Re: [PATCH] [media] rc: ir-spi: add support for IR LEDs connected with SPI

From: kbuild test robot
Date: Sat Jul 02 2016 - 00:52:23 EST


Hi,

[auto build test WARNING on linuxtv-media/master]
[also build test WARNING on v4.7-rc5 next-20160701]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Andi-Shyti/rc-ir-spi-add-support-for-IR-LEDs-connected-with-SPI/20160702-102955
base: git://linuxtv.org/media_tree.git master
reproduce:
# apt-get install sparse
make ARCH=x86_64 allmodconfig
make C=1 CF=-D__CHECK_ENDIAN__


sparse warnings: (new ones prefixed by >>)

include/linux/compiler.h:232:8: sparse: attribute 'no_sanitize_address': unknown attribute
drivers/media/rc/ir-spi.c:156:14: sparse: undefined identifier 'LIRC_SET_LENGTH'
>> drivers/media/rc/ir-spi.c:156:14: sparse: incompatible types for 'case' statement
drivers/media/rc/ir-spi.c:156:14: sparse: Expected constant expression in case statement
drivers/media/rc/ir-spi.c: In function 'ir_spi_chardev_ioctl':
drivers/media/rc/ir-spi.c:156:7: error: 'LIRC_SET_LENGTH' undeclared (first use in this function)
case LIRC_SET_LENGTH: {
^~~~~~~~~~~~~~~
drivers/media/rc/ir-spi.c:156:7: note: each undeclared identifier is reported only once for each function it appears in

vim +/case +156 drivers/media/rc/ir-spi.c

140
141 static long ir_spi_chardev_ioctl(struct file *file, unsigned int cmd,
142 unsigned long arg)
143 {
144 __u32 p;
145 s32 ret;
146 struct ir_spi_data *idata = file->private_data;
147
148 switch (cmd) {
149 case LIRC_GET_FEATURES:
150 return put_user(idata->lirc_driver.features,
151 (__u32 __user *) arg);
152
153 case LIRC_GET_LENGTH:
154 return put_user(idata->xfer.len, (__u32 __user *) arg);
155
> 156 case LIRC_SET_LENGTH: {
157 void *new;
158
159 ret = get_user(p, (__u32 __user *) arg);
160 if (ret)
161 return ret;
162
163 /*
164 * the user is trying to set the same

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