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);