net/rds: Replace deprecated strncpy() with strscpy_pad()

strncpy() is deprecated for NUL-terminated destination buffers. Use
strscpy_pad() instead and remove the manual NUL-termination.

Compile-tested only.

Link: https://github.com/KSPP/linux/issues/90
Signed-off-by: Thorsten Blum <[e-mail]>
Reviewed-by: Kees Cook <[e-mail]>
Reviewed-by: Allison Henderson <[e-mail]>
Tested-by: Allison Henderson <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Jakub Kicinski <[e-mail]>

net/rds/stats.c

···
 
 	for (i = 0; i < nr; i++) {
 		BUG_ON(strlen(names[i]) >= sizeof(ctr.name));
-		strncpy(ctr.name, names[i], sizeof(ctr.name) - 1);
-		ctr.name[sizeof(ctr.name) - 1] = '\0';
+		strscpy_pad(ctr.name, names[i]);
 		ctr.value = values[i];
 
 		rds_info_copy(iter, &ctr, sizeof(ctr));