From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 0306DFC08 for ; Mon, 15 May 2023 17:41:55 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 59FB0C433D2; Mon, 15 May 2023 17:41:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1684172515; bh=oVwvwBkzEwAIScMN0enJ9rk6DUcPwHMmWOBhqSQ1T+8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AzUuYSl+pHZphT9dtBhmYC+DtLjsajAxt/DMJqnDE0zLmotrvRq059szw3wF9Icvn eJ7MSjaa4zajrOgStX7Oth9v6lDnSB0pWwrWLKwt2h38z3AvHD1zxQDYc/mQJIWkSM xfICgIC1ydh2e8dpfvumNOZL4KEfC0YDHqDL9h/U= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Emmanuel Grumbach , Gregory Greenman , Johannes Berg , Sasha Levin , Lorenzo Zolfanelli Subject: [PATCH 5.10 179/381] wifi: iwlwifi: make the loop for card preparation effective Date: Mon, 15 May 2023 18:27:10 +0200 Message-Id: <20230515161744.900441444@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230515161736.775969473@linuxfoundation.org> References: <20230515161736.775969473@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Emmanuel Grumbach [ Upstream commit 28965ec0b5d9112585f725660e2ff13218505ace ] Since we didn't reset t to 0, only the first iteration of the loop did checked the ready bit several times. >>From the second iteration and on, we just tested the bit once and continued to the next iteration. Reported-and-tested-by: Lorenzo Zolfanelli Link: https://bugzilla.kernel.org/show_bug.cgi?id=216452 Fixes: 289e5501c314 ("iwlwifi: fix the preparation of the card") Signed-off-by: Emmanuel Grumbach Signed-off-by: Gregory Greenman Link: https://lore.kernel.org/r/20230416154301.615b683ab9c8.Ic52c3229d3345b0064fa34263293db095d88daf8@changeid Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin --- drivers/net/wireless/intel/iwlwifi/pcie/trans.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c index daec61a60fec5..7f8b7f7697cfd 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c @@ -620,7 +620,6 @@ static int iwl_pcie_set_hw_ready(struct iwl_trans *trans) int iwl_pcie_prepare_card_hw(struct iwl_trans *trans) { int ret; - int t = 0; int iter; IWL_DEBUG_INFO(trans, "iwl_trans_prepare_card_hw enter\n"); @@ -635,6 +634,8 @@ int iwl_pcie_prepare_card_hw(struct iwl_trans *trans) usleep_range(1000, 2000); for (iter = 0; iter < 10; iter++) { + int t = 0; + /* If HW is not ready, prepare the conditions to check again */ iwl_set_bit(trans, CSR_HW_IF_CONFIG_REG, CSR_HW_IF_CONFIG_REG_PREPARE); -- 2.39.2