port *port;
- desc = irq_to_desc(irq);
- msi = irq_desc_get_msi_desc(desc);
- port = sys_to_pcie(msi->dev->bus->sysdata);
-
- if (!test_bit(irq, msi_irq_in_use))
+ if (!test_bit(irq, msi_irq_in_use)) {
+ msi = irq_get_msi_desc(irq);
+ port = sys_to_pcie(msi_desc_to_pci_sys_data(msi));
dev_err(port->dev, "Trying to free unused MSI#%d\n", irq);
- else
+ } else {
clear_bit(irq, msi_irq_in_use);
+ }
}
/**