From patchwork Wed Dec 4 13:35:16 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Parthiban Veerasooran X-Patchwork-Id: 13893790 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.153.233]) (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 32A6B1DC182; Wed, 4 Dec 2024 13:36:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=68.232.153.233 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733319368; cv=none; b=gttZXvdS8bqATvspPuYqYs3bmen9Fgbyvg6xjO7nCMxrXAj/DS5tViMnqXwxolwmQQez1oSkg8hTtEqccUIhrXjNMwC54Yp7YuwPSPUn4K/p1+usVhUhFNp6LltLnhqFZnrkhtz3LWrA32RBeipA/4zb2PyZDMNlU9/QNLZEMT8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733319368; c=relaxed/simple; bh=UgXVV6RLZ12V1O6hvyVUVDCgJcOXxL/7UflkUTNl2tY=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=oVGZdFEiyPAG3NUb9ieUFEKJNBHz6F+HAnNMeFZ034XOeAP/pPsJP6Prv2V2aiuho9gHl1gisATwI7AkNsW1yPPl7zUL9RzELbvJpI/FfRkPX8E9XUCzVAGo44vHMcVtxh8/J4+oLHfSg9t8f4wdnjO1bLXdL2N+D3HxGZB017I= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com; spf=pass smtp.mailfrom=microchip.com; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b=CUvdaZZV; arc=none smtp.client-ip=68.232.153.233 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=microchip.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b="CUvdaZZV" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1733319367; x=1764855367; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=UgXVV6RLZ12V1O6hvyVUVDCgJcOXxL/7UflkUTNl2tY=; b=CUvdaZZVCDSVUlDGi9GrYY4jGTHpUba6DKZQKzsBJr2GR/Lq0ZKzIKuA F8yaGqcTNEc6BGPf10/xhXqdpR/wgirYP3nSL2jXF03B2drsdUK/X2Ryu 6cmvGOI+zGD+3RkDEqQrXp9ZeSpo2OSaN1wk6JRBFbc6Y+Xg8/igfkF53 nKYmhOAIbDTM8VKR5ld3TO2GsB3vpX6h6gM4f00r+ZbotODU7Z3qia6c4 iSDuVIKoBMg0pdNdRnnGJ4592QEw+C/bqSeogxrJyv5Cz5Yd7v6LOEulM 9Nr+YdzQ8LKSNOtGJ4WBReL0YaUNDO/qsC1zwmoXUUSZ8z4NwByhHhJep g==; X-CSE-ConnectionGUID: rlrAe6FFQQitUQtWMxh7nA== X-CSE-MsgGUID: o9tbbCM4SGq3h+dZB4QYzA== X-IronPort-AV: E=Sophos;i="6.12,207,1728975600"; d="scan'208";a="266321980" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa5.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 04 Dec 2024 06:36:06 -0700 Received: from chn-vm-ex01.mchp-main.com (10.10.85.143) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Wed, 4 Dec 2024 06:35:25 -0700 Received: from che-ll-i17164.microchip.com (10.10.85.11) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server id 15.1.2507.35 via Frontend Transport; Wed, 4 Dec 2024 06:35:22 -0700 From: Parthiban Veerasooran To: , , , , CC: , , , , Subject: [PATCH net v3 0/2] Fixes on the OPEN Alliance TC6 10BASE-T1x MAC-PHY support generic lib Date: Wed, 4 Dec 2024 19:05:16 +0530 Message-ID: <20241204133518.581207-1-parthiban.veerasooran@microchip.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org This patch series contain the below fixes. - Infinite loop error when tx credits becomes 0. - Race condition between tx skb reference pointers. v2: - Added mutex lock to protect tx skb reference handling. v3: - Added mutex protection in assigning new tx skb to waiting_tx_skb pointer. - Explained the possible scenario for the race condition with the time diagram in the commit message. Parthiban Veerasooran (2): net: ethernet: oa_tc6: fix infinite loop error when tx credits becomes 0 net: ethernet: oa_tc6: fix tx skb race condition between reference pointers drivers/net/ethernet/oa_tc6.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) base-commit: bb18265c3aba92b91a1355609769f3e967b65dee