fallthrough: silence warnings

In some switch statements, we want to combine case statements. However, compilers and code analysis tools warn about these cases. To silence them and acknowledge the behavior as expected, label the intentional cases. Signed-off-by: Norbert Manthey <[email protected]>
KernelTestFramework · Aug 21, 2020 · 9bb341f · 9bb341f
1 parent d81aa6f
commit 9bb341f
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/lib/string.c b/lib/string.c
@@ -386,6 +386,9 @@ reswitch:       switch (ch = (unsigned char)*fmt++) {
                         goto handle_nosign;
                 case 'X':
                         upper = 1;
+                        #if defined(__GNUC__) && !defined(__clang__)
+                        __attribute__ ((fallthrough));
+                        #endif
                 case 'x':
                         base = 16;
                         goto handle_nosign;