From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ej1-f43.google.com (mail-ej1-f43.google.com [209.85.218.43]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2D8DF34041B for ; Thu, 28 May 2026 09:46:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.43 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779961608; cv=none; b=vEBkeOWqWT4FoMBZ5duDN+4Ts/A3jLRBAuJN3sg3KT3aIwfI+w9D8Ka/7jV+qj77/uf8K93duar8NP7DMprcEDLB9bIL17lsMfKOJ6UIAEIZhDdWx5whtJ6U43hIoI70PmF/3buB6Pn1S+pY2X8qZ8LCthdKPGlw9nDqVk7LfBM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779961608; c=relaxed/simple; bh=U45YX1bVE/BPWSzuoqEAH8fpZ7EUwj9Dz2GGIOroZE0=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=mlMzcWn2hSHHQ7amL0vBthF3qC14mptFslsJgTQZ5S2veg3kJHaZCpgHUhWmOx9UnGrwOu2rRTopYxBiN9klENv+w4f5gRrj8Vgw1NdexXLRDfKaJlN1ig4ld2cNHwQyhNnJhjdhVFggS905TDhebaEhEC7jV1MiGK2O8THkXn8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=GQGMhJdu; arc=none smtp.client-ip=209.85.218.43 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="GQGMhJdu" Received: by mail-ej1-f43.google.com with SMTP id a640c23a62f3a-bcd3c190f71so2017594866b.0 for ; Thu, 28 May 2026 02:46:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1779961606; x=1780566406; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=sS27ZkYmmSuo+TQnd/NA6YerqfqF6DQASvsyjFS6nzs=; b=GQGMhJdutvXGlDQ9P/fbptppFbMKzswvzYGatrgOXaufiGMM0/LMxtoZO9d1R2U/Yj rRlQoUYspW4Bingvp3Anfhg7f+hXQhW+apVSEAJs+jm0SNeqObemgOedYF7wemScjNBs BC85QLhxKCoejpnqXyHQWQGBtIY/Y6ythHaSa3JlieMRZatAlfzmqYVrTTLyJPQCzVlj XW3K4SN7AnLDoNq2MMWLOIbrC8aK2HsoW5ftnUVh8MoZqOveggl8jI8KuekUuK6gk8A7 t6VemZa/M0tCpjQj7R2UbtS6EieTm+PPvVOiqhXcuvUFj9t8xQXqYEHBEUQ9gIULRAqP yx0A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1779961606; x=1780566406; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=sS27ZkYmmSuo+TQnd/NA6YerqfqF6DQASvsyjFS6nzs=; b=c5UdqZa7NJKNJK1hgbRj1msj35H4DgY65EbBxaSn1/gL8nMXn0/+zBFsplzA8TypjC WOoJkSB07z1LWcY0bYp8lezywTUk/BNMVaCDArK2OEVmesm65L5veRFBsWQSYdXplTia vbm0MgqJIo+T1b3Gd7VZdiTnS+ie2dn9drNkqJKdvxsZLy6hhngb8QwwMXQI8ybSqrfJ YBIldLNZcklvRkA26gsz0gffK/g+X13o59YRf+jYHG9sN31tahcq4BqQ+vCRn3g3saFU CKZslWElaNtqPOvz7WrCSFIUhtqz5ziQXhZDgcepw+yHlclGBXo/I7HQaeNlWH6AchuO bGDQ== X-Forwarded-Encrypted: i=1; AFNElJ9ag1jzO2DKTQHpff/QsywMyY1HHFjVqvb3Gn7Ju/JW4KNyzxPBFRMsj94B/Ip4iQOyFa+HOJgfHfDS14SeCLc=@vger.kernel.org X-Gm-Message-State: AOJu0Yw0N28wZsEX+gVve4NKRIK7q1ghc5AHkyqRxp2xCvesw1d9dzDi 3EtIMZdI2NLQj3reuwrxKrZNGfxyA9lZaXMBPe7EAkTKQr5IAfoyG5I1 X-Gm-Gg: Acq92OHxVcokOFt39fLvABg5qPQcSkvkFJXVcVXrCEoSKvAjI/vMExN/7gRoWwJawSO SvcGUW22xO1+/51r7R3KMXChssNTb2cj/e5kLlok0Dgz1q1WPInxp53KhFyyXV9DQylj/NFLL8v ++Itx9rIBSPh9iClfyxgytB+JF92hxK3xes862r8HzZoSphHLM5qB8OiyljA635dX6d1oLx2fMw QpW9VBRKxse6xCPcTikuqU10UO8Oz0/f7ZwFsm1piq2TgZkMkQ0rtfAZMJNGtbyFSO6ezbhEOHF O3AV6Ei3F+OJ9HSzJvo7ivwWwtndw+EkV3B6Ku+qi2jn7AWgsXy3oZnUxAH2QqYUNVHIsqqbxEs hOqJ9IZ3Je1oxdQBV9esF8DsVaW3P0mc6uxyXJ7yNzB5S+AUhJr/modPtJs/kYUOys+MqeTpvBX PlUvbpkYSXPcAlTMKsrS66zDxM6LXGsYBbX4Rz2sF+2h45DMUNyeDQyz1hEGE+rQDuAaagkK9TL o+yn4EaKUhOgopAAmpgcKe9XhecAJ98SYjfow== X-Received: by 2002:a17:906:9918:b0:bdd:52ef:73e3 with SMTP id a640c23a62f3a-bdd52ef77c4mr1250022566b.12.1779961605153; Thu, 28 May 2026 02:46:45 -0700 (PDT) Received: from arch-piotr.tailb7ebba.ts.net (226.55.classcom.pl. [195.150.55.226]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-bdecae32fadsm614281466b.56.2026.05.28.02.46.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 May 2026 02:46:44 -0700 (PDT) From: Piotr Zarycki To: seanjc@google.com, pbonzini@redhat.com Cc: shuah@kernel.org, dmatlack@google.com, vkuznets@redhat.com, kvm@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, Piotr Zarycki Subject: [PATCH] KVM: selftests: hyperv_tlb_flush: use swap() to swap PTEs Date: Thu, 28 May 2026 11:45:42 +0200 Message-ID: <20260528094542.2529735-1-piotr.zarycki@gmail.com> X-Mailer: git-send-email 2.54.0 Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Replace the open-coded swap with the swap() macro. Signed-off-by: Piotr Zarycki --- tools/testing/selftests/kvm/include/test_util.h | 2 ++ tools/testing/selftests/kvm/x86/hyperv_tlb_flush.c | 6 +----- 2 files changed, 3 insertions(+), 5 deletions(-) diff --git a/tools/testing/selftests/kvm/include/test_util.h b/tools/testing/selftests/kvm/include/test_util.h index d9b433b834f1..a66bc9ccba65 100644 --- a/tools/testing/selftests/kvm/include/test_util.h +++ b/tools/testing/selftests/kvm/include/test_util.h @@ -26,6 +26,8 @@ #define msecs_to_usecs(msec) ((msec) * 1000ULL) +#define swap(a, b) do { typeof(a) __tmp = (a); (a) = (b); (b) = __tmp; } while (0) + static inline __printf(1, 2) int _no_printf(const char *format, ...) { return 0; } #ifdef DEBUG diff --git a/tools/testing/selftests/kvm/x86/hyperv_tlb_flush.c b/tools/testing/selftests/kvm/x86/hyperv_tlb_flush.c index 15ee8b7bfc11..514d41f00714 100644 --- a/tools/testing/selftests/kvm/x86/hyperv_tlb_flush.c +++ b/tools/testing/selftests/kvm/x86/hyperv_tlb_flush.c @@ -131,14 +131,10 @@ static void set_expected_val(void *addr, u64 val, int vcpu_id) /* * Update PTEs swapping two test pages. - * TODO: use swap()/xchg() when these are provided. */ static void swap_two_test_pages(gpa_t pte_gva1, gpa_t pte_gva2) { - u64 tmp = *(u64 *)pte_gva1; - - *(u64 *)pte_gva1 = *(u64 *)pte_gva2; - *(u64 *)pte_gva2 = tmp; + swap(*(u64 *)pte_gva1, *(u64 *)pte_gva2); } /* -- 2.54.0