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author | Dominik Brodowski <linux@dominikbrodowski.net> | 2009-11-08 16:24:46 (GMT) |
---|---|---|
committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2009-11-28 17:03:14 (GMT) |
commit | 5fa9167a1bf5f5a4b7282f5e7ac56a4a5a1fa044 (patch) | |
tree | 2bf23e13308ef683302ff5a92af0ae8bc37c1b60 /drivers/pcmcia/pcmcia_resource.c | |
parent | dd2e5a156525f11754d9b1e0583f6bb49c253d62 (diff) | |
download | linux-fsl-qoriq-5fa9167a1bf5f5a4b7282f5e7ac56a4a5a1fa044.tar.xz |
pcmcia: rework the irq_req_t typedef
Most of the irq_req_t typedef'd struct can be re-worked quite
easily:
(1) IRQInfo2 was unused in any case, so drop it.
(2) IRQInfo1 was used write-only, so drop it.
(3) Instance (private data to be passed to the IRQ handler):
Most PCMCIA drivers using pcmcia_request_irq() to actually
register an IRQ handler set the "dev_id" to the same pointer
as the "priv" pointer in struct pcmcia_device. Modify the two
exceptions (ipwireless, ibmtr_cs) to also work this waym and
set the IRQ handler's "dev_id" to p_dev->priv unconditionally.
(4) Handler is to be of type irq_handler_t.
(5) Handler != NULL already tells whether an IRQ handler is present.
Therefore, we do not need the IRQ_HANDLER_PRESENT flag in
irq_req_t.Attributes.
CC: netdev@vger.kernel.org
CC: linux-bluetooth@vger.kernel.org
CC: linux-ide@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-scsi@vger.kernel.org
CC: alsa-devel@alsa-project.org
CC: Jaroslav Kysela <perex@perex.cz>
CC: Jiri Kosina <jkosina@suse.cz>
CC: Karsten Keil <isdn@linux-pingi.de>
for the Bluetooth parts: Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'drivers/pcmcia/pcmcia_resource.c')
-rw-r--r-- | drivers/pcmcia/pcmcia_resource.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/pcmcia/pcmcia_resource.c b/drivers/pcmcia/pcmcia_resource.c index 1cf7d54..a8bf8c1 100644 --- a/drivers/pcmcia/pcmcia_resource.c +++ b/drivers/pcmcia/pcmcia_resource.c @@ -383,8 +383,8 @@ static int pcmcia_release_irq(struct pcmcia_device *p_dev, irq_req_t *req) s->irq.AssignedIRQ = 0; } - if (req->Attributes & IRQ_HANDLE_PRESENT) { - free_irq(req->AssignedIRQ, req->Instance); + if (req->Handler) { + free_irq(req->AssignedIRQ, p_dev->priv); } #ifdef CONFIG_PCMCIA_PROBE @@ -664,7 +664,7 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req) /* if the underlying IRQ infrastructure allows for it, only allocate * the IRQ, but do not enable it */ - if (!(req->Attributes & IRQ_HANDLE_PRESENT)) + if (!(req->Handler)) type |= IRQ_NOAUTOEN; #endif /* IRQ_NOAUTOEN */ @@ -674,7 +674,7 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req) } else { int try; u32 mask = s->irq_mask; - void *data = &p_dev->dev.driver; /* something unique to this device */ + void *data = p_dev; /* something unique to this device */ for (try = 0; try < 64; try++) { irq = try % 32; @@ -691,12 +691,12 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req) * registering a dummy handle works, i.e. if the IRQ isn't * marked as used by the kernel resource management core */ ret = request_irq(irq, - (req->Attributes & IRQ_HANDLE_PRESENT) ? req->Handler : test_action, + (req->Handler) ? req->Handler : test_action, type, p_dev->devname, - (req->Attributes & IRQ_HANDLE_PRESENT) ? req->Instance : data); + (req->Handler) ? p_dev->priv : data); if (!ret) { - if (!(req->Attributes & IRQ_HANDLE_PRESENT)) + if (!req->Handler) free_irq(irq, data); break; } @@ -713,9 +713,9 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req) irq = s->pci_irq; } - if (ret && (req->Attributes & IRQ_HANDLE_PRESENT)) { + if (ret && req->Handler) { ret = request_irq(irq, req->Handler, type, - p_dev->devname, req->Instance); + p_dev->devname, p_dev->priv); if (ret) { dev_printk(KERN_INFO, &s->dev, "request_irq() failed\n"); |