diff options
| author | Samuel Ortiz <sameo@linux.intel.com> | 2011-08-19 15:47:11 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-08-24 20:41:44 +0200 |
| commit | e8753043f9fbabffbf087c7f4b514c50ef89541e (patch) | |
| tree | 2c4b382a21500c228005a43e48134d39fdcccbe8 /net/nfc/core.c | |
| parent | bcma: signedness bug in bcma_get_next_core() (diff) | |
| download | linux-e8753043f9fbabffbf087c7f4b514c50ef89541e.tar.xz linux-e8753043f9fbabffbf087c7f4b514c50ef89541e.zip | |
NFC: Reserve tx head and tail room
We can have the NFC core layer allocating the tx head and tail
room for the drivers and avoid 1 or more SKBs copy on write on
the Tx path.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/nfc/core.c')
| -rw-r--r-- | net/nfc/core.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/nfc/core.c b/net/nfc/core.c index b6fd4e1f2057..284e2f6a14ff 100644 --- a/net/nfc/core.c +++ b/net/nfc/core.c @@ -322,7 +322,9 @@ struct nfc_dev *nfc_get_device(unsigned idx) * @supported_protocols: NFC protocols supported by the device */ struct nfc_dev *nfc_allocate_device(struct nfc_ops *ops, - u32 supported_protocols) + u32 supported_protocols, + int tx_headroom, + int tx_tailroom) { static atomic_t dev_no = ATOMIC_INIT(0); struct nfc_dev *dev; @@ -345,6 +347,8 @@ struct nfc_dev *nfc_allocate_device(struct nfc_ops *ops, dev->ops = ops; dev->supported_protocols = supported_protocols; + dev->tx_headroom = tx_headroom; + dev->tx_tailroom = tx_tailroom; spin_lock_init(&dev->targets_lock); nfc_genl_data_init(&dev->genl_data); |