[DeviceDrivers][MMC] rename fls to __rt_fls

components/drivers/include/drivers/mmcsd_core.h

@@ -185,7 +185,7 @@ struct rt_mmcsd_req {
  * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
  */
 
-rt_inline rt_uint32_t fls(rt_uint32_t val)
+rt_inline rt_uint32_t __rt_fls(rt_uint32_t val)
 {
 	rt_uint32_t  bit = 32;
 

components/drivers/sdio/mmcsd_core.c

@@ -548,7 +548,7 @@ rt_uint32_t mmcsd_select_voltage(struct rt_mmcsd_host *host, rt_uint32_t ocr)
 
 static void mmcsd_power_up(struct rt_mmcsd_host *host)
 {
-    int bit = fls(host->valid_ocr) - 1;
+    int bit = __rt_fls(host->valid_ocr) - 1;
 
     host->io_cfg.vdd = bit;
     if (controller_is_spi(host))