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ath10k: silence firmware file probing warnings 

Firmware files are versioned to prevent older
driver instances to load unsupported firmware
blobs. This is reflected with a fallback logic
which attempts to load several firmware files.

This however produced a lot of unnecessary
warnings sometimes confusing users and leading
them to rename firmware files making things even
more confusing.

Hence use request_firmware_direct() which does not
produce extra warnings. This shouldn't really
break anything because most modern systems don't
rely on udev/hotplug helpers to load firmware
files anymore. For example it was confirmed that
LEDE does not user helper.

This also fixes a 60 second delay per _each_
unexistent firmware/calibration file with distros
which have CONFIG_FW_LOADER_USER_HELPER_FALLBACK
enabled, RHEL being a notable example. Using
ath10k with firmware-2.bin this might end up
into a five minute delay in boot.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
[kvalo@qca.qualcomm.com: add more info to the commit log]
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Michal Kazior 2017-02-13 12:38:42 +02:00 committed by Kalle Valo
parent 310c01afae
commit 9f5bcfe933
2 changed files with 9 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/net/wireless/ath/ath10k/core.c
View File

@ -456,7 +456,10 @@ static const struct firmware *ath10k_fetch_fw_file(struct ath10k *ar,
dir = ".";
snprintf(filename, sizeof(filename), "%s/%s", dir, file);
ret = request_firmware(&fw, filename, ar->dev);
ret = request_firmware_direct(&fw, filename, ar->dev);
ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot fw request '%s': %d\n",
filename, ret);
if (ret)
return ERR_PTR(ret);
@ -1190,12 +1193,8 @@ int ath10k_core_fetch_firmware_api_n(struct ath10k *ar, const char *name,
/* first fetch the firmware file (firmware-*.bin) */
fw_file->firmware = ath10k_fetch_fw_file(ar, ar->hw_params.fw.dir,
name);
if (IS_ERR(fw_file->firmware)) {
ath10k_err(ar, "could not fetch firmware file '%s/%s': %ld\n",
ar->hw_params.fw.dir, name,
PTR_ERR(fw_file->firmware));
if (IS_ERR(fw_file->firmware))
return PTR_ERR(fw_file->firmware);
}
data = fw_file->firmware->data;
len = fw_file->firmware->size;

5
drivers/net/wireless/ath/ath10k/testmode.c
View File

@ -150,7 +150,10 @@ static int ath10k_tm_fetch_utf_firmware_api_1(struct ath10k *ar,
ar->hw_params.fw.dir, ATH10K_FW_UTF_FILE);
/* load utf firmware image */
ret = request_firmware(&fw_file->firmware, filename, ar->dev);
ret = request_firmware_direct(&fw_file->firmware, filename, ar->dev);
ath10k_dbg(ar, ATH10K_DBG_TESTMODE, "testmode fw request '%s': %d\n",
filename, ret);
if (ret) {
ath10k_warn(ar, "failed to retrieve utf firmware '%s': %d\n",
filename, ret);