From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oi1-f195.google.com ([209.85.167.195]:32991 "EHLO mail-oi1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727196AbgBHOKg (ORCPT ); Sat, 8 Feb 2020 09:10:36 -0500 From: Nathan Chancellor Subject: [PATCH] s390/time: Fix clk type in get_tod_clock Date: Sat, 8 Feb 2020 07:08:59 -0700 Message-Id: <20200208140858.47970-1-natechancellor@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-s390-owner@vger.kernel.org List-ID: To: Heiko Carstens , Vasily Gorbik , Christian Borntraeger Cc: linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com, Nathan Chancellor Clang warns: In file included from ../arch/s390/boot/startup.c:3: In file included from ../include/linux/elf.h:5: In file included from ../arch/s390/include/asm/elf.h:132: In file included from ../include/linux/compat.h:10: In file included from ../include/linux/time.h:74: In file included from ../include/linux/time32.h:13: In file included from ../include/linux/timex.h:65: ../arch/s390/include/asm/timex.h:160:20: warning: passing 'unsigned char [16]' to parameter of type 'char *' converts between pointers to integer types with different sign [-Wpointer-sign] get_tod_clock_ext(clk); ^~~ ../arch/s390/include/asm/timex.h:149:44: note: passing argument to parameter 'clk' here static inline void get_tod_clock_ext(char *clk) ^ Change clk's type to just be char so that it matches what happens in get_tod_clock_ext. Fixes: 57b28f66316d ("[S390] s390_hypfs: Add new attributes") Link: https://github.com/ClangBuiltLinux/linux/issues/861 Signed-off-by: Nathan Chancellor --- Alternatively, changing the clk type in get_tod_clock_ext to unsigned which is what it was in the early 2000s. arch/s390/include/asm/timex.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h index 670f14a228e5..6bf3a45ccfec 100644 --- a/arch/s390/include/asm/timex.h +++ b/arch/s390/include/asm/timex.h @@ -155,7 +155,7 @@ static inline void get_tod_clock_ext(char *clk) static inline unsigned long long get_tod_clock(void) { - unsigned char clk[STORE_CLOCK_EXT_SIZE]; + char clk[STORE_CLOCK_EXT_SIZE]; get_tod_clock_ext(clk); return *((unsigned long long *)&clk[1]); -- 2.25.0