From 72c43f7d6562cec138536e7e6d0939692ff74482 Mon Sep 17 00:00:00 2001
From: Rotem Saado <rotem.saado@intel.com>
Date: Sun, 17 Oct 2021 16:59:53 +0300
Subject: [PATCH] iwlwifi: dbg: treat non active regions as unsupported regions
Git-commit: 72c43f7d6562cec138536e7e6d0939692ff74482
Patch-mainline: v5.16-rc1
References: bsc#1202131

If a region is not active, it means that it was not defined as a region
TLV in the FW image.  We should treat them as unsupported in that case.

This saves operational driver memory and run time when collecting debug
data by skipping unsupported regions.

Signed-off-by: Rotem Saado <rotem.saado@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211017165728.8025bd29d86a.I3ecb4e273bf714e426d82217e0590264cb763419@changeid
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
index 75d5ed0c3204..f487cc8b9fe0 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
@@ -1179,8 +1179,10 @@ static void iwl_dbg_tlv_init_cfg(struct iwl_fw_runtime *fwrt)
 			&fwrt->trans->dbg.active_regions[i];
 		u32 reg_type;
 
-		if (!*active_reg)
+		if (!*active_reg) {
+			fwrt->trans->dbg.unsupported_region_msk |= BIT(i);
 			continue;
+		}
 
 		reg = (void *)(*active_reg)->data;
 		reg_type = le32_to_cpu(reg->type);
-- 
2.35.3