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| author | Thomas Gleixner <tglx@linutronix.de> | 2011-02-09 13:16:52 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2011-02-19 12:58:14 +0100 |
| commit | e6bea9c404699223322d7411c6f2ceaec02fa83c (patch) | |
| tree | c006048322aae74b4d60ec2a2a16e1fd941af09b /kernel/irq | |
| parent | dbec07bac614a61e3392c1e7c08cc6a49ad43f7a (diff) | |
| download | lwn-e6bea9c404699223322d7411c6f2ceaec02fa83c.tar.gz lwn-e6bea9c404699223322d7411c6f2ceaec02fa83c.zip | |
genirq: Protect tglx from tripping over his own feet
The irq_desc.status field will either go away or renamed to
settings. Anyway we need to maintain compatibility to avoid breaking
the world and some more. While moving bits into the core, I need to
avoid that I use any of the still existing IRQ_ bits in the core code
by typos. So that file will hold the inline wrappers and some nasty
CPP tricks to break the build when typoed.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/irq')
| -rw-r--r-- | kernel/irq/internals.h | 2 | ||||
| -rw-r--r-- | kernel/irq/irqdesc.c | 4 | ||||
| -rw-r--r-- | kernel/irq/settings.h | 7 |
3 files changed, 11 insertions, 2 deletions
diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h index ae96e688f4e1..8f200310a952 100644 --- a/kernel/irq/internals.h +++ b/kernel/irq/internals.h @@ -13,6 +13,8 @@ # define IRQ_BITMAP_BITS NR_IRQS #endif +#include "settings.h" + #define istate core_internal_state__do_not_mess_with_it extern int noirqdebug; diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index 6f6644f819dd..8b87f2ce0203 100644 --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -79,7 +79,7 @@ static void desc_set_defaults(unsigned int irq, struct irq_desc *desc, int node) desc->irq_data.chip_data = NULL; desc->irq_data.handler_data = NULL; desc->irq_data.msi_desc = NULL; - desc->status = IRQ_DEFAULT_INIT_FLAGS; + desc->status = _IRQ_DEFAULT_INIT_FLAGS; desc->handle_irq = handle_bad_irq; desc->depth = 1; desc->irq_count = 0; @@ -246,7 +246,7 @@ int __init early_irq_init(void) struct irq_desc irq_desc[NR_IRQS] __cacheline_aligned_in_smp = { [0 ... NR_IRQS-1] = { - .status = IRQ_DEFAULT_INIT_FLAGS, + .status = _IRQ_DEFAULT_INIT_FLAGS, .handle_irq = handle_bad_irq, .depth = 1, .lock = __RAW_SPIN_LOCK_UNLOCKED(irq_desc->lock), diff --git a/kernel/irq/settings.h b/kernel/irq/settings.h new file mode 100644 index 000000000000..610f55597ce7 --- /dev/null +++ b/kernel/irq/settings.h @@ -0,0 +1,7 @@ +/* + * Internal header to deal with irq_desc->status which will be renamed + * to irq_desc->settings. + */ +enum { + _IRQ_DEFAULT_INIT_FLAGS = IRQ_DEFAULT_INIT_FLAGS, +}; |