Fix compilation warning due to wrong cast.
In file included from ./include/linux/kernel.h:19,
from /home/ansuel/openwrt-ansuel/openwrt/build_dir/target-aarch64_cortex-a53_musl/linux-ipq807x_generic/dmx_usb_module-19.12.1/dmx_usb.c:16:
/home/ansuel/openwrt-ansuel/openwrt/build_dir/target-aarch64_cortex-a53_musl/linux-ipq807x_generic/dmx_usb_module-19.12.1/dmx_usb.c: In function 'dmx_usb_write':
./include/linux/kern_levels.h:5:25: error: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' {aka 'long unsigned int'} [-Werror=format=]
5 | #define KERN_SOH "\001" /* ASCII Start Of Header */
| ^~~~~~
./include/linux/printk.h:422:25: note: in definition of macro 'printk_index_wrap'
422 | _p_func(_fmt, ##__VA_ARGS__); \
| ^~~~
/home/ansuel/openwrt-ansuel/openwrt/build_dir/target-aarch64_cortex-a53_musl/linux-ipq807x_generic/dmx_usb_module-19.12.1/dmx_usb.c:41:45: note: in expansion of macro 'printk'
41 | #define dbg(format, arg...) do { if (debug) printk(KERN_DEBUG __FILE__ ": " format "\n" , ## arg); } while (0)
| ^~~~~~
./include/linux/kern_levels.h:15:25: note: in expansion of macro 'KERN_SOH'
15 | #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */
| ^~~~~~~~
/home/ansuel/openwrt-ansuel/openwrt/build_dir/target-aarch64_cortex-a53_musl/linux-ipq807x_generic/dmx_usb_module-19.12.1/dmx_usb.c:41:52: note: in expansion of macro 'KERN_DEBUG'
41 | #define dbg(format, arg...) do { if (debug) printk(KERN_DEBUG __FILE__ ": " format "\n" , ## arg); } while (0)
| ^~~~~~~~~~
/home/ansuel/openwrt-ansuel/openwrt/build_dir/target-aarch64_cortex-a53_musl/linux-ipq807x_generic/dmx_usb_module-19.12.1/dmx_usb.c:409:9: note: in expansion of macro 'dbg'
409 | dbg("%s - minor %d, count = %d", __FUNCTION__, dev->minor, count);
| ^~~
cc1: all warnings being treated as errors
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
e15d9f75da