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From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
To: Cliff Whickman <cpw@sgi.com>, Robin Holt <robinmholt@gmail.com>,
	Arnd Bergmann <arnd@arndb.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-kernel@vger.kernel.org,
	"Gustavo A. R. Silva" <gustavo@embeddedor.com>,
	Kees Cook <keescook@chromium.org>
Subject: [PATCH] sgi-xpc: mark expected switch fall-through
Date: Wed, 20 Mar 2019 11:03:18 -0500	[thread overview]
Message-ID: <20190320160318.GA20599@embeddedor> (raw)

In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.

This patch fixes the following warning:

drivers/misc/sgi-xp/xpc_uv.c: In function ‘xpc_handle_activate_mq_msg_uv’:
drivers/misc/sgi-xp/xpc_uv.c:573:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
   xpc_wakeup_channel_mgr(part);
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/misc/sgi-xp/xpc_uv.c:575:2: note: here
  case XPC_ACTIVATE_MQ_MSG_MARK_ENGAGED_UV:
  ^~~~

Warning level 3 was used: -Wimplicit-fallthrough=3

This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
 drivers/misc/sgi-xp/xpc_uv.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/misc/sgi-xp/xpc_uv.c b/drivers/misc/sgi-xp/xpc_uv.c
index 9e443df44b3b..0c6de97dd347 100644
--- a/drivers/misc/sgi-xp/xpc_uv.c
+++ b/drivers/misc/sgi-xp/xpc_uv.c
@@ -572,6 +572,7 @@ xpc_handle_activate_mq_msg_uv(struct xpc_partition *part,
 
 		xpc_wakeup_channel_mgr(part);
 	}
+		/* fall through */
 	case XPC_ACTIVATE_MQ_MSG_MARK_ENGAGED_UV:
 		spin_lock_irqsave(&part_uv->flags_lock, irq_flags);
 		part_uv->flags |= XPC_P_ENGAGED_UV;
-- 
2.21.0


             reply	other threads:[~2019-03-20 16:04 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-20 16:03 Gustavo A. R. Silva [this message]
2019-03-20 16:05 ` [PATCH] sgi-xpc: mark expected switch fall-through Robin Holt

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