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Message-ID: <201606220027.euqOehrM%fengguang.wu@intel.com>
Date: Wed, 22 Jun 2016 00:41:04 +0800
From: kbuild test robot <lkp@...el.com>
To: Prasun Maiti <prasunmaiti87@...il.com>
Cc: kbuild-all@...org, Amitkumar Karwar <akarwar@...vell.com>,
Nishant Sarmukadam <nishants@...vell.com>,
Linux Wireless <linux-wireless@...r.kernel.org>,
Linux Next <linux-next@...r.kernel.org>,
Linux Kernel <linux-kernel@...r.kernel.org>,
Kalle Valo <kvalo@...eaurora.org>
Subject: Re: [PATCH] mwifiex: Reduce endian conversion for REG Host Commands
Hi,
[auto build test WARNING on wireless-drivers-next/master]
[also build test WARNING on v4.7-rc4 next-20160621]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Prasun-Maiti/mwifiex-Reduce-endian-conversion-for-REG-Host-Commands/20160621-224149
base: https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next.git master
reproduce:
# apt-get install sparse
make ARCH=x86_64 allmodconfig
make C=1 CF=-D__CHECK_ENDIAN__
sparse warnings: (new ones prefixed by >>)
include/linux/compiler.h:232:8: sparse: attribute 'no_sanitize_address': unknown attribute
>> drivers/net/wireless/marvell/mwifiex/sta_ioctl.c:1339:17: sparse: incompatible types in comparison expression (different base types)
In file included from include/linux/list.h:8:0,
from include/linux/wait.h:6,
from drivers/net/wireless/marvell/mwifiex/decl.h:26,
from drivers/net/wireless/marvell/mwifiex/sta_ioctl.c:20:
drivers/net/wireless/marvell/mwifiex/sta_ioctl.c: In function 'mwifiex_eeprom_read':
include/linux/kernel.h:742:17: warning: comparison of distinct pointer types lacks a cast
(void) (&_min1 == &_min2); \
^
drivers/net/wireless/marvell/mwifiex/sta_ioctl.c:1339:34: note: in expansion of macro 'min'
memcpy(value, rd_eeprom.value, min(MAX_EEPROM_DATA,
^~~
--
include/linux/compiler.h:232:8: sparse: attribute 'no_sanitize_address': unknown attribute
>> drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c:820:25: sparse: incompatible types in comparison expression (different base types)
In file included from include/linux/list.h:8:0,
from include/linux/wait.h:6,
from drivers/net/wireless/marvell/mwifiex/decl.h:26,
from drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c:20:
drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c: In function 'mwifiex_ret_reg_access':
include/linux/kernel.h:742:17: warning: comparison of distinct pointer types lacks a cast
(void) (&_min1 == &_min2); \
^
drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c:821:6: note: in expansion of macro 'min'
min(MAX_EEPROM_DATA, eeprom->byte_count));
^~~
vim +1339 drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
1323 */
1324 int
1325 mwifiex_eeprom_read(struct mwifiex_private *priv, u16 offset, u16 bytes,
1326 u8 *value)
1327 {
1328 int ret;
1329 struct mwifiex_ds_read_eeprom rd_eeprom;
1330
1331 rd_eeprom.offset = offset;
1332 rd_eeprom.byte_count = bytes;
1333
1334 /* Send request to firmware */
1335 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_EEPROM_ACCESS,
1336 HostCmd_ACT_GEN_GET, 0, &rd_eeprom, true);
1337
1338 if (!ret)
> 1339 memcpy(value, rd_eeprom.value, min(MAX_EEPROM_DATA,
1340 rd_eeprom.byte_count));
1341 return ret;
1342 }
1343
1344 /*
1345 * This function sets a generic IE. In addition to generic IE, it can
1346 * also handle WPA, WPA2 and WAPI IEs.
1347 */
---
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