From 92bf5016384561791aa0b4fcdc652efe8665f06c Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Thu, 7 Mar 2019 16:29:36 -0800
Subject: [PATCH] rapidio/mport_cdev: mark expected switch fall-through
In preparation for enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
This patch fixes the following warning:
drivers/rapidio/devices/rio_mport_cdev.c: In function `mport_release_mapping':
drivers/rapidio/devices/rio_mport_cdev.c:2151:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
rio_unmap_inb_region(mport, map->phys_addr);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
CC drivers/regulator/fixed-helper.o
CC drivers/pinctrl/stm32/pinctrl-stm32f429.o
drivers/rapidio/devices/rio_mport_cdev.c:2152:2: note: here
case MAP_DMA:
^~~~
Warning level 3 was used: -Wimplicit-fallthrough=3
This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough.
Link: http://lkml.kernel.org/r/20190212175014.GA14326@embeddedor
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Alexandre Bounine <alex.bou9@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
drivers/rapidio/devices/rio_mport_cdev.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/rapidio/devices/rio_mport_cdev.c b/drivers/rapidio/devices/rio_mport_cdev.c
index cbe467ff1aba9..1e1f42e210a08 100644
--- a/drivers/rapidio/devices/rio_mport_cdev.c
+++ b/drivers/rapidio/devices/rio_mport_cdev.c
@@ -2149,6 +2149,7 @@ static void mport_release_mapping(struct kref *ref)
switch (map->dir) {
case MAP_INBOUND:
rio_unmap_inb_region(mport, map->phys_addr);
+ /* fall through */
case MAP_DMA:
dma_free_coherent(mport->dev.parent, map->size,
map->virt_addr, map->phys_addr);
--
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