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rtc: make definitions in include/uapi/linux/rtc.h actually useful for user space

BIT() macro is not defined in UAPI headers; there is, however, similarly defined _BITUL() macro present in include/uapi/linux/const.h; use it instead and include <linux/const.h> and <linux/ioctl.h> in order to make the definitions provided in the header useful.

Eugene Syromiatnikov committed 6 years ago

Commit b0efe021 parent 5614a4a1 file · +7 −4Browse files

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include/uapi/linux/rtc.h+7−4
@@ -12,6 +12,9 @@ · 11 unmodified lines
1212 #ifndef _UAPI_LINUX_RTC_H_
1313 #define _UAPI_LINUX_RTC_H_
1414
15+#include <linux/const.h>
16+#include <linux/ioctl.h>
17+
1518 /*
1619 * The struct used to pass data via the following ioctl. Similar to the
1720 * struct tm in <time.h>, but it needs to be here so that the kernel
@@ -92,10 +95,10 @@ struct rtc_pll_info { · 74 unmodified lines
9295 #define RTC_PLL_GET _IOR('p', 0x11, struct rtc_pll_info) /* Get PLL correction */
9396 #define RTC_PLL_SET _IOW('p', 0x12, struct rtc_pll_info) /* Set PLL correction */
9497
95−#define RTC_VL_DATA_INVALID BIT(0) /* Voltage too low, RTC data is invalid */
96−#define RTC_VL_BACKUP_LOW BIT(1) /* Backup voltage is low */
97−#define RTC_VL_BACKUP_EMPTY BIT(2) /* Backup empty or not present */
98−#define RTC_VL_ACCURACY_LOW BIT(3) /* Voltage is low, RTC accuracy is reduced */
98+#define RTC_VL_DATA_INVALID _BITUL(0) /* Voltage too low, RTC data is invalid */
99+#define RTC_VL_BACKUP_LOW _BITUL(1) /* Backup voltage is low */
100+#define RTC_VL_BACKUP_EMPTY _BITUL(2) /* Backup empty or not present */
101+#define RTC_VL_ACCURACY_LOW _BITUL(3) /* Voltage is low, RTC accuracy is reduced */
99102
100103 #define RTC_VL_READ _IOR('p', 0x13, unsigned int) /* Voltage low detection */
101104 #define RTC_VL_CLR _IO('p', 0x14) /* Clear voltage low information */