From mboxrd@z Thu Jan 1 00:00:00 1970 From: Beniamino Galvani Subject: [PATCH v3 1/4] spi: core: Add spi_transfer_is_last() helper Date: Sat, 22 Nov 2014 16:21:39 +0100 Message-ID: <1416669702-7841-2-git-send-email-b.galvani@gmail.com> References: <1416669702-7841-1-git-send-email-b.galvani@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: Mark Rutland , devicetree@vger.kernel.org, Russell King , Victor Wan , Pawel Moll , Ian Campbell , linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org, Beniamino Galvani , Rob Herring , Kumar Gala , Carlo Caione , Jerry Cao , linux-arm-kernel@lists.infradead.org To: Mark Brown Return-path: In-Reply-To: <1416669702-7841-1-git-send-email-b.galvani@gmail.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org List-Id: linux-spi.vger.kernel.org This adds the function spi_transfer_is_last() which can be used by drivers to know whether a given transfer is the last one in the current message. Signed-off-by: Beniamino Galvani --- include/linux/spi/spi.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 46d188a..a6ef2a8 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -1049,4 +1049,10 @@ spi_unregister_device(struct spi_device *spi) extern const struct spi_device_id * spi_get_device_id(const struct spi_device *sdev); +static inline bool +spi_transfer_is_last(struct spi_master *master, struct spi_transfer *xfer) +{ + return list_is_last(&xfer->transfer_list, &master->cur_msg->transfers); +} + #endif /* __LINUX_SPI_H */ -- 1.9.1