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 14:41:44 -0400 |
| commit | e8753043f9fbabffbf087c7f4b514c50ef89541e (patch) | |
| tree | 2c4b382a21500c228005a43e48134d39fdcccbe8 /include | |
| parent | 4e0d8cc1006b889909a87f824943bad9a56358e8 (diff) | |
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 'include')
| -rw-r--r-- | include/linux/nfc.h | 2 | ||||
| -rw-r--r-- | include/net/nfc.h | 7 |
2 files changed, 8 insertions, 1 deletions
diff --git a/include/linux/nfc.h b/include/linux/nfc.h index 330a4c5db588..c525e0b5876b 100644 --- a/include/linux/nfc.h +++ b/include/linux/nfc.h @@ -123,4 +123,6 @@ struct sockaddr_nfc { #define NFC_SOCKPROTO_RAW 0 #define NFC_SOCKPROTO_MAX 1 +#define NFC_HEADER_SIZE 1 + #endif /*__LINUX_NFC_H */ diff --git a/include/net/nfc.h b/include/net/nfc.h index cc0130312f70..87b51fe15b70 100644 --- a/include/net/nfc.h +++ b/include/net/nfc.h @@ -82,6 +82,9 @@ struct nfc_dev { struct nfc_genl_data genl_data; u32 supported_protocols; + int tx_headroom; + int tx_tailroom; + struct nfc_ops *ops; }; #define to_nfc_dev(_dev) container_of(_dev, struct nfc_dev, dev) @@ -89,7 +92,9 @@ struct nfc_dev { extern struct class nfc_class; struct nfc_dev *nfc_allocate_device(struct nfc_ops *ops, - u32 supported_protocols); + u32 supported_protocols, + int tx_headroom, + int tx_tailroom); /** * nfc_free_device - free nfc device |