Linux wireless drivers development
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From: Luca Coelho <luca@coelho.fi>
To: kvalo@codeaurora.org
Cc: linux-wireless@vger.kernel.org,
	Shahar S Matityahu <shahar.s.matityahu@intel.com>,
	Luca Coelho <luciano.coelho@intel.com>
Subject: [PATCH 15/16] iwlwifi: avoid allocating memory for region with disabled domain
Date: Tue, 23 Apr 2019 12:10:42 +0300	[thread overview]
Message-ID: <20190423091043.7156-16-luca@coelho.fi> (raw)
In-Reply-To: <20190423091043.7156-1-luca@coelho.fi>

From: Shahar S Matityahu <shahar.s.matityahu@intel.com>

In iwl_fw_ini_get_trigger_len the driver allocates space for memory
regions regardless of their domain and in iwl_fw_ini_dump_trigger the
driver aborts trigger collection of disabled domain. This diff causes
unneeded memory allocation and traling zeros in the dump file.

Solve this behavior by enforcing domain checking in
iwl_fw_ini_get_trigger_len

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/fw/dbg.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
index 4ef447480aaf..62fd346ccb77 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
@@ -1751,6 +1751,10 @@ static int iwl_fw_ini_get_trigger_len(struct iwl_fw_runtime *fwrt,
 			continue;
 		}
 
+		/* currently the driver supports always on domain only */
+		if (le32_to_cpu(reg->domain) != IWL_FW_INI_DBG_DOMAIN_ALWAYS_ON)
+			continue;
+
 		switch (le32_to_cpu(reg->region_type)) {
 		case IWL_FW_INI_REGION_DEVICE_MEMORY:
 		case IWL_FW_INI_REGION_PERIPHERY_MAC:
-- 
2.20.1


  parent reply	other threads:[~2019-04-23  9:11 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-23  9:10 [PATCH 00/16] iwlwifi: updates intended for v5.2 2019-04-23 (new try) Luca Coelho
2019-04-23  9:10 ` [PATCH 01/16] iwlwifi: Use correct channel_profile iniwl_get_nvm Luca Coelho
2019-04-23  9:10 ` [PATCH 02/16] iwlwifi: pcie: initialize debug_rfkill to -1 Luca Coelho
2019-04-23  9:10 ` [PATCH 03/16] iwlwifi: pcie: don't crash on invalid RX interrupt Luca Coelho
2019-04-23  9:10 ` [PATCH 04/16] iwlwifi: mvm: support v2 of the WoWLAN patterns command Luca Coelho
2019-04-23  9:10 ` [PATCH 05/16] iwlwifi: mvm: report FTM start time TSF when applicable Luca Coelho
2019-04-23  9:10 ` [PATCH 06/16] iwlwifi: support fseq tlv and print fseq version Luca Coelho
2019-04-23  9:10 ` [PATCH 07/16] iwlwifi: mvm: limit TLC according to our HE capabilities Luca Coelho
2019-04-23  9:10 ` [PATCH 08/16] iwlwifi: bump FW API to 48 for 22000 series Luca Coelho
2019-04-23  9:10 ` [PATCH 09/16] iwlwifi: mvm: Don't sleep in RX path Luca Coelho
2019-04-23  9:10 ` [PATCH 10/16] iwlwifi: pcie: remove stray character in iwl_pcie_rx_alloc_page() Luca Coelho
2019-04-23  9:10 ` [PATCH 11/16] iwlwifi: parse command version TLV Luca Coelho
2019-04-23  9:10 ` [PATCH 12/16] iwlwifi: dbg_ini: add lmac and umac error tables dumping support Luca Coelho
2019-04-23  9:10 ` [PATCH 13/16] iwlwifi: dbg_ini: add periodic trigger support Luca Coelho
2019-04-23  9:10 ` [PATCH 14/16] iwlwifi: dbg: replace dump info device family with HW type Luca Coelho
2019-04-23  9:10 ` Luca Coelho [this message]
2019-04-23  9:10 ` [PATCH 16/16] iwlwifi: dbg_ini: check for valid region type during regions parsing Luca Coelho

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