From nobody Tue Feb 10 13:17:43 2026 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [185.203.201.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 95E2733DEE9 for ; Tue, 6 Jan 2026 18:18:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.203.201.7 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767723483; cv=none; b=sGYGtKoubnrxsFgAO4ajCm0Unvic6TLEVHHT/v0vfofq7yN9iGQZBB2wSlcvSyOk8zZguIf1k1WbkFV/MZZc/PPfzcwclGywsWhCvG0es1iz46ZTWgGKQKp8Y6TTOozY/QoUHQCRbjRdy6N8sdOrkgmX02IPRM/yb90Ffv6A41s= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767723483; c=relaxed/simple; bh=gwjlWhZ4LBGnW8grzCKl1p8vrB/AywLKwLC7W60rBSU=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=OEVGRp8HN8cvWxjuEaCKfeGoOdwXtAtvX2lm8aDxLYaV4AjzVqafLh4dqH4DIHF7f5RPIEVQMcirCxgW4YtOW7vv+AuGoBwGYrOGLskSNDYDc3y1LpqVqNsH2EJVmVM/baMGUvMz25XqBPzavdyBnPFicfpp0+CfRu2YqTDvjTI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de; spf=pass smtp.mailfrom=pengutronix.de; arc=none smtp.client-ip=185.203.201.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=pengutronix.de Received: from dude02.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::28]) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1vdBcf-0007cp-Cq; Tue, 06 Jan 2026 19:17:37 +0100 From: Marco Felsch Date: Tue, 06 Jan 2026 19:17:08 +0100 Subject: [PATCH v4 1/4] firmware_loader: expand firmware error codes with up-to-date error Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260106-v6-10-topic-touchscreen-axiom-v4-1-9e9b69c84926@pengutronix.de> References: <20260106-v6-10-topic-touchscreen-axiom-v4-0-9e9b69c84926@pengutronix.de> In-Reply-To: <20260106-v6-10-topic-touchscreen-axiom-v4-0-9e9b69c84926@pengutronix.de> To: Luis Chamberlain , Russ Weight , Greg Kroah-Hartman , "Rafael J. Wysocki" , Andrew Morton , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Dmitry Torokhov , Kamel Bouhara , Marco Felsch , Henrik Rydberg , Danilo Krummrich , Danilo Krummrich Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-input@vger.kernel.org, kernel@pengutronix.de, Marco Felsch X-Mailer: b4 0.14.2 X-SA-Exim-Connect-IP: 2a0a:edc0:0:1101:1d::28 X-SA-Exim-Mail-From: m.felsch@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Add FW_UPLOAD_ERR_DUPLICATE to allow drivers to inform the firmware_loader framework that the update is not required. This can be the case if the user provided firmware matches the current running firmware. Sync lib/test_firmware.c accordingly. Reviewed-by: Russ Weight Reviewed-by: Luis Chamberlain Signed-off-by: Marco Felsch --- drivers/base/firmware_loader/sysfs_upload.c | 1 + include/linux/firmware.h | 2 ++ lib/test_firmware.c | 1 + 3 files changed, 4 insertions(+) diff --git a/drivers/base/firmware_loader/sysfs_upload.c b/drivers/base/fir= mware_loader/sysfs_upload.c index c3797b93c5f5a2ecf2ae34707893c89eb7773154..9e93070b2c24179986b868a24b0= 9cf051776c644 100644 --- a/drivers/base/firmware_loader/sysfs_upload.c +++ b/drivers/base/firmware_loader/sysfs_upload.c @@ -28,6 +28,7 @@ static const char * const fw_upload_err_str[] =3D { [FW_UPLOAD_ERR_RW_ERROR] =3D "read-write-error", [FW_UPLOAD_ERR_WEAROUT] =3D "flash-wearout", [FW_UPLOAD_ERR_FW_INVALID] =3D "firmware-invalid", + [FW_UPLOAD_ERR_DUPLICATE] =3D "firmware-duplicate", }; =20 static const char *fw_upload_progress(struct device *dev, diff --git a/include/linux/firmware.h b/include/linux/firmware.h index aae1b85ffc10e20e9c3c9b6009d26b83efd8cb24..fe7797be4c08cd62cdad9617b8f= 70095d5e0af2f 100644 --- a/include/linux/firmware.h +++ b/include/linux/firmware.h @@ -29,6 +29,7 @@ struct firmware { * @FW_UPLOAD_ERR_RW_ERROR: read or write to HW failed, see kernel log * @FW_UPLOAD_ERR_WEAROUT: FLASH device is approaching wear-out, wait & re= try * @FW_UPLOAD_ERR_FW_INVALID: invalid firmware file + * @FW_UPLOAD_ERR_DUPLICATE: firmware is already up to date (duplicate) * @FW_UPLOAD_ERR_MAX: Maximum error code marker */ enum fw_upload_err { @@ -41,6 +42,7 @@ enum fw_upload_err { FW_UPLOAD_ERR_RW_ERROR, FW_UPLOAD_ERR_WEAROUT, FW_UPLOAD_ERR_FW_INVALID, + FW_UPLOAD_ERR_DUPLICATE, FW_UPLOAD_ERR_MAX }; =20 diff --git a/lib/test_firmware.c b/lib/test_firmware.c index be4f93124901e5faac41f48a66dabe6da56be0ca..952ec1cb03102911dbea9abd648= ab9d9e0112a46 100644 --- a/lib/test_firmware.c +++ b/lib/test_firmware.c @@ -1134,6 +1134,7 @@ static const char * const fw_upload_err_str[] =3D { [FW_UPLOAD_ERR_RW_ERROR] =3D "read-write-error", [FW_UPLOAD_ERR_WEAROUT] =3D "flash-wearout", [FW_UPLOAD_ERR_FW_INVALID] =3D "firmware-invalid", + [FW_UPLOAD_ERR_DUPLICATE] =3D "firmware-duplicate", }; =20 static void upload_err_inject_error(struct test_firmware_upload *tst, --=20 2.47.3