Patch "ISDN: eicon: silence misleading array-bounds warning" has been added to the 4.9-stable tree

Patch "ISDN: eicon: silence misleading array-bounds warning" has been added to the 4.9-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    ISDN: eicon: silence misleading array-bounds warning

to the 4.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     isdn-eicon-silence-misleading-array-bounds-warning.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 950eabbd6ddedc1b08350b9169a6a51b130ebaaf Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Fri, 27 Jan 2017 13:32:14 +0100
Subject: ISDN: eicon: silence misleading array-bounds warning

From: Arnd Bergmann <arnd@arndb.de>

commit 950eabbd6ddedc1b08350b9169a6a51b130ebaaf upstream.

With some gcc versions, we get a warning about the eicon driver,
and that currently shows up as the only remaining warning in one
of the build bots:

In file included from ../drivers/isdn/hardware/eicon/message.c:30:0:
eicon/message.c: In function 'mixer_notify_update':
eicon/platform.h:333:18: warning: array subscript is above array bounds [-Warray-bounds]

The code is easily changed to open-code the unusual PUT_WORD() line
causing this to avoid the warning.

Link: http://arm-soc.lixom.net/buildlogs/stable-rc/v4.4.45/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/isdn/hardware/eicon/message.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/isdn/hardware/eicon/message.c
+++ b/drivers/isdn/hardware/eicon/message.c
@@ -11297,7 +11297,8 @@ static void mixer_notify_update(PLCI *pl
 				((CAPI_MSG *) msg)->header.ncci = 0;
 				((CAPI_MSG *) msg)->info.facility_req.Selector = SELECTOR_LINE_INTERCONNECT;
 				((CAPI_MSG *) msg)->info.facility_req.structs[0] = 3;
-				PUT_WORD(&(((CAPI_MSG *) msg)->info.facility_req.structs[1]), LI_REQ_SILENT_UPDATE);
+				((CAPI_MSG *) msg)->info.facility_req.structs[1] = LI_REQ_SILENT_UPDATE & 0xff;
+				((CAPI_MSG *) msg)->info.facility_req.structs[2] = LI_REQ_SILENT_UPDATE >> 8;
 				((CAPI_MSG *) msg)->info.facility_req.structs[3] = 0;
 				w = api_put(notify_plci->appl, (CAPI_MSG *) msg);
 				if (w != _QUEUE_FULL)


Patches currently in stable-queue which might be from arnd@arndb.de are

queue-4.9/isdn-eicon-silence-misleading-array-bounds-warning.patch