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Commit f7bfca6d authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

pci: pcie-designware: Remove irq_desc abuse 



There is no reason to care about irq_desc in that context, escpecially
as irq_data for that interrupt is retrieved as well.

Use the proper accessor for the msi descriptor

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Acked-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Acked-by: default avatarJingoo Han <jg1.han@samsung.com>
Cc: Mohit Kumar <mohit.kumar@st.com>
Cc: pci <linux-pci@vger.kernel.org>
Link: http://lkml.kernel.org/r/20140223212736.987803648@linutronix.de


Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent b8a9a11b

drivers/pci/host/pcie-designware.c

+1 −3
Original line number Diff line number Diff line
@@ -294,14 +294,12 @@ static int assign_irq(int no_irqs, struct msi_desc *desc, int *pos) 
static void clear_irq(unsigned int irq)

{

	unsigned int pos, nvec;

	struct irq_desc *desc;

	struct msi_desc *msi;

	struct pcie_port *pp;

	struct irq_data *data = irq_get_irq_data(irq);



	/* get the port structure */

	desc = irq_to_desc(irq);

	msi = irq_desc_get_msi_desc(desc);

	msi = irq_data_get_msi(data);

	pp = sys_to_pcie(msi->dev->bus->sysdata);

	if (!pp) {

		BUG();