From patchwork Sun Dec 19 11:28:36 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Coelho X-Patchwork-Id: 526834 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 507FFC433FE for ; Sun, 19 Dec 2021 11:28:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235666AbhLSL2y (ORCPT ); Sun, 19 Dec 2021 06:28:54 -0500 Received: from paleale.coelho.fi ([176.9.41.70]:51472 "EHLO farmhouse.coelho.fi" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S235650AbhLSL2x (ORCPT ); Sun, 19 Dec 2021 06:28:53 -0500 Received: from 91-156-5-105.elisa-laajakaista.fi ([91.156.5.105] helo=kveik.ger.corp.intel.com) by farmhouse.coelho.fi with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1myuN1-001O73-7Y; Sun, 19 Dec 2021 13:28:51 +0200 From: Luca Coelho To: kvalo@kernel.org Cc: luca@coelho.fi, linux-wireless@vger.kernel.org Date: Sun, 19 Dec 2021 13:28:36 +0200 Message-Id: X-Mailer: git-send-email 2.34.1 In-Reply-To: <20211219112836.132859-1-luca@coelho.fi> References: <20211219112836.132859-1-luca@coelho.fi> MIME-Version: 1.0 Subject: [PATCH 12/12] iwlwifi: yoyo: fix issue with new DBGI_SRAM region read. Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Mukesh Sisodiya NIC has been grabbed for reading twice which is leading to NIC hang. Code correction are done for reading data with no grab function. Signed-off-by: Luca Coelho --- drivers/net/wireless/intel/iwlwifi/fw/dbg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c index 35af228be3aa..7ad9cee925da 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c +++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c @@ -1564,7 +1564,7 @@ iwl_dump_ini_dbgi_sram_iter(struct iwl_fw_runtime *fwrt, iwl_write_prph_no_grab(fwrt->trans, DBGI_SRAM_TARGET_ACCESS_CFG, DBGI_SRAM_TARGET_ACCESS_CFG_RESET_ADDRESS_MSK); for (i = 0; i < (le32_to_cpu(reg->dev_addr.size) / 4); i++) { - prph_data = iwl_read_prph(fwrt->trans, (i % 2) ? + prph_data = iwl_read_prph_no_grab(fwrt->trans, (i % 2) ? DBGI_SRAM_TARGET_ACCESS_RDATA_MSB : DBGI_SRAM_TARGET_ACCESS_RDATA_LSB); if (prph_data == 0x5a5a5a5a) {