Documentation: Fix int/unsigned int comparison

Signed int - unsigned int comparison fixed in mpssd, prctl, ptp, and
timers in Documentation. In places where 'int argc' and 'const char
**argv' are not used, they are replaced with void

Documentation/mic/mpssd/mpssd.c: Fixed comparison in sum_iovec_len and
disp_iovec

Documentation/prctl/disable-tsc-ctxt-sw-stress-test.c: main signature
changed to void, as parameters 'argc' and 'argv' are never used

Documentation/prctl/disable-tsc-on-off-stress-test.c: main signature
changed to void

Documentation/prctl/disable-tsc-test.c: main signature changed to void

Documentation/ptp/testptp.c: Sign comparison fix
Documentation/timers/hpet_example.c: Sign comparision fix

Signed-off-by: Mahesh Khanwalkar <[e-mail]>
Signed-off-by: Jonathan Corbet <[e-mail]>

Documentation/mic/mpssd/mpssd.c

···
 sum_iovec_len(struct mic_copy_desc *copy)
 {
 	ssize_t sum = 0;
-	int i;
+	unsigned int i;
 
 	for (i = 0; i < copy->iovcnt; i++)
 		sum += copy->iov[i].iov_len;
···
 disp_iovec(struct mic_info *mic, struct mic_copy_desc *copy,
 	   const char *s, int line)
 {
-	int i;
+	unsigned int i;
 
 	for (i = 0; i < copy->iovcnt; i++)
 		mpsslog("%s %s %d copy->iov[%d] addr %p len 0x%zx\n",

Documentation/prctl/disable-tsc-ctxt-sw-stress-test.c

···
 }
 
 
-int main(int argc, char **argv)
+int main(void)
 {
 	int n_tasks = 100, i;
 

Documentation/prctl/disable-tsc-on-off-stress-test.c

···
 }
 
 
-int main(int argc, char **argv)
+int main(void)
 {
 	int n_tasks = 100, i;
 

Documentation/prctl/disable-tsc-test.c

···
 	printf("rdtsc() == ");
 }
 
-int main(int argc, char **argv)
+int main(void)
 {
 	int tsc_val = 0;
 

Documentation/ptp/testptp.c

···
 
 
 	char *progname;
-	int i, c, cnt, fd;
+	unsigned int i;
+	int c, cnt, fd;
 
 	char *device = DEVICE;
 	clockid_t clkid;

Documentation/timers/hpet_example.c

···
 int
 main(int argc, const char ** argv)
 {
-	int	i;
+	unsigned int	i;
 
 	argc--;
 	argv++;