[PATCH 4.4 06/20] spi: uapi: spidev: add missing ioctl header

From: Greg Kroah-Hartman
Date: Tue Oct 31 2017 - 06:17:14 EST


4.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Baruch Siach <baruch@xxxxxxxxxx>

commit a2b4a79b88b24c49d98d45a06a014ffd22ada1a4 upstream.

The SPI_IOC_MESSAGE() macro references _IOC_SIZEBITS. Add linux/ioctl.h
to make sure this macro is defined. This fixes the following build
failure of lcdproc with the musl libc:

In file included from .../sysroot/usr/include/sys/ioctl.h:7:0,
from hd44780-spi.c:31:
hd44780-spi.c: In function 'spi_transfer':
hd44780-spi.c:89:24: error: '_IOC_SIZEBITS' undeclared (first use in this function)
status = ioctl(p->fd, SPI_IOC_MESSAGE(1), &xfer);
^

Signed-off-by: Baruch Siach <baruch@xxxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
include/uapi/linux/spi/spidev.h | 1 +
1 file changed, 1 insertion(+)

--- a/include/uapi/linux/spi/spidev.h
+++ b/include/uapi/linux/spi/spidev.h
@@ -23,6 +23,7 @@
#define SPIDEV_H

#include <linux/types.h>
+#include <linux/ioctl.h>

/* User space versions of kernel symbols for SPI clocking modes,
* matching <linux/spi/spi.h>