powerpc/xmon: Fix -Wswitch-unreachable warning in bpt_cmds

[ Upstream commit 1c4a4a4c84 ]

When building with automatic stack variable initialization, GCC 12
complains about variables defined outside of switch case statements.
Move the variable into the case that uses it, which silences the warning:

arch/powerpc/xmon/xmon.c: In function ‘bpt_cmds’:
arch/powerpc/xmon/xmon.c:1529:13: warning: statement will never be executed [-Wswitch-unreachable]
 1529 |         int mode;
      |             ^~~~

Fixes: 09b6c1129f ("powerpc/xmon: Fix compile error with PPC_8xx=y")
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/YySE6FHiOcbWWR+9@work
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Gustavo A. R. Silva 2022-09-16 15:15:04 +01:00 committed by Justin Hammond
parent fc0f2c53a8
commit 6bf3172244

View file

@ -1528,9 +1528,9 @@ bpt_cmds(void)
cmd = inchar();
switch (cmd) {
static const char badaddr[] = "Only kernel addresses are permitted for breakpoints\n";
int mode;
case 'd': /* bd - hardware data breakpoint */
case 'd': { /* bd - hardware data breakpoint */
static const char badaddr[] = "Only kernel addresses are permitted for breakpoints\n";
int mode;
if (xmon_is_ro) {
printf(xmon_ro_msg);
break;
@ -1563,6 +1563,7 @@ bpt_cmds(void)
force_enable_xmon();
break;
}
case 'i': /* bi - hardware instr breakpoint */
if (xmon_is_ro) {