CHROMIUM: ath10k: Initialize buf to avoid garbage

This CL helps to avoid garbage value while writing
to htt_max_amsdu_ampdu debugfs file

BUG=b:166467899
TEST=1)Compiled sys-kernel/gw-kernel-4_14 successfully

2)Verified by below experiment config:
ap-configure --set_experiment_configuration='{"runtime_flags":
{"runtime_flag":[{"name":"amsdu_size", "value":"6"},{"name":
"ampdu_size","value":"55"}]},"features":{"features":{"name":
"ConfigureAmsduAmpduSize","flag":"ENABLED"}}}'

ap-configure --set_experiment_configuration='{"features":
{"features":{"name":"ConfigureAmsduAmpduSize","flag":
"DISABLED/DEFAULT"}}}'

3) cat /sys/kernel/debug/ieee80211/phy1/ath10k/htt_max_amsdu_ampdu

Change-Id: If0e534f26e203d320b29687bc31bc02351fa6acc
Signed-off-by: Dheeraj Kaniyala Melinapanja <dmelinapanja@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/2418134
Reviewed-by: Julan Hsu <julanhsu@google.com>
1 file changed