jlink: deconflict local variables from global symbols

BeagleBone debian 7 builds produce:
    jlink.c: In function 'jlink_speed':
    jlink.c:218:11: error: declaration of 'div' shadows a global declaration [-Werror=shadow]
    jlink.c: In function 'check_trace_freq':
    jlink.c:1065:54: error: declaration of 'div' shadows a global declaration [-Werror=shadow]
    jlink.c: In function 'config_trace':
    jlink.c:1101:11: error: declaration of 'div' shadows a global declaration [-Werror=shadow]

Fix this by changing the local variable to 'divider'.

Change-Id: I96a0cc0f7d4d4af5a56aa1e918e5416d3c61cbfe
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Reviewed-on: http://openocd.zylin.com/3185
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>

diff --git a/src/jtag/drivers/jlink.c b/src/jtag/drivers/jlink.c
index 04297ca07406d1d46eb38c8b074690d85a5a9d1d..84127ab54d822d5ac6a9291f016b0abb695432aa 100644 (file)
--- a/src/jtag/drivers/jlink.c
+++ b/src/jtag/drivers/jlink.c
@@ -215,11 +215,11 @@ static int jlink_speed(int speed)
 {
        int ret;
        uint32_t freq;
-       uint16_t div;
+       uint16_t divider;
        int max_speed;
 
        if (jaylink_has_cap(caps, JAYLINK_DEV_CAP_GET_SPEEDS)) {
-               ret = jaylink_get_speeds(devh, &freq, &div);
+               ret = jaylink_get_speeds(devh, &freq, &divider);
 
                if (ret != JAYLINK_OK) {
                        LOG_ERROR("jaylink_get_speeds() failed: %s.",
@@ -228,7 +228,7 @@ static int jlink_speed(int speed)
                }
 
                freq = freq / 1000;
-               max_speed = freq / div;
+               max_speed = freq / divider;
        } else {
                max_speed = JLINK_MAX_SPEED;
        }
@@ -1062,26 +1062,26 @@ static uint32_t calculate_trace_buffer_size(void)
        return tmp & 0xffffff00;
 }
 
-static bool check_trace_freq(uint32_t freq, uint32_t div, uint32_t trace_freq)
+static bool check_trace_freq(uint32_t freq, uint32_t divider, uint32_t trace_freq)
 {
        double min;
        double deviation;
 
-       min = fabs(1.0 - (freq / ((double)trace_freq * div)));
+       min = fabs(1.0 - (freq / ((double)trace_freq * divider)));
 
-       while (freq / div > 0) {
-               deviation = fabs(1.0 - (freq / ((double)trace_freq * div)));
+       while (freq / divider > 0) {
+               deviation = fabs(1.0 - (freq / ((double)trace_freq * divider)));
 
                if (deviation < 0.03) {
                        LOG_DEBUG("Found suitable frequency divider %u with deviation of "
-                               "%.02f %%.", div, deviation);
+                               "%.02f %%.", divider, deviation);
                        return true;
                }
 
                if (deviation < min)
                        min = deviation;
 
-               div++;
+               divider++;
        }
 
        LOG_ERROR("Selected trace frequency is not supported by the device. "
@@ -1098,7 +1098,7 @@ static int config_trace(bool enabled, enum tpio_pin_protocol pin_protocol,
        int ret;
        uint32_t buffer_size;
        uint32_t freq;
-       uint32_t div;
+       uint32_t divider;
 
        if (!jaylink_has_cap(caps, JAYLINK_DEV_CAP_SWO)) {
                LOG_ERROR("Trace capturing is not supported by the device.");
@@ -1137,7 +1137,7 @@ static int config_trace(bool enabled, enum tpio_pin_protocol pin_protocol,
                return ERROR_FAIL;
        }
 
-       ret = jaylink_swo_get_speeds(devh, JAYLINK_SWO_MODE_UART, &freq, &div);
+       ret = jaylink_swo_get_speeds(devh, JAYLINK_SWO_MODE_UART, &freq, &divider);
 
        if (ret != JAYLINK_OK) {
                LOG_ERROR("jaylink_swo_get_speeds() failed: %s.",
@@ -1146,9 +1146,9 @@ static int config_trace(bool enabled, enum tpio_pin_protocol pin_protocol,
        }
 
        if (!*trace_freq)
-               *trace_freq = freq / div;
+               *trace_freq = freq / divider;
 
-       if (!check_trace_freq(freq, div, *trace_freq))
+       if (!check_trace_freq(freq, divider, *trace_freq))
                return ERROR_FAIL;
 
        LOG_DEBUG("Using %u bytes device memory for trace capturing.", buffer_size);