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| author | Hans de Goede <hdegoede@redhat.com> | 2017-04-08 20:54:20 +0300 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2017-04-14 13:08:51 +0300 |
| commit | 7ee06cb2f840a96be46233181ed4557901a74385 (patch) | |
| tree | 3052730fccc8a45b524c370d5e6d0dec2264722c | |
| parent | 04767b9fc2315c90a1e4bfdee883c0cbc122f30f (diff) | |
| download | linux-7ee06cb2f840a96be46233181ed4557901a74385.tar.xz | |
x86: i8259: export legacy_pic symbol
The classic PC rtc-coms driver has a workaround for broken ACPI device
nodes for it which lack an irq resource. This workaround used to
unconditionally hardcode the irq to 8 in these cases.
This was causing irq conflict problems on systems without a legacy-pic
so a recent patch added an if (nr_legacy_irqs()) guard to the
workaround to avoid this irq conflict.
nr_legacy_irqs() uses the legacy_pic symbol under the hood causing
an undefined symbol error if the rtc-cmos code is build as a module.
This commit exports the legacy_pic symbol to fix this.
Cc: rtc-linux@googlegroups.com
Cc: alexandre.belloni@free-electrons.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
| -rw-r--r-- | arch/x86/kernel/i8259.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c index be22f5a2192e..4e3b8a587c88 100644 --- a/arch/x86/kernel/i8259.c +++ b/arch/x86/kernel/i8259.c @@ -418,6 +418,7 @@ struct legacy_pic default_legacy_pic = { }; struct legacy_pic *legacy_pic = &default_legacy_pic; +EXPORT_SYMBOL(legacy_pic); static int __init i8259A_init_ops(void) { |