lkml.org 
[lkml]   [2006]   [Nov]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[patch] IRQ handler type mismatch for IRQ 14
From: Ingo Molnar <mingo@elte.hu>
Subject: [patch] IRQ handler type mismatch for IRQ 14

got this with all SATA/PATA drivers enabled:

Calling initcall 0xc05aceed: legacy_init+0x0/0x5b3()
ata5: PATA max PIO4 cmd 0x170 ctl 0x376 bmdma 0x0 irq 14
IRQ handler type mismatch for IRQ 14
current handler: ide0
[<c010501e>] dump_trace+0x64/0x1cc
[<c010519f>] show_trace_log_lvl+0x19/0x2e
[<c0105511>] show_trace+0x12/0x14
[<c010552a>] dump_stack+0x17/0x19
[<c016078f>] setup_irq+0x1c2/0x1dc
[<c0160830>] request_irq+0x87/0xa7
[<c02cc7c6>] ata_device_add+0x296/0x4dc
[<c05ad3e0>] legacy_init+0x4f3/0x5b3
[<c01004f9>] init+0x135/0x3c0
[<c0104d67>] kernel_thread_helper+0x7/0x10

the patch below solves it, although i suspect the irq_flags field could
be eliminated altogether now - all drivers must be prepared to handle
shared interrupts.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

Index: linux/drivers/ata/libata-core.c
===================================================================
--- linux.orig/drivers/ata/libata-core.c
+++ linux/drivers/ata/libata-core.c
@@ -5526,8 +5526,8 @@ int ata_device_add(const struct ata_prob
}

/* obtain irq, that may be shared between channels */
- rc = request_irq(ent->irq, ent->port_ops->irq_handler, ent->irq_flags,
- DRV_NAME, host);
+ rc = request_irq(ent->irq, ent->port_ops->irq_handler,
+ ent->irq_flags | SA_SHIRQ, DRV_NAME, host);
if (rc) {
dev_printk(KERN_ERR, dev, "irq %lu request failed: %d\n",
ent->irq, rc);
@@ -5540,8 +5540,8 @@ int ata_device_add(const struct ata_prob
so trap it now */
BUG_ON(ent->irq == ent->irq2);

- rc = request_irq(ent->irq2, ent->port_ops->irq_handler, ent->irq_flags,
- DRV_NAME, host);
+ rc = request_irq(ent->irq2, ent->port_ops->irq_handler,
+ ent->irq_flags | SA_SHIRQ, DRV_NAME, host);
if (rc) {
dev_printk(KERN_ERR, dev, "irq %lu request failed: %d\n",
ent->irq2, rc);
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
\
 
 \ /
  Last update: 2006-11-28 09:47    [W:0.026 / U:0.620 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site