With arm-linux-gcc-4.2, almost every file we build in the kernel ends up with this warning:
include/linux/fs.h:2648: warning: comparison of unsigned expression < 0 is always false
Later versions don't have this problem, but it's easy enough to work around.
Signed-off-by: Arnd Bergmann arnd@arndb.de --- include/linux/fs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/fs.h b/include/linux/fs.h index 398cf20a706d..782c2a292fd7 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2645,7 +2645,7 @@ static const char * const kernel_read_file_str[] = {
static inline const char *kernel_read_file_id_str(enum kernel_read_file_id id) { - if (id < 0 || id >= READING_MAX_ID) + if ((unsigned)id >= READING_MAX_ID) return kernel_read_file_str[READING_UNKNOWN];
return kernel_read_file_str[id];