sparc64: Fix PCI error interrupt registry on PSYCHO.

[ Upstream commit 80a56ab626c70468be92e74cf3d288ffaed23fdb ]

We need to pass IRQF_SHARED, otherwise we get things like:

IRQ handler type mismatch for IRQ 33
current handler: PSYCHO_UE
Call Trace:
 [000000000048394c] request_irq+0xac/0x120
 [00000000007c5f6c] psycho_scan_bus+0x98/0x158
 [00000000007c2bc0] pcibios_init+0xdc/0x12c
 [0000000000426a5c] do_one_initcall+0x1c/0x160
 [00000000007c0180] kernel_init+0x9c/0xfc
 [0000000000427050] kernel_thread+0x30/0x60
 [00000000006ae1d0] rest_init+0x10/0x60

on e3500 and similar systems.

On a single board, the UE interrupts of two Psycho nodes
are funneled through the same interrupt, from of_debug=3
dump:

/pci@b,4000: direct translate 2ee --> 21
 ...
/pci@b,2000: direct translate 2ee --> 21

Decimal "33" mentioned above is the hex "21" mentioned here.

Thanks to Meelis Roos for dumps and testing.

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/arch/sparc64/kernel/pci_psycho.c b/arch/sparc64/kernel/pci_psycho.c
index 994dbe0603da037c8a76ee7a7f0e27c5eabc2f42..40bbd6b36a7cf0c532a8ae9d2e11e0cba27c0e6c 100644 (file)
--- a/arch/sparc64/kernel/pci_psycho.c
+++ b/arch/sparc64/kernel/pci_psycho.c
@@ -744,16 +744,16 @@ static void psycho_register_error_handlers(struct pci_pbm_info *pbm)
         * the second will just error out since we do not pass in
         * IRQF_SHARED.
         */
-       err = request_irq(op->irqs[1], psycho_ue_intr, 0,
+       err = request_irq(op->irqs[1], psycho_ue_intr, IRQF_SHARED,
                          "PSYCHO_UE", pbm);
-       err = request_irq(op->irqs[2], psycho_ce_intr, 0,
+       err = request_irq(op->irqs[2], psycho_ce_intr, IRQF_SHARED,
                          "PSYCHO_CE", pbm);
 
        /* This one, however, ought not to fail.  We can just warn
         * about it since the system can still operate properly even
         * if this fails.
         */
-       err = request_irq(op->irqs[0], psycho_pcierr_intr, 0,
+       err = request_irq(op->irqs[0], psycho_pcierr_intr, IRQF_SHARED,
                          "PSYCHO_PCIERR", pbm);
        if (err)
                printk(KERN_WARNING "%s: Could not register PCIERR, "