[kbuild-all] Re: [linux-stable-rc:linux-5.4.y 1315/3868] drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:987:20: sparse: sparse: incorrect type in assignment (different base types)

tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.4.y head: e72abf1f11a982a2a3fb555b5a9bd2eb2011dee8 commit: e307bfda74a9c66426313eca25ccfea877a50036 [1315/3868] ath9k_htc: Discard undersized packets config: sh-randconfig-s032-20201103 (attached as .config) compiler: sh4-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-107-gaf3512a6-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.gi... git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git git fetch --no-tags linux-stable-rc linux-5.4.y git checkout e307bfda74a9c66426313eca25ccfea877a50036 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=sh If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; "sparse warnings: (new ones prefixed by >>)" drivers/net/wireless/ath/ath9k/htc_drv_txrx.c: note: in included file (through arch/sh/include/asm/unistd.h, include/uapi/linux/unistd.h, include/linux/compat.h, ...): ./arch/sh/include/generated/uapi/asm/unistd_32.h:409:37: sparse: sparse: no newline at end of file >> drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:987:20: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __be16 [usertype] rs_datalen @@ got unsigned short [usertype] @@ drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:987:20: sparse: expected restricted __be16 [usertype] rs_datalen >> drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:987:20: sparse: got unsigned short [usertype] drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:988:13: sparse: sparse: restricted __be16 degrades to integer drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:1001:13: sparse: sparse: restricted __be16 degrades to integer