The patch titled
kernel: shut up the IRQ mismatch messages
has been added to the -mm tree. Its filename is
kernel-shut-up-the-irq-mismatch-messages.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: kernel: shut up the IRQ mismatch messages
From: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
The problem is various drivers legally validly and sensibly try to claim
IRQs but the kernel insists on vomiting forth a giant irrelevant debugging
spew when the types clash.
Edit kernel/irq/manage.c go down to mismatch: in setup_irq() and ifdef out
the if clause that checks for mismatches. It'll then just do the right
thing and work sanely.
For the current -mm kernel this will do the trick (and moves it into shared
irq debugging as in debug mode the info spew is useful). I've had a
variant of this in my private tree for some time as I got fed up on the
mess on boxes where old legacy IRQs get reused.
Signed-off-by: Alan Cox <alan@xxxxxxxxxx>
Cc: Arjan van de Ven <arjan@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: David Woodhouse <dwmw2@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/irq/manage.c | 2 ++
1 files changed, 2 insertions(+)
diff -puN kernel/irq/manage.c~kernel-shut-up-the-irq-mismatch-messages kernel/irq/manage.c
--- a/kernel/irq/manage.c~kernel-shut-up-the-irq-mismatch-messages
+++ a/kernel/irq/manage.c
@@ -328,12 +328,14 @@ int setup_irq(unsigned int irq, struct i
return 0;
mismatch:
+#ifdef CONFIG_DEBUG_SHIRQ
if (!(new->flags & IRQF_PROBE_SHARED)) {
printk(KERN_ERR "IRQ handler type mismatch for IRQ %d\n", irq);
if (old_name)
printk(KERN_ERR "current handler: %s\n", old_name);
dump_stack();
}
+#endif
spin_unlock_irqrestore(&desc->lock, flags);
return -EBUSY;
}
_
Patches currently in -mm which might be from alan@xxxxxxxxxxxxxxxxxxx are
git-libata-all.patch
sis-warning-fixes.patch
kconfig-clarify-ata_piix-description.patch
ata-add-defines-for-the-iordy-bits.patch
libata-add-a-host-flag-to-indicate-lack-of-iordy.patch
libata-early-cfa-adapters-are-not-required-to-support-mode.patch
libata-fix-hopefully-all-the-remaining-problems-with.patch
git-mtd.patch
z85230-spinlock-logic.patch
resend-iphase-64bit-cleanup.patch
make-sure-uart-is-powered-up-when-dumping-mctrl-status.patch
perle-multimodem-card-pci-ras-detection.patch
pnx8550-uart-driver.patch
pnx8550-uart-driver-fixes.patch
drivers-scsi-ncr5380c-replacing-yield-with-a.patch
drivers-scsi-mca_53c9xc-save_flags-cli-removal.patch
x86_64-do-not-enable-the-nmi-watchdog-by-default.patch
geode-support-classic-mediagxm.patch
cyrix-fails-to-detect-mediagx.patch
geode-configuration-fixes.patch
char-tty-delete-wake_up_interruptible-after-tty_wakeup.patch
char-tty_wakeup-cleanup.patch
proc-remove-useless-and-buggy-nlink-settings.patch
tty-improve-encode_baud_rate-logic.patch
kernel-shut-up-the-irq-mismatch-messages.patch
tty-make-__proc_set_tty-static.patch
tty-clarify-disassociate_ctty.patch
tty-fix-the-locking-for-signal-session-in-disassociate_ctty.patch
signal-use-kill_pgrp-not-kill_pg-in-the-sunos-compatibility-code.patch
signal-rewrite-kill_something_info-so-it-uses-newer-helpers.patch
pid-make-session_of_pgrp-use-struct-pid-instead-of-pid_t.patch
pid-use-struct-pid-for-talking-about-process-groups-in-exitc.patch
pid-replace-is_orphaned_pgrp-with-is_current_pgrp_orphaned.patch
tty-update-the-tty-layer-to-work-with-struct-pid.patch
pid-replace-do-while_each_task_pid-with-do-while_each_pid_task.patch
pid-remove-now-unused-do_each_task_pid-and-while_each_task_pid.patch
pid-remove-the-now-unused-kill_pg-kill_pg_info-and-__kill_pg_info.patch
edac-e752x-bit-mask-fix.patch
edac-e752x-byte-access-fix.patch
edac-new-opteron-athlon64-memory-controller-driver.patch
edac-k8-driver-coding-tidy.patch
sched-avoid-div-in-rebalance_tick.patch
pm3fb-kill-pci_find_device-usage.patch
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