linux-kernel - [PATCH v2] bcm/CmHost.c: Fix noisy compile warnings

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Date:	Wed, 15 Oct 2014 12:01:41 -0700
From:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:	gregkh@...uxfoundation.org
Cc:	Fabio Estevam <fabio.estevam@...escale.com>,
	linux-kernel@...r.kernel.org, mail@...ermatthias.de,
	devel@...verdev.osuosl.org,
	Dan Carpenter <dan.carpenter@...cle.com>,
	Joe Perches <joe@...ches.com>,
	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [PATCH v2] bcm/CmHost.c: Fix noisy compile warnings

From: Fabio Estevam <fabio.estevam@...escale.com>

The Beceem WIMAX was generating compile warnings on 64bit machines,
which were:

drivers/staging/bcm/CmHost.c: In function ‘StoreCmControlResponseMessage’:
drivers/staging/bcm/CmHost.c:1503:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
   (struct bcm_connect_mgr_params *) ntohl(
   ^
drivers/staging/bcm/CmHost.c:1546:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
   (struct bcm_connect_mgr_params *) ntohl(
   ^
drivers/staging/bcm/CmHost.c:1564:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
   (struct bcm_connect_mgr_params *) ntohl(

This resolves the issue by preventing the driver to compile if CONFIG_64BIT
is enabled, since the driver is known to be broken for 64 bit arch's.

CC: Dan Carpenter <dan.carpenter@...cle.com>
CC: Joe Perches <joe@...ches.com>
Signed-off-by: Fabio Estevam <fabio.estevam@...escale.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
v2: change fix from using typecast u64 in the code to altering Kconfig to
    prevent the driver from compiling on 64 bit arch's based on feedback

 drivers/staging/bcm/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/bcm/Kconfig b/drivers/staging/bcm/Kconfig
index 8acf4b2..273b328 100644
--- a/drivers/staging/bcm/Kconfig
+++ b/drivers/staging/bcm/Kconfig
@@ -1,6 +1,6 @@
 config BCM_WIMAX
        tristate "Beceem BCS200/BCS220-3 and BCSM250 wimax support"
-       depends on USB && NET
+       depends on USB && NET && !64BIT
        help
          This is an experimental driver for the Beceem WIMAX chipset used
 	 by Sprint 4G.
-- 
1.9.3

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