tree: https://github.com/kvalo/ath pending
head: 250e3cead2b0712dde808aa962c089765cfb16e3
commit: 250e3cead2b0712dde808aa962c089765cfb16e3 [98/98] ath10k: Use station's
current operating mode from assoc request
reproduce:
# apt-get install sparse
git checkout 250e3cead2b0712dde808aa962c089765cfb16e3
make ARCH=x86_64 allmodconfig
make C=1 CF=-D__CHECK_ENDIAN__
sparse warnings: (new ones prefixed by >>)
>> drivers/net/wireless/ath/ath10k/mac.c:2172:49: sparse: incompatible types in
>> comparison expression (different type sizes)
In file included from include/asm-generic/bug.h:13:0,
from arch/x86/include/asm/bug.h:35,
from include/linux/bug.h:4,
from include/net/mac80211.h:17,
from drivers/net/wireless/ath/ath10k/mac.h:21,
from drivers/net/wireless/ath/ath10k/mac.c:18:
drivers/net/wireless/ath/ath10k/mac.c: In function 'ath10k_peer_assoc_h_ht':
include/linux/kernel.h:722:17: warning: comparison of distinct pointer types
lacks a cast
(void) (&_min1 == &_min2); \
^
drivers/net/wireless/ath/ath10k/mac.c:2172:35: note: in expansion of macro
'min'
arg->peer_num_spatial_streams = min(sta->rx_nss, max_nss);
^
vim +2172 drivers/net/wireless/ath/ath10k/mac.c
2156
2157 /*
2158 * This is a workaround for HT-enabled STAs which break the spec
2159 * and have no HT capabilities RX mask (no HT RX MCS map).
2160 *
2161 * As per spec, in section 20.3.5 Modulation and coding scheme
(MCS),
2162 * MCS 0 through 7 are mandatory in 20MHz with 800 ns GI at all
STAs.
2163 *
2164 * Firmware asserts if such situation occurs.
2165 */
2166 if (n == 0) {
2167 arg->peer_ht_rates.num_rates = 8;
2168 for (i = 0; i < arg->peer_ht_rates.num_rates; i++)
2169 arg->peer_ht_rates.rates[i] = i;
2170 } else {
2171 arg->peer_ht_rates.num_rates = n;
> 2172 arg->peer_num_spatial_streams = min(sta->rx_nss,
> max_nss);
2173 }
2174
2175 ath10k_dbg(ar, ATH10K_DBG_MAC, "mac ht peer %pM mcs cnt %d nss
%d\n",
2176 arg->addr,
2177 arg->peer_ht_rates.num_rates,
2178 arg->peer_num_spatial_streams);
2179 }
2180
---
0-DAY kernel test infrastructure Open Source Technology Center
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