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| author | Thomas Gleixner <tglx@linutronix.de> | 2010-09-28 19:09:51 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2010-10-12 16:53:34 +0200 |
| commit | 39431acb1a4c464e62471cb3058b8ffffb9244db (patch) | |
| tree | ae655b4763f5a801b67b98d9131df534bcdd58d8 /drivers | |
| parent | 1c9db52534a2c0e9776788cd34ccc193289fc18c (diff) | |
| download | linux-stable-39431acb1a4c464e62471cb3058b8ffffb9244db.tar.gz linux-stable-39431acb1a4c464e62471cb3058b8ffffb9244db.tar.bz2 linux-stable-39431acb1a4c464e62471cb3058b8ffffb9244db.zip | |
pci: Cleanup the irq_desc mess in msi
Handing down irq_desc to msi just so that msi can access
irq_desc.irq_data.msi_desc is a pretty stupid idea. The calling code
can hand down a pointer to msi_desc so msi code does not need to know
about the irq descriptor at all.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pci/msi.c | 24 |
1 files changed, 9 insertions, 15 deletions
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 55e0f9378dfe..5fcf5aec680f 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -193,10 +193,8 @@ void unmask_msi_irq(struct irq_data *data) msi_set_mask_bit(data, 0); } -void read_msi_msg_desc(struct irq_desc *desc, struct msi_msg *msg) +void __read_msi_msg(struct msi_desc *entry, struct msi_msg *msg) { - struct msi_desc *entry = get_irq_desc_msi(desc); - BUG_ON(entry->dev->current_state != PCI_D0); if (entry->msi_attrib.is_msix) { @@ -227,15 +225,13 @@ void read_msi_msg_desc(struct irq_desc *desc, struct msi_msg *msg) void read_msi_msg(unsigned int irq, struct msi_msg *msg) { - struct irq_desc *desc = irq_to_desc(irq); + struct msi_desc *entry = get_irq_msi(irq); - read_msi_msg_desc(desc, msg); + __read_msi_msg(entry, msg); } -void get_cached_msi_msg_desc(struct irq_desc *desc, struct msi_msg *msg) +void __get_cached_msi_msg(struct msi_desc *entry, struct msi_msg *msg) { - struct msi_desc *entry = get_irq_desc_msi(desc); - /* Assert that the cache is valid, assuming that * valid messages are not all-zeroes. */ BUG_ON(!(entry->msg.address_hi | entry->msg.address_lo | @@ -246,15 +242,13 @@ void get_cached_msi_msg_desc(struct irq_desc *desc, struct msi_msg *msg) void get_cached_msi_msg(unsigned int irq, struct msi_msg *msg) { - struct irq_desc *desc = irq_to_desc(irq); + struct msi_desc *entry = get_irq_msi(irq); - get_cached_msi_msg_desc(desc, msg); + __get_cached_msi_msg(entry, msg); } -void write_msi_msg_desc(struct irq_desc *desc, struct msi_msg *msg) +void __write_msi_msg(struct msi_desc *entry, struct msi_msg *msg) { - struct msi_desc *entry = get_irq_desc_msi(desc); - if (entry->dev->current_state != PCI_D0) { /* Don't touch the hardware now */ } else if (entry->msi_attrib.is_msix) { @@ -292,9 +286,9 @@ void write_msi_msg_desc(struct irq_desc *desc, struct msi_msg *msg) void write_msi_msg(unsigned int irq, struct msi_msg *msg) { - struct irq_desc *desc = irq_to_desc(irq); + struct msi_desc *entry = get_irq_msi(irq); - write_msi_msg_desc(desc, msg); + __write_msi_msg(entry, msg); } static void free_msi_irqs(struct pci_dev *dev) |