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[2620:137:e000::1:18]) by mx.google.com with ESMTPS id k2-20020a654642000000b00563da4d2a77si5211848pgr.867.2023.08.20.04.38.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 20 Aug 2023 04:38:37 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18; Authentication-Results: mx.google.com; dkim=pass header.i=@google.com header.s=20221208 header.b=TaGbMUFB; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 6E79B283A9B; Sat, 19 Aug 2023 11:42:45 -0700 (PDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1354080AbjHQSMM (ORCPT + 99 others); Thu, 17 Aug 2023 14:12:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38314 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1354222AbjHQSMB (ORCPT ); Thu, 17 Aug 2023 14:12:01 -0400 Received: from mail-yb1-xb49.google.com (mail-yb1-xb49.google.com [IPv6:2607:f8b0:4864:20::b49]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 36C4A2D44 for ; Thu, 17 Aug 2023 11:12:00 -0700 (PDT) Received: by mail-yb1-xb49.google.com with SMTP id 3f1490d57ef6-d672f55d48dso152920276.2 for ; Thu, 17 Aug 2023 11:12:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1692295919; x=1692900719; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=WDpEeeNNR0Nw6EuE4P52nYwvS2tr5AEnMgO9JS9l+5M=; b=TaGbMUFBJl9KSgciaIgpVCisyqbCRpB7YYBG8v79mOmaHpt1tQW4gawLupbCsjGmej z0M22Qkxwd6H5Xf9tezwcGzF2BEM0GiWrlMbrqI6y1DxAhLEHpA4LEFNbzzvaS5/USQK lnCy83pmJ5KTWktENc5P093oPYM0W7geImacqNCB5v+MvPhMCV3KLqFUNdtuwxAttkjP dtl8Pb8QNhuqq+jGhdU0UI1QD77M36OE/e70pTSQuPwf6Xf8AlWO0BYWDs6MfgyskmLc s0mENOVB8d4jdzMDABjzbc2Nrq6t54AzWyred9TY2rPT9nehfBlceHHhguFaNgrKcA0v avfA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692295919; x=1692900719; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=WDpEeeNNR0Nw6EuE4P52nYwvS2tr5AEnMgO9JS9l+5M=; b=Zspdd0Azkv6i67mDSD9mdcPb6XB+1dFm5INlBduBoIHEQtGo/G/GbpWwsTdlNV8Xgl OHdQWLYxYzpIfA6lQkgel8e4OUD3WT20fjpvpQsq1+iclZp7pxSTNACtHDZ6+FHctybz 38npARWZ6qUSVE43XS4ElGsbE5Sz78GHnSFEP1/9fW7VNdM6xDQZX1rLa7p7qTKn7OWP mm/a7VV80v44GQhCTwe2h0qwTCEVfE4Oxi1pXfclN+fBvyMja2yvJwPIRgVZVR70s6s7 m7eabj4Hnzvq4O+3KuomGFa1cWozTrCU2pCSTTE2YDm7pSxkbUx+UbaPu9EDRoACWyGI hY7A== X-Gm-Message-State: AOJu0YweISPQu3uwVOs8KeuNQm3WJ87iY5sUBlAtBPbJFjikHiRYCXvI tzlU7teZ65inrujAxSYhfLL8yLKZz3AE/JoJxRM= X-Received: from ndesaulniers-desktop.svl.corp.google.com ([2620:15c:2d1:203:ede8:d843:1818:cd60]) (user=ndesaulniers job=sendgmr) by 2002:a25:e7ca:0:b0:d74:347:1e3 with SMTP id e193-20020a25e7ca000000b00d74034701e3mr4153ybh.9.1692295919476; Thu, 17 Aug 2023 11:11:59 -0700 (PDT) Date: Thu, 17 Aug 2023 11:11:56 -0700 Mime-Version: 1.0 X-B4-Tracking: v=1; b=H4sIAOti3mQC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE vPSU3UzU4B8JSMDI2MDC0Nz3YKC5PiK3Pw83RQjC4sUCwNjM0ODVCWg8oKi1LTMCrBR0bG1tQA SG74bWgAAAA== X-Developer-Key: i=ndesaulniers@google.com; a=ed25519; pk=UIrHvErwpgNbhCkRZAYSX0CFd/XFEwqX3D0xqtqjNug= X-Developer-Signature: v=1; a=ed25519-sha256; t=1692295917; l=1306; i=ndesaulniers@google.com; s=20220923; h=from:subject:message-id; bh=KvMdBaUrJ04OP30COeFfEE9LlNaItBIz7QURy18B4Q4=; b=0evZ866zmAcV3WRRll2szvRKmqpke+TXcD3BeqNZENNAC0GzwFFUTYVL/l+EVlX7ETBXDWTYb 1ikpSuCMENIDTDAuHTqXGGIONyo6p216JYBb88Z9dqYHLzGgZbHiDDV X-Mailer: b4 0.12.3 Message-ID: <20230817-ppc_xmon-v1-1-8cc2d51b9995@google.com> Subject: [PATCH] Revert "powerpc/xmon: Relax frame size for clang" From: ndesaulniers@google.com To: Michael Ellerman , Nicholas Piggin , Christophe Leroy , Nathan Chancellor , Tom Rix Cc: Joel Stanley , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev, Nick Desaulniers Content-Type: text/plain; charset="utf-8" X-Spam-Status: No, score=-9.6 required=5.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_PASS,USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This reverts commit 9c87156cce5a63735d1218f0096a65c50a7a32aa. I have not been able to reproduce the reported -Wframe-larger-than= warning (or disassembly) with clang-11 or clang-18. I don't know precisely when this was fixed in llvm, but it may be time to revert this. Closes: https://github.com/ClangBuiltLinux/linux/issues/252 Signed-off-by: Nick Desaulniers --- arch/powerpc/xmon/Makefile | 6 ------ 1 file changed, 6 deletions(-) diff --git a/arch/powerpc/xmon/Makefile b/arch/powerpc/xmon/Makefile index d334de392e6c..7705aa74a24d 100644 --- a/arch/powerpc/xmon/Makefile +++ b/arch/powerpc/xmon/Makefile @@ -10,12 +10,6 @@ KCSAN_SANITIZE := n # Disable ftrace for the entire directory ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) -ifdef CONFIG_CC_IS_CLANG -# clang stores addresses on the stack causing the frame size to blow -# out. See https://github.com/ClangBuiltLinux/linux/issues/252 -KBUILD_CFLAGS += -Wframe-larger-than=4096 -endif - ccflags-$(CONFIG_PPC64) := $(NO_MINIMAL_TOC) obj-y += xmon.o nonstdio.o spr_access.o xmon_bpts.o --- base-commit: 16931859a6500d360b90aeacab3b505a3560a3ed change-id: 20230817-ppc_xmon-d288d803610e Best regards, -- Nick Desaulniers