From nobody Tue Feb 10 22:35:03 2026 Delivered-To: importer2@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer2=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1623880277653975.6060246565933; Wed, 16 Jun 2021 14:51:17 -0700 (PDT) Received: from localhost ([::1]:60910 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ltdRK-0008Fj-TU for importer2@patchew.org; Wed, 16 Jun 2021 17:51:16 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49046) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ltdJt-0001ML-Ub; Wed, 16 Jun 2021 17:43:34 -0400 Received: from mail-wm1-x32e.google.com ([2a00:1450:4864:20::32e]:50908) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1ltdJs-0006Rr-Bf; Wed, 16 Jun 2021 17:43:33 -0400 Received: by mail-wm1-x32e.google.com with SMTP id k42so179820wms.0; Wed, 16 Jun 2021 14:43:31 -0700 (PDT) Received: from x1w.. (93.red-83-35-24.dynamicip.rima-tde.net. [83.35.24.93]) by smtp.gmail.com with ESMTPSA id m65sm2796646wmm.19.2021.06.16.14.43.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Jun 2021 14:43:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=WmyHaJHcvUKLEVm6aSpmTart9qZchQ/2Um+oWz7mMdA=; b=gSI59bBqHbKcJKwzyvgmBKRH5hvXTSABasX41TFH0De/0Ui4pY4hIG+zBJDeqUbSnC AU9C0rAUllPQMS1RoWs8fBMLcNvLJZ0TpfB6Py1dX3YMzI6Z1P6vYxfOhdqbOwqQtMI0 1jb9RSyzBw+QTY3cbEjP1dWgJm1qFfjjQ33uMbnPvrjFqt8yUmlyDXDx9r6kFglH27AO 67bXjcDjEIcWlX2B3qfEvr+5RAhNehJ06q2u5sCD78bjhGHs5uIp8+5ZhCRz3bBOr15n 8WwoonqxtHQJDib8Lez0oT7RO75UtBh+xQppFshNYBZg/tClz9hWJsJj6o7YGia7pbae jFGQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-transfer-encoding; bh=WmyHaJHcvUKLEVm6aSpmTart9qZchQ/2Um+oWz7mMdA=; b=WEOAd6PSZgPSb8oGihtimP5u9EpBbxecwqawj/PJXQyrOGjh7iiBxxqStsZ99c4Mtr FD7U0ZHhznOWw/P/QZWCNzuIotgg6jSE+7XS4LTOIDyMdbjBRlhIsNAhJpCv1xj5LB42 sGJVaIRL7SGGRBJ0ryntKN131mLYKyn1DOslRy+F8WDJoIY9udr1I2LcQhMzpKHNTQ7H hY3eHlri9gIy5AjueBJxsi+WS/ws6SYSxyVmuHmLZ2KwRMJjwonNk2TEZ9OCPLhmYIIn ohl71aTXEp0YLu1qXa0Ot1F4/L3Nu/U6tX3Wgokrnnj6QWmFMX82u94lvO/wO5u/3xfZ OCRg== X-Gm-Message-State: AOAM533JRswyYZIdVP/Nnpf0i5Yv9Q8x/SwQAxKEU7S+ekZGNBw36W1i 21oKGPsRXpAbJ2O9AJczTt/SJoT0QV+r+g== X-Google-Smtp-Source: ABdhPJzyOnHL/3rjKttzyhAZVqXsPCbeOclDkPiCFEC4/znyX8cGpgc3MpnVNXBnjimOhHz5PakZ0w== X-Received: by 2002:a05:600c:1ca6:: with SMTP id k38mr1147060wms.49.1623879810085; Wed, 16 Jun 2021 14:43:30 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Subject: [PATCH v4 06/15] hw/i2c/ppc4xx_i2c: Replace i2c_send_recv() by i2c_recv() & i2c_send() Date: Wed, 16 Jun 2021 23:42:45 +0200 Message-Id: <20210616214254.2647796-7-f4bug@amsat.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210616214254.2647796-1-f4bug@amsat.org> References: <20210616214254.2647796-1-f4bug@amsat.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::32e; envelope-from=philippe.mathieu.daude@gmail.com; helo=mail-wm1-x32e.google.com X-Spam_score_int: -14 X-Spam_score: -1.5 X-Spam_bar: - X-Spam_report: (-1.5 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.248, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.249, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Corey Minyard , Richard Henderson , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , KONRAD Frederic , qemu-arm@nongnu.org, qemu-ppc@nongnu.org Errors-To: qemu-devel-bounces+importer2=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Instead of using the confuse i2c_send_recv(), rewrite to directly call i2c_recv() & i2c_send(), resulting in code easier to review. Reviewed-by: Richard Henderson Acked-by: Corey Minyard Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- hw/i2c/ppc4xx_i2c.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/hw/i2c/ppc4xx_i2c.c b/hw/i2c/ppc4xx_i2c.c index f4c5bc12d36..75d50f15158 100644 --- a/hw/i2c/ppc4xx_i2c.c +++ b/hw/i2c/ppc4xx_i2c.c @@ -240,11 +240,14 @@ static void ppc4xx_i2c_writeb(void *opaque, hwaddr ad= dr, uint64_t value, i2c->sts &=3D ~IIC_STS_ERR; } } - if (!(i2c->sts & IIC_STS_ERR) && - i2c_send_recv(i2c->bus, &i2c->mdata[i], !recv)) { - i2c->sts |=3D IIC_STS_ERR; - i2c->extsts |=3D IIC_EXTSTS_XFRA; - break; + if (!(i2c->sts & IIC_STS_ERR)) { + if (recv) { + i2c->mdata[i] =3D i2c_recv(i2c->bus); + } else if (i2c_send(i2c->bus, i2c->mdata[i]) < 0) { + i2c->sts |=3D IIC_STS_ERR; + i2c->extsts |=3D IIC_EXTSTS_XFRA; + break; + } } if (value & IIC_CNTL_RPST || !(value & IIC_CNTL_CHT)) { i2c_end_transfer(i2c->bus); --=20 2.31.1