| From ab87c42dd5e39bca5772b1a1bc964b414a7eed74 Mon Sep 17 00:00:00 2001 |
| From: Sasha Levin <sashal@kernel.org> |
| Date: Sun, 11 Apr 2021 09:41:04 -0700 |
| Subject: csky: fix syscache.c fallthrough warning |
| |
| From: Randy Dunlap <rdunlap@infradead.org> |
| |
| [ Upstream commit 0679d29d3e2351a1c3049c26a63ce1959cad5447 ] |
| |
| This case of the switch statement falls through to the following case. |
| This appears to be on purpose, so declare it as OK. |
| |
| ../arch/csky/mm/syscache.c: In function '__do_sys_cacheflush': |
| ../arch/csky/mm/syscache.c:17:3: warning: this statement may fall through [-Wimplicit-fallthrough=] |
| 17 | flush_icache_mm_range(current->mm, |
| | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 18 | (unsigned long)addr, |
| | ~~~~~~~~~~~~~~~~~~~~ |
| 19 | (unsigned long)addr + bytes); |
| | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| ../arch/csky/mm/syscache.c:20:2: note: here |
| 20 | case DCACHE: |
| | ^~~~ |
| |
| Fixes: 997153b9a75c ("csky: Add flush_icache_mm to defer flush icache all") |
| Signed-off-by: Randy Dunlap <rdunlap@infradead.org> |
| Signed-off-by: Guo Ren <guoren@kernel.org> |
| Cc: linux-csky@vger.kernel.org |
| Cc: Arnd Bergmann <arnd@arndb.de> |
| Signed-off-by: Sasha Levin <sashal@kernel.org> |
| --- |
| arch/csky/mm/syscache.c | 1 + |
| 1 file changed, 1 insertion(+) |
| |
| diff --git a/arch/csky/mm/syscache.c b/arch/csky/mm/syscache.c |
| index ffade2f9a4c8..4e51d63850c4 100644 |
| --- a/arch/csky/mm/syscache.c |
| +++ b/arch/csky/mm/syscache.c |
| @@ -17,6 +17,7 @@ SYSCALL_DEFINE3(cacheflush, |
| flush_icache_mm_range(current->mm, |
| (unsigned long)addr, |
| (unsigned long)addr + bytes); |
| + fallthrough; |
| case DCACHE: |
| dcache_wb_range((unsigned long)addr, |
| (unsigned long)addr + bytes); |
| -- |
| 2.30.2 |
| |