mips/oprofile: Fix fallthrough placement

We want neither
"
include/linux/compiler_attributes.h:201:41: warning: statement will never
be executed [-Wswitch-unreachable]
  201 | # define fallthrough __attribute__((__fallthrough__))
      |                      ^~~~~~~~~~~~~
"
nor
"
include/linux/compiler_attributes.h:201:41: warning: attribute
'fallthrough' not preceding a case label or default label
  201 | # define fallthrough __attribute__((__fallthrough__))
      |                      ^~~~~~~~~~~~~
"

It's not worth adding one more macro. Let's simply place the fallthrough
in between the expansions.

Fixes: c9b029903466 ("MIPS: Use fallthrough for arch/mips")
Cc: stable@vger.kernel.org
Signed-off-by: He Zhe <zhe.he@windriver.com>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c
index 1493c49..55d7b7f 100644 (file)
--- a/arch/mips/oprofile/op_model_mipsxx.c
+++ b/arch/mips/oprofile/op_model_mipsxx.c
@@ -245,7 +245,6 @@ static int mipsxx_perfcount_handler(void)
 
        switch (counters) {
 #define HANDLE_COUNTER(n)                                              \
-       fallthrough;                                                    \
        case n + 1:                                                     \
                control = r_c0_perfctrl ## n();                         \
                counter = r_c0_perfcntr ## n();                         \
@@ -256,8 +255,11 @@ static int mipsxx_perfcount_handler(void)
                        handled = IRQ_HANDLED;                          \
                }
        HANDLE_COUNTER(3)
+       fallthrough;
        HANDLE_COUNTER(2)
+       fallthrough;
        HANDLE_COUNTER(1)
+       fallthrough;
        HANDLE_COUNTER(0)
        }