Return-path: Received: from mail-ob0-f177.google.com ([209.85.214.177]:63351 "EHLO mail-ob0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751155AbaIIU6B (ORCPT ); Tue, 9 Sep 2014 16:58:01 -0400 From: Larry Finger To: linville@tuxdriver.com Cc: linux-wireless@vger.kernel.org, Larry Finger , netdev@vger.kernel.org, Kbuild test robot Subject: [PATCH] rtlwifi: btcoexist: Fix "always true" warning from commit ed364abffd6e Date: Tue, 9 Sep 2014 15:57:46 -0500 Message-Id: <1410296266-14327-1-git-send-email-Larry.Finger@lwfinger.net> (sfid-20140909_225814_654733_95CB37D1) Sender: linux-wireless-owner@vger.kernel.org List-ID: The 0-DAY kernel build testing backend reports the following warning: drivers/net/wireless/rtlwifi/btcoexist/halbtcoutsrc.c:516 halbtc_bitmask_write_1byte() warn: always true condition '(bit_mask != 4294967295) => (0-255 != u32max)' This problem was introduced in commit ed364abffd6e19bec67b7ccda8237213b8b37640, and arises because the caller of halbtc_bitmask_write_1byte() is using a u8 rather than a u32 for the data. Reported-by: Kbuild test robot Signed-off-by: Larry Finger Cc: Kbuild test robot --- drivers/net/wireless/rtlwifi/btcoexist/halbtcoutsrc.c | 2 +- drivers/net/wireless/rtlwifi/btcoexist/halbtcoutsrc.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/rtlwifi/btcoexist/halbtcoutsrc.c b/drivers/net/wireless/rtlwifi/btcoexist/halbtcoutsrc.c index 3119e8b..0620b22 100644 --- a/drivers/net/wireless/rtlwifi/btcoexist/halbtcoutsrc.c +++ b/drivers/net/wireless/rtlwifi/btcoexist/halbtcoutsrc.c @@ -497,7 +497,7 @@ static u32 halbtc_read_4byte(void *bt_context, u32 reg_addr) return rtl_read_dword(rtlpriv, reg_addr); } -static void halbtc_write_1byte(void *bt_context, u32 reg_addr, u8 data) +static void halbtc_write_1byte(void *bt_context, u32 reg_addr, u32 data) { struct btc_coexist *btcoexist = (struct btc_coexist *)bt_context; struct rtl_priv *rtlpriv = btcoexist->adapter; diff --git a/drivers/net/wireless/rtlwifi/btcoexist/halbtcoutsrc.h b/drivers/net/wireless/rtlwifi/btcoexist/halbtcoutsrc.h index eae1937..0d185e6 100644 --- a/drivers/net/wireless/rtlwifi/btcoexist/halbtcoutsrc.h +++ b/drivers/net/wireless/rtlwifi/btcoexist/halbtcoutsrc.h @@ -359,7 +359,7 @@ typedef u16 (*bfp_btc_r2)(void *btc_context, u32 reg_addr); typedef u32 (*bfp_btc_r4)(void *btc_context, u32 reg_addr); -typedef void (*bfp_btc_w1)(void *btc_context, u32 reg_addr, u8 data); +typedef void (*bfp_btc_w1)(void *btc_context, u32 reg_addr, u32 data); typedef void (*bfp_btc_w1_bit_mak)(void *btc_context, u32 reg_addr, u8 bit_mask, u8 data1b); -- 1.8.4.5