aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--drivers/pcmcia/i82365.c7
-rw-r--r--include/asm-xtensa/signal.h2
-rw-r--r--include/linux/signal.h4
-rw-r--r--kernel/irq/manage.c6
4 files changed, 12 insertions, 7 deletions
diff --git a/drivers/pcmcia/i82365.c b/drivers/pcmcia/i82365.c
index bd0308e89815..a2f05f485156 100644
--- a/drivers/pcmcia/i82365.c
+++ b/drivers/pcmcia/i82365.c
@@ -509,7 +509,8 @@ static irqreturn_t i365_count_irq(int irq, void *dev, struct pt_regs *regs)
509static u_int __init test_irq(u_short sock, int irq) 509static u_int __init test_irq(u_short sock, int irq)
510{ 510{
511 debug(2, " testing ISA irq %d\n", irq); 511 debug(2, " testing ISA irq %d\n", irq);
512 if (request_irq(irq, i365_count_irq, 0, "scan", i365_count_irq) != 0) 512 if (request_irq(irq, i365_count_irq, SA_PROBEIRQ, "scan",
513 i365_count_irq) != 0)
513 return 1; 514 return 1;
514 irq_hits = 0; irq_sock = sock; 515 irq_hits = 0; irq_sock = sock;
515 msleep(10); 516 msleep(10);
@@ -561,7 +562,7 @@ static u_int __init isa_scan(u_short sock, u_int mask0)
561 } else { 562 } else {
562 /* Fallback: just find interrupts that aren't in use */ 563 /* Fallback: just find interrupts that aren't in use */
563 for (i = 0; i < 16; i++) 564 for (i = 0; i < 16; i++)
564 if ((mask0 & (1 << i)) && (_check_irq(i, 0) == 0)) 565 if ((mask0 & (1 << i)) && (_check_irq(i, SA_PROBEIRQ) == 0))
565 mask1 |= (1 << i); 566 mask1 |= (1 << i);
566 printk("default"); 567 printk("default");
567 /* If scan failed, default to polled status */ 568 /* If scan failed, default to polled status */
@@ -725,7 +726,7 @@ static void __init add_pcic(int ns, int type)
725 u_int cs_mask = mask & ((cs_irq) ? (1<<cs_irq) : ~(1<<12)); 726 u_int cs_mask = mask & ((cs_irq) ? (1<<cs_irq) : ~(1<<12));
726 for (cs_irq = 15; cs_irq > 0; cs_irq--) 727 for (cs_irq = 15; cs_irq > 0; cs_irq--)
727 if ((cs_mask & (1 << cs_irq)) && 728 if ((cs_mask & (1 << cs_irq)) &&
728 (_check_irq(cs_irq, 0) == 0)) 729 (_check_irq(cs_irq, SA_PROBEIRQ) == 0))
729 break; 730 break;
730 if (cs_irq) { 731 if (cs_irq) {
731 grab_irq = 1; 732 grab_irq = 1;
diff --git a/include/asm-xtensa/signal.h b/include/asm-xtensa/signal.h
index 5d6fc9cdf58d..a99c9aec64ec 100644
--- a/include/asm-xtensa/signal.h
+++ b/include/asm-xtensa/signal.h
@@ -118,9 +118,9 @@ typedef struct {
118 * SA_INTERRUPT is also used by the irq handling routines. 118 * SA_INTERRUPT is also used by the irq handling routines.
119 * SA_SHIRQ is for shared interrupt support on PCI and EISA. 119 * SA_SHIRQ is for shared interrupt support on PCI and EISA.
120 */ 120 */
121#define SA_PROBE SA_ONESHOT
122#define SA_SAMPLE_RANDOM SA_RESTART 121#define SA_SAMPLE_RANDOM SA_RESTART
123#define SA_SHIRQ 0x04000000 122#define SA_SHIRQ 0x04000000
123#define SA_PROBEIRQ 0x08000000
124#endif 124#endif
125 125
126#define SIG_BLOCK 0 /* for blocking signals */ 126#define SIG_BLOCK 0 /* for blocking signals */
diff --git a/include/linux/signal.h b/include/linux/signal.h
index 162a8fd10b29..70739f51a09f 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -14,10 +14,12 @@
14 * 14 *
15 * SA_INTERRUPT is also used by the irq handling routines. 15 * SA_INTERRUPT is also used by the irq handling routines.
16 * SA_SHIRQ is for shared interrupt support on PCI and EISA. 16 * SA_SHIRQ is for shared interrupt support on PCI and EISA.
17 * SA_PROBEIRQ is set by callers when they expect sharing mismatches to occur
17 */ 18 */
18#define SA_PROBE SA_ONESHOT
19#define SA_SAMPLE_RANDOM SA_RESTART 19#define SA_SAMPLE_RANDOM SA_RESTART
20#define SA_SHIRQ 0x04000000 20#define SA_SHIRQ 0x04000000
21#define SA_PROBEIRQ 0x08000000
22
21/* 23/*
22 * As above, these correspond to the IORESOURCE_IRQ_* defines in 24 * As above, these correspond to the IORESOURCE_IRQ_* defines in
23 * linux/ioport.h to select the interrupt line behaviour. When 25 * linux/ioport.h to select the interrupt line behaviour. When
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index ac766ad573e8..1279e3499534 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -246,8 +246,10 @@ int setup_irq(unsigned int irq, struct irqaction * new)
246 246
247mismatch: 247mismatch:
248 spin_unlock_irqrestore(&desc->lock, flags); 248 spin_unlock_irqrestore(&desc->lock, flags);
249 printk(KERN_ERR "%s: irq handler mismatch\n", __FUNCTION__); 249 if (!(new->flags & SA_PROBEIRQ)) {
250 dump_stack(); 250 printk(KERN_ERR "%s: irq handler mismatch\n", __FUNCTION__);
251 dump_stack();
252 }
251 return -EBUSY; 253 return -EBUSY;
252} 254}
253 255