From patchwork Mon Feb 13 14:00:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vladimir Sementsov-Ogievskiy X-Patchwork-Id: 13138484 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2EA39C6379F for ; Mon, 13 Feb 2023 14:04:19 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pRZOm-0006d1-JJ; Mon, 13 Feb 2023 09:01:42 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pRZOT-0006an-Bg for qemu-devel@nongnu.org; Mon, 13 Feb 2023 09:01:21 -0500 Received: from forwardcorp1c.mail.yandex.net ([178.154.239.200]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pRZOQ-0005sJ-PC for qemu-devel@nongnu.org; Mon, 13 Feb 2023 09:01:21 -0500 Received: from myt6-23a5e62c0090.qloud-c.yandex.net (myt6-23a5e62c0090.qloud-c.yandex.net [IPv6:2a02:6b8:c12:1da3:0:640:23a5:e62c]) by forwardcorp1c.mail.yandex.net (Yandex) with ESMTP id D6E595ED6F; Mon, 13 Feb 2023 17:01:13 +0300 (MSK) Received: from vsementsov-win.yandex-team.ru (unknown [2a02:6b8:b081:6527::1:3a]) by myt6-23a5e62c0090.qloud-c.yandex.net (smtpcorp/Yandex) with ESMTPSA id 51j9w00QYCg1-mBo3N82L; Mon, 13 Feb 2023 17:01:13 +0300 X-Yandex-Fwd: 1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex-team.ru; s=default; t=1676296873; bh=g9E6WR0ER8a6iXcBVUsc2UOZl2HDibzW91Aa8C7mtlI=; h=Message-Id:Date:In-Reply-To:Cc:Subject:References:To:From; b=aVMeaDfl2MoPSXpBAtE8k2HV50a2mjqxgkn6pjz/90BhnzUVpPYImQWeVSinhg1mA gbV3TyaQDYnL221FgQSFUr6erzGklDjs7ZLaRzsmBptHu8lUWqPWmrr55D8SP+laO9 GXim9irVZWkTkXFXEplCdcXqtOBKlo4xaAZkZnoY= Authentication-Results: myt6-23a5e62c0090.qloud-c.yandex.net; dkim=pass header.i=@yandex-team.ru From: Vladimir Sementsov-Ogievskiy To: qemu-devel@nongnu.org Cc: armbru@redhat.com, eblake@redhat.com, eduardo@habkost.net, berrange@redhat.com, pbonzini@redhat.com, marcel.apfelbaum@gmail.com, mst@redhat.com, philmd@linaro.org, vsementsov@yandex-team.ru, den-plotnikov@yandex-team.ru, antonkuchin@yandex-team.ru Subject: [PATCH v4 02/16] pci/shpc: change shpc_get_status() return type to uint8_t Date: Mon, 13 Feb 2023 17:00:49 +0300 Message-Id: <20230213140103.1518173-3-vsementsov@yandex-team.ru> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230213140103.1518173-1-vsementsov@yandex-team.ru> References: <20230213140103.1518173-1-vsementsov@yandex-team.ru> MIME-Version: 1.0 Received-SPF: pass client-ip=178.154.239.200; envelope-from=vsementsov@yandex-team.ru; helo=forwardcorp1c.mail.yandex.net X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org The result of the function is always one byte. The result is always assigned to uint8_t variable. Also, shpc_get_status() should be symmetric to shpc_set_status() which has uint8_t value argument. Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Anton Kuchin --- hw/pci/shpc.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/hw/pci/shpc.c b/hw/pci/shpc.c index 1b3f619dc9..5d71569b13 100644 --- a/hw/pci/shpc.c +++ b/hw/pci/shpc.c @@ -123,10 +123,13 @@ #define SHPC_PCI_TO_IDX(pci_slot) ((pci_slot) - 1) #define SHPC_IDX_TO_PHYSICAL(slot) ((slot) + 1) -static uint16_t shpc_get_status(SHPCDevice *shpc, int slot, uint16_t msk) +static uint8_t shpc_get_status(SHPCDevice *shpc, int slot, uint16_t msk) { uint8_t *status = shpc->config + SHPC_SLOT_STATUS(slot); - return (pci_get_word(status) & msk) >> ctz32(msk); + uint16_t result = (pci_get_word(status) & msk) >> ctz32(msk); + + assert(result <= UINT8_MAX); + return result; } static void shpc_set_status(SHPCDevice *shpc,