From patchwork Fri Jun 24 12:13:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Lobakin X-Patchwork-Id: 12894448 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id F3F6ACCA482 for ; Fri, 24 Jun 2022 12:13:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232046AbiFXMN3 (ORCPT ); Fri, 24 Jun 2022 08:13:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35052 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229872AbiFXMN0 (ORCPT ); Fri, 24 Jun 2022 08:13:26 -0400 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 953821400D; Fri, 24 Jun 2022 05:13:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1656072805; x=1687608805; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=7oB2+/tAQ0YbLfBu8lpkzq06X+Z13qiz2lNUmx1L1VE=; b=gRZmWPP1/zu8/BjI8X8QtkR+Tlkky40+eYmnEHfBug4umu11OvYlBi1z 9wduKqRf2ref4vLYX2TmE50BJiVUfxHNDt1qJ+ego5/HJkfoGJ819m4/+ M3sMIXr6372d1U6c3XoZ//ZRiWhfHjfnxX0jjP+QDT/zh0xC3SWtDsT08 /7j9RJhpFrpSJIRB89eM/rXBBU0Wbz98tUT911v+K1cWvpoqG2uYtL+dX WZ9EnRbWvJtYwH7eBEQtUYpNlNcbwZh8lOQuRAKe+NL/xryP2Bp3tKo+A WuwonrQxN3o0T/9NUaNefEbpBmcVvYO7IzYnnYCQWVJSWeFqf+1EbX0bb w==; X-IronPort-AV: E=McAfee;i="6400,9594,10387"; a="306454348" X-IronPort-AV: E=Sophos;i="5.92,218,1650956400"; d="scan'208";a="306454348" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Jun 2022 05:13:25 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.92,218,1650956400"; d="scan'208";a="678522188" Received: from irvmail001.ir.intel.com ([10.43.11.63]) by FMSMGA003.fm.intel.com with ESMTP; 24 Jun 2022 05:13:19 -0700 Received: from newjersey.igk.intel.com (newjersey.igk.intel.com [10.102.20.203]) by irvmail001.ir.intel.com (8.14.3/8.13.6/MailSET/Hub) with ESMTP id 25OCDEo1014999; Fri, 24 Jun 2022 13:13:16 +0100 From: Alexander Lobakin To: Arnd Bergmann , Yury Norov Cc: Alexander Lobakin , Andy Shevchenko , Mark Rutland , Matt Turner , Brian Cain , Geert Uytterhoeven , Yoshinori Sato , Rich Felker , "David S. Miller" , Kees Cook , "Peter Zijlstra (Intel)" , Marco Elver , Borislav Petkov , Tony Luck , Maciej Fijalkowski , Jesse Brandeburg , Greg Kroah-Hartman , Nathan Chancellor , Nick Desaulniers , Tom Rix , kernel test robot , linux-alpha@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-arch@vger.kernel.org, llvm@lists.linux.dev, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH v5 1/9] ia64, processor: fix -Wincompatible-pointer-types in ia64_get_irr() Date: Fri, 24 Jun 2022 14:13:05 +0200 Message-Id: <20220624121313.2382500-2-alexandr.lobakin@intel.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220624121313.2382500-1-alexandr.lobakin@intel.com> References: <20220624121313.2382500-1-alexandr.lobakin@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org test_bit(), as any other bitmap op, takes `unsigned long *` as a second argument (pointer to the actual bitmap), as any bitmap itself is an array of unsigned longs. However, the ia64_get_irr() code passes a ref to `u64` as a second argument. This works with the ia64 bitops implementation due to that they have `void *` as the second argument and then cast it later on. This works with the bitmap API itself due to that `unsigned long` has the same size on ia64 as `u64` (`unsigned long long`), but from the compiler PoV those two are different. Define @irr as `unsigned long` to fix that. That implies no functional changes. Has been hidden for 16 years! Fixes: a58786917ce2 ("[IA64] avoid broken SAL_CACHE_FLUSH implementations") Cc: stable@vger.kernel.org # 2.6.16+ Reported-by: kernel test robot Signed-off-by: Alexander Lobakin Reviewed-by: Andy Shevchenko Reviewed-by: Yury Norov --- arch/ia64/include/asm/processor.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/ia64/include/asm/processor.h b/arch/ia64/include/asm/processor.h index 7cbce290f4e5..757c2f6d8d4b 100644 --- a/arch/ia64/include/asm/processor.h +++ b/arch/ia64/include/asm/processor.h @@ -538,7 +538,7 @@ ia64_get_irr(unsigned int vector) { unsigned int reg = vector / 64; unsigned int bit = vector % 64; - u64 irr; + unsigned long irr; switch (reg) { case 0: irr = ia64_getreg(_IA64_REG_CR_IRR0); break;