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| author | Kristian Høgsberg <krh@redhat.com> | 2007-02-06 20:49:32 +0100 |
|---|---|---|
| committer | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2007-03-09 22:02:51 +0100 |
| commit | 730c32f58ba81b3a4fe6d19c7d9e9829dd96d363 (patch) | |
| tree | 79149d002b095ca27582d4d7ef00c8eefec67170 /drivers/firewire/fw-transaction.h | |
| parent | firewire: Reduce some redundant register definitions. (diff) | |
| download | linux-730c32f58ba81b3a4fe6d19c7d9e9829dd96d363.tar.xz linux-730c32f58ba81b3a4fe6d19c7d9e9829dd96d363.zip | |
firewire: Implement proper transaction cancelation.
Drivers such as fw-sbp2 had no way to properly cancel in-progress
transactions, which could leave a pending transaction or an unset
packet in the low-level queues after kfree'ing the containing
structure. fw_cancel_transaction() lets drivers cancel a submitted
transaction.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Diffstat (limited to 'drivers/firewire/fw-transaction.h')
| -rw-r--r-- | drivers/firewire/fw-transaction.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/firewire/fw-transaction.h b/drivers/firewire/fw-transaction.h index 50ec2c683a31..8f0283cf1a7a 100644 --- a/drivers/firewire/fw-transaction.h +++ b/drivers/firewire/fw-transaction.h @@ -391,6 +391,8 @@ struct fw_card_driver { void (*send_request) (struct fw_card *card, struct fw_packet *packet); void (*send_response) (struct fw_card *card, struct fw_packet *packet); + /* Calling cancel is valid once a packet has been submitted. */ + int (*cancel_packet) (struct fw_card *card, struct fw_packet *packet); /* Allow the specified node ID to do direct DMA out and in of * host memory. The card will disable this for all node when @@ -421,6 +423,9 @@ fw_send_request(struct fw_card *card, struct fw_transaction *t, void *data, size_t length, fw_transaction_callback_t callback, void *callback_data); +int fw_cancel_transaction(struct fw_card *card, + struct fw_transaction *transaction); + void fw_flush_transactions(struct fw_card *card); void fw_send_phy_config(struct fw_card *card, |