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sparc64: Move request_irq() from ldc_bind() to ldc_alloc()

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The request_irq() needs to be done from ldc_alloc()
to avoid the following (caught by lockdep)

 [00000000004a0738] __might_sleep+0xf8/0x120
 [000000000058bea4] kmem_cache_alloc_trace+0x184/0x2c0
 [00000000004faf80] request_threaded_irq+0x80/0x160
 [000000000044f71c] ldc_bind+0x7c/0x220
 [0000000000452454] vio_port_up+0x54/0xe0
 [00000000101f6778] probe_disk+0x38/0x220 [sunvdc]
 [00000000101f6b8c] vdc_port_probe+0x22c/0x300 [sunvdc]
 [0000000000451a88] vio_device_probe+0x48/0x60
 [000000000074c56c] really_probe+0x6c/0x300
 [000000000074c83c] driver_probe_device+0x3c/0xa0
 [000000000074c92c] __driver_attach+0x8c/0xa0
 [000000000074a6ec] bus_for_each_dev+0x6c/0xa0
 [000000000074c1dc] driver_attach+0x1c/0x40
 [000000000074b0fc] bus_add_driver+0xbc/0x280

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Acked-by: Dwight Engen <dwight.engen@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sowmini Varadhan
2014-09-16 11:37:08 -04:00
committed by David S. Miller
parent 05aa1651e8
commit c21c4ab0d6
4 changed files with 28 additions and 26 deletions
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5
arch/sparc/include/asm/ldc.h
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@@ -53,13 +53,14 @@ struct ldc_channel;
/* Allocate state for a channel. */
struct ldc_channel *ldc_alloc(unsigned long id,
const struct ldc_channel_config *cfgp,
void *event_arg);
void *event_arg,
const char *name);
/* Shut down and free state for a channel. */
void ldc_free(struct ldc_channel *lp);
/* Register TX and RX queues of the link with the hypervisor. */
int ldc_bind(struct ldc_channel *lp, const char *name);
int ldc_bind(struct ldc_channel *lp);
/* For non-RAW protocols we need to complete a handshake before
* communication can proceed. ldc_connect() does that, if the