This is a note to let you know that I've just added the patch titled powerpc/xmon: Fix -Wswitch-unreachable warning in bpt_cmds to the 6.1-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: powerpc-xmon-fix-wswitch-unreachable-warning-in-bpt_.patch and it can be found in the queue-6.1 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit eed8f8252df8d33be317269f61f541f234806f42 Author: Gustavo A. R. Silva <gustavoars@xxxxxxxxxx> Date: Fri Sep 16 15:15:04 2022 +0100 powerpc/xmon: Fix -Wswitch-unreachable warning in bpt_cmds [ Upstream commit 1c4a4a4c8410be4a231a58b23e7a30923ff954ac ] 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: 09b6c1129f89 ("powerpc/xmon: Fix compile error with PPC_8xx=y") Signed-off-by: Gustavo A. R. Silva <gustavoars@xxxxxxxxxx> Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx> Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/YySE6FHiOcbWWR+9@work Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index f51c882bf902..e34d7809f6c9 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -1525,9 +1525,9 @@ 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; @@ -1560,6 +1560,7 @@ bpt_cmds(void) force_enable_xmon(); break; + } case 'i': /* bi - hardware instr breakpoint */ if (xmon_is_ro) {