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| author | Arnd Bergmann <arnd@arndb.de> | 2019-07-08 14:50:06 +0200 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2019-07-15 20:50:04 +0300 |
| commit | ff414f31ce3750d259549c3b9eac8e855b5348f0 (patch) | |
| tree | 9d3ea7dda1ea56cb7138192088a2e0d51433d032 | |
| parent | a7d544d63120061f89459585f06ca44d30842a22 (diff) | |
| download | linux-ff414f31ce3750d259549c3b9eac8e855b5348f0.tar.gz linux-ff414f31ce3750d259549c3b9eac8e855b5348f0.tar.bz2 linux-ff414f31ce3750d259549c3b9eac8e855b5348f0.zip | |
ath10k: work around uninitialized vht_pfr variable
As clang points out, the vht_pfr is assigned to a struct member
without being initialized in one case:
drivers/net/wireless/ath/ath10k/mac.c:7528:7: error: variable 'vht_pfr' is used uninitialized whenever 'if' condition
is false [-Werror,-Wsometimes-uninitialized]
if (!ath10k_mac_can_set_bitrate_mask(ar, band, mask,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/wireless/ath/ath10k/mac.c:7551:20: note: uninitialized use occurs here
arvif->vht_pfr = vht_pfr;
^~~~~~~
drivers/net/wireless/ath/ath10k/mac.c:7528:3: note: remove the 'if' if its condition is always true
if (!ath10k_mac_can_set_bitrate_mask(ar, band, mask,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/wireless/ath/ath10k/mac.c:7483:12: note: initialize the variable 'vht_pfr' to silence this warning
u8 vht_pfr;
Add an explicit but probably incorrect initialization here.
I suspect we want a better fix here, but chose this approach to
illustrate the issue.
Fixes: 8b97b055dc9d ("ath10k: fix failure to set multiple fixed rate")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/mac.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c index e43a566eef77..0606416dc971 100644 --- a/drivers/net/wireless/ath/ath10k/mac.c +++ b/drivers/net/wireless/ath/ath10k/mac.c @@ -7541,6 +7541,8 @@ static int ath10k_mac_op_set_bitrate_mask(struct ieee80211_hw *hw, &vht_nss, true); update_bitrate_mask = false; + } else { + vht_pfr = 0; } mutex_lock(&ar->conf_mutex); |