linux-kernel - [PATCH] fix iwlwifi on old cards in v4.19 was Re: 4.19-rc[23] iwlwifi: BUG in swiotlb

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Date:   Sun, 16 Sep 2018 11:59:36 +0200
From:   Pavel Machek <pavel@....cz>
To:     Johannes Berg <johannes@...solutions.net>
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-wireless <linux-wireless@...r.kernel.org>,
        linuxwifi@...el.com
Subject: [PATCH] fix iwlwifi on old cards in v4.19 was Re: 4.19-rc[23]
 iwlwifi: BUG in swiotlb


.max_tfd_queue_size was ommited for old cards, leading to oops in
swiotlb.

Signed-off-by: Pavel Machek <pavel@....cz>

--- linux/drivers/net/wireless/intel/iwlwifi/cfg/1000.c	2018-09-05 13:12:40.453164067 +0200
+++ linux-64/drivers/net/wireless/intel/iwlwifi/cfg/1000.c	2018-09-16 11:54:04.010970756 +0200
@@ -51,6 +51,7 @@
 
 static const struct iwl_base_params iwl1000_base_params = {
 	.num_of_queues = IWLAGN_NUM_QUEUES,
+	.max_tfd_queue_size = 256,
 	.eeprom_size = OTP_LOW_IMAGE_SIZE,
 	.pll_cfg = true,
 	.max_ll_items = OTP_MAX_LL_ITEMS_1000,


-- 
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