NFC: NCI: nci_spi_recv_frame() now returns (not forward) the read frame

Previously, nci_spi_recv_frame() would directly transmit incoming frames
to the NCI Core. However, it turns out that some NFC NCI Chips will add
additional proprietary headers that must be handled/removed before NCI
Core gets a chance to handle the frame. With this modification, the chip
phy or driver are now responsible to transmit incoming frames to NCI
Core after proper treatment, and NCI SPI becomes a driver helper instead
of sitting between the NFC driver and NCI Core.

As a general rule in NFC, *_recv_frame() APIs are used to deliver an
incoming frame to an upper layer. To better suit the actual purpose of
nci_spi_recv_frame(), and go along with its nci_spi_send()
counterpart, the function is renamed to nci_spi_read()

The skb is returned as the function result

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index 37ba06f2dfa9..1d505317dc67 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -233,6 +233,6 @@ struct nci_spi *nci_spi_allocate_spi(struct spi_device *spi,
                                      u8 acknowledge_mode, unsigned int delay,
                                      struct nci_dev *ndev);
 int nci_spi_send(struct nci_spi *nspi, struct sk_buff *skb);
-int nci_spi_recv_frame(struct nci_spi *nspi);
+struct sk_buff *nci_spi_read(struct nci_spi *nspi);
 
 #endif /* __NCI_CORE_H */