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ESMTP id CD3854A558 for ; Wed, 31 Jul 2019 13:37:15 -0400 (EDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 67BC615BF; Wed, 31 Jul 2019 10:37:15 -0700 (PDT) Received: from big-swifty.lan (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id B672C3F71F; Wed, 31 Jul 2019 10:37:12 -0700 (PDT) From: Marc Zyngier To: Paolo Bonzini , =?UTF-8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?= Subject: [PATCH 5/5] arm64: KVM: hyp: debug-sr: Mark expected switch fall-through Date: Wed, 31 Jul 2019 18:36:50 +0100 Message-Id: <20190731173650.12627-6-maz@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190731173650.12627-1-maz@kernel.org> References: <20190731173650.12627-1-maz@kernel.org> MIME-Version: 1.0 Cc: Anders Roxell , kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu RnJvbTogQW5kZXJzIFJveGVsbCA8YW5kZXJzLnJveGVsbEBsaW5hcm8ub3JnPgoKV2hlbiBmYWxs LXRocm91Z2ggd2FybmluZ3Mgd2FzIGVuYWJsZWQgYnkgZGVmYXVsdCB0aGUgZm9sbG93aW5nIHdh cm5pbmdzCndhcyBzdGFydGluZyB0byBzaG93IHVwOgoKLi4vYXJjaC9hcm02NC9rdm0vaHlwL2Rl YnVnLXNyLmM6IEluIGZ1bmN0aW9uIOKAmF9fZGVidWdfc2F2ZV9zdGF0ZeKAmToKLi4vYXJjaC9h cm02NC9rdm0vaHlwL2RlYnVnLXNyLmM6MjA6MTk6IHdhcm5pbmc6IHRoaXMgc3RhdGVtZW50IG1h eSBmYWxsCiB0aHJvdWdoIFstV2ltcGxpY2l0LWZhbGx0aHJvdWdoPV0KICBjYXNlIDE1OiBwdHJb MTVdID0gcmVhZF9kZWJ1ZyhyZWcsIDE1KTsgICBcCi4uL2FyY2gvYXJtNjQva3ZtL2h5cC9kZWJ1 Zy1zci5jOjExMzoyOiBub3RlOiBpbiBleHBhbnNpb24gb2YgbWFjcm8g4oCYc2F2ZV9kZWJ1Z+KA mQogIHNhdmVfZGVidWcoZGJnLT5kYmdfYmNyLCBkYmdiY3IsIGJycHMpOwogIF5+fn5+fn5+fn4K 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usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 67BC615BF; Wed, 31 Jul 2019 10:37:15 -0700 (PDT) Received: from big-swifty.lan (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id B672C3F71F; Wed, 31 Jul 2019 10:37:12 -0700 (PDT) From: Marc Zyngier To: Paolo Bonzini , =?UTF-8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?= Subject: [PATCH 5/5] arm64: KVM: hyp: debug-sr: Mark expected switch fall-through Date: Wed, 31 Jul 2019 18:36:50 +0100 Message-Id: <20190731173650.12627-6-maz@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190731173650.12627-1-maz@kernel.org> References: <20190731173650.12627-1-maz@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190731_103716_296654_CC23AD76 X-CRM114-Status: UNSURE ( 8.95 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Anders Roxell , kvm@vger.kernel.org, Suzuki K Poulose , Julien Thierry , James Morse , Zenghui Yu , Andrew Murray , kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org RnJvbTogQW5kZXJzIFJveGVsbCA8YW5kZXJzLnJveGVsbEBsaW5hcm8ub3JnPgoKV2hlbiBmYWxs LXRocm91Z2ggd2FybmluZ3Mgd2FzIGVuYWJsZWQgYnkgZGVmYXVsdCB0aGUgZm9sbG93aW5nIHdh cm5pbmdzCndhcyBzdGFydGluZyB0byBzaG93IHVwOgoKLi4vYXJjaC9hcm02NC9rdm0vaHlwL2Rl YnVnLXNyLmM6IEluIGZ1bmN0aW9uIOKAmF9fZGVidWdfc2F2ZV9zdGF0ZeKAmToKLi4vYXJjaC9h cm02NC9rdm0vaHlwL2RlYnVnLXNyLmM6MjA6MTk6IHdhcm5pbmc6IHRoaXMgc3RhdGVtZW50IG1h 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DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7C36CC32753 for ; Wed, 31 Jul 2019 17:37:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 51E732067D for ; Wed, 31 Jul 2019 17:37:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1564594637; bh=zhHyuvJWOugUChTopaBb5CxdIPmlEX/K8gdpKn5iA2o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=14PQ8KDaPU4oq2eDa3ayQYSEXFiDhoLdxJkrya8jYQXhHRqWazXertPw2izpX6Ji6 NHBcdyZUg1oGvhvHmDstYGeYOShYHiauqFzJksBH8KGUT8bLXv0hliDGqbd5XO0cpv nZiOMNLqKb/6E2jNfnoE556F3FeEGYRViE/jELDs= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729208AbfGaRhQ (ORCPT ); Wed, 31 Jul 2019 13:37:16 -0400 Received: from foss.arm.com ([217.140.110.172]:52552 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728914AbfGaRhP (ORCPT ); Wed, 31 Jul 2019 13:37:15 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 67BC615BF; Wed, 31 Jul 2019 10:37:15 -0700 (PDT) Received: from big-swifty.lan (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id B672C3F71F; Wed, 31 Jul 2019 10:37:12 -0700 (PDT) From: Marc Zyngier To: Paolo Bonzini , =?UTF-8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?= Cc: Anders Roxell , Andrew Murray , James Morse , Julien Thierry , Zenghui Yu , Suzuki K Poulose , linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org Subject: [PATCH 5/5] arm64: KVM: hyp: debug-sr: Mark expected switch fall-through Date: Wed, 31 Jul 2019 18:36:50 +0100 Message-Id: <20190731173650.12627-6-maz@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190731173650.12627-1-maz@kernel.org> References: <20190731173650.12627-1-maz@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org From: Anders Roxell When fall-through warnings was enabled by default the following warnings was starting to show up: ../arch/arm64/kvm/hyp/debug-sr.c: In function ‘__debug_save_state’: ../arch/arm64/kvm/hyp/debug-sr.c:20:19: warning: this statement may fall through [-Wimplicit-fallthrough=] case 15: ptr[15] = read_debug(reg, 15); \ ../arch/arm64/kvm/hyp/debug-sr.c:113:2: note: in expansion of macro ‘save_debug’ save_debug(dbg->dbg_bcr, dbgbcr, brps); ^~~~~~~~~~ ../arch/arm64/kvm/hyp/debug-sr.c:21:2: note: here case 14: ptr[14] = read_debug(reg, 14); \ ^~~~ ../arch/arm64/kvm/hyp/debug-sr.c:113:2: note: in expansion of macro ‘save_debug’ save_debug(dbg->dbg_bcr, dbgbcr, brps); ^~~~~~~~~~ ../arch/arm64/kvm/hyp/debug-sr.c:21:19: warning: this statement may fall through [-Wimplicit-fallthrough=] case 14: ptr[14] = read_debug(reg, 14); \ ../arch/arm64/kvm/hyp/debug-sr.c:113:2: note: in expansion of macro ‘save_debug’ save_debug(dbg->dbg_bcr, dbgbcr, brps); ^~~~~~~~~~ ../arch/arm64/kvm/hyp/debug-sr.c:22:2: note: here case 13: ptr[13] = read_debug(reg, 13); \ ^~~~ ../arch/arm64/kvm/hyp/debug-sr.c:113:2: note: in expansion of macro ‘save_debug’ save_debug(dbg->dbg_bcr, dbgbcr, brps); ^~~~~~~~~~ Rework to add a 'Fall through' comment where the compiler warned about fall-through, hence silencing the warning. Fixes: d93512ef0f0e ("Makefile: Globally enable fall-through warning") Signed-off-by: Anders Roxell [maz: fixed commit message] Signed-off-by: Marc Zyngier --- arch/arm64/kvm/hyp/debug-sr.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/arch/arm64/kvm/hyp/debug-sr.c b/arch/arm64/kvm/hyp/debug-sr.c index 26781da3ad3e..0fc9872a1467 100644 --- a/arch/arm64/kvm/hyp/debug-sr.c +++ b/arch/arm64/kvm/hyp/debug-sr.c @@ -18,40 +18,70 @@ #define save_debug(ptr,reg,nr) \ switch (nr) { \ case 15: ptr[15] = read_debug(reg, 15); \ + /* Fall through */ \ case 14: ptr[14] = read_debug(reg, 14); \ + /* Fall through */ \ case 13: ptr[13] = read_debug(reg, 13); \ + /* Fall through */ \ case 12: ptr[12] = read_debug(reg, 12); \ + /* Fall through */ \ case 11: ptr[11] = read_debug(reg, 11); \ + /* Fall through */ \ case 10: ptr[10] = read_debug(reg, 10); \ + /* Fall through */ \ case 9: ptr[9] = read_debug(reg, 9); \ + /* Fall through */ \ case 8: ptr[8] = read_debug(reg, 8); \ + /* Fall through */ \ case 7: ptr[7] = read_debug(reg, 7); \ + /* Fall through */ \ case 6: ptr[6] = read_debug(reg, 6); \ + /* Fall through */ \ case 5: ptr[5] = read_debug(reg, 5); \ + /* Fall through */ \ case 4: ptr[4] = read_debug(reg, 4); \ + /* Fall through */ \ case 3: ptr[3] = read_debug(reg, 3); \ + /* Fall through */ \ case 2: ptr[2] = read_debug(reg, 2); \ + /* Fall through */ \ case 1: ptr[1] = read_debug(reg, 1); \ + /* Fall through */ \ default: ptr[0] = read_debug(reg, 0); \ } #define restore_debug(ptr,reg,nr) \ switch (nr) { \ case 15: write_debug(ptr[15], reg, 15); \ + /* Fall through */ \ case 14: write_debug(ptr[14], reg, 14); \ + /* Fall through */ \ case 13: write_debug(ptr[13], reg, 13); \ + /* Fall through */ \ case 12: write_debug(ptr[12], reg, 12); \ + /* Fall through */ \ case 11: write_debug(ptr[11], reg, 11); \ + /* Fall through */ \ case 10: write_debug(ptr[10], reg, 10); \ + /* Fall through */ \ case 9: write_debug(ptr[9], reg, 9); \ + /* Fall through */ \ case 8: write_debug(ptr[8], reg, 8); \ + /* Fall through */ \ case 7: write_debug(ptr[7], reg, 7); \ + /* Fall through */ \ case 6: write_debug(ptr[6], reg, 6); \ + /* Fall through */ \ case 5: write_debug(ptr[5], reg, 5); \ + /* Fall through */ \ case 4: write_debug(ptr[4], reg, 4); \ + /* Fall through */ \ case 3: write_debug(ptr[3], reg, 3); \ + /* Fall through */ \ case 2: write_debug(ptr[2], reg, 2); \ + /* Fall through */ \ case 1: write_debug(ptr[1], reg, 1); \ + /* Fall through */ \ default: write_debug(ptr[0], reg, 0); \ } -- 2.20.1