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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1774216669; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=w+zR4CHZKqEzE6EWL7+Cb/iO18yqfAa7R5SdF4FE98I=; b=QJUbM72ZPx3QFaBUOYDgCYltuOd0z6gSwl+qxVkTbFNSqN7je361xcmJfkaMrgLfnU3STO dwzg5q2CC/piLM8nsC2luvrkXmOf6YMXyS2sOqAQFjCJ3gKd0vUfrWvCEQfcVetNgAo3jD JDdAYzKEwOhmR6C2Px9ml0eFSTyx7Js= X-MC-Unique: fkfgBn5lOLmpknpw40_tTg-1 X-Mimecast-MFC-AGG-ID: fkfgBn5lOLmpknpw40_tTg_1774216665 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, Peter Maydell , Jamin Lin , Kane Chen , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Subject: [PATCH 3/3] hw/i2c/aspeed_i2c: Remove assert Date: Sun, 22 Mar 2026 22:57:32 +0100 Message-ID: <20260322215732.387383-4-clg@redhat.com> In-Reply-To: <20260322215732.387383-1-clg@redhat.com> References: <20260322215732.387383-1-clg@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 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+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=clg@redhat.com; helo=us-smtp-delivery-124.mimecast.com 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, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1774216734983154100 According to the Aspeed datasheet, the RX_BUF_LEN_W1T and TX_BUF_LEN_W1T bits of the A_I2CS_DMA_LEN (0x2c) register allow firmware to program the TX and RX DMA length (TX_BUF_LEN and RX_BUF_LEN fields of the same register) separately without the need to read/modify/write the value. If RX_BUF_LEN_W1T and TX_BUF_LEN_W1T bits are 0, then both TX and RX DMA length will be written. When setting the RX_BUF_LEN field, the TX_BUF_LEN field being set is not an invalid condition. Remove the assert. Resolves: https://gitlab.com/qemu-project/qemu/-/work_items/3315 Signed-off-by: C=C3=A9dric Le Goater Reviewed-by: Jamin Lin --- hw/i2c/aspeed_i2c.c | 1 - 1 file changed, 1 deletion(-) diff --git a/hw/i2c/aspeed_i2c.c b/hw/i2c/aspeed_i2c.c index ad6342bec0d4..5d18f8d49ea4 100644 --- a/hw/i2c/aspeed_i2c.c +++ b/hw/i2c/aspeed_i2c.c @@ -780,7 +780,6 @@ static void aspeed_i2c_bus_new_write(AspeedI2CBus *bus,= hwaddr offset, bus->regs[R_I2CS_DMA_RX_ADDR] =3D value; break; case A_I2CS_DMA_LEN: - assert(FIELD_EX32(value, I2CS_DMA_LEN, TX_BUF_LEN) =3D=3D 0); if (FIELD_EX32(value, I2CS_DMA_LEN, RX_BUF_LEN_W1T)) { ARRAY_FIELD_DP32(bus->regs, I2CS_DMA_LEN, RX_BUF_LEN, FIELD_EX32(value, I2CS_DMA_LEN, RX_BUF_LEN)); --=20 2.53.0