On 3/5/21 12:22 AM, kernel test robot wrote:
> Hi Alex,
>
> I love your patch! Perhaps something to improve:
>
> [auto build test WARNING on net-next/master]
Well that's embarrassing. It explains why I had to make
a change or two after testing though.
I will fix this so the bit fields are defined in host
byte order, and will fix the encoding calls to use
u32_encode_bits() instead of be32_encode_bits().
I will redo my testing (for all of the patches) and
will then submit version 2 of the series.
-Alex
>
> url:
> https://github.com/0day-ci/linux/commits/Alex-Elder/net-qualcomm-rmnet-stop-using-C-bit-fields/20210305-064128
> base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git
> d310ec03a34e92a77302edb804f7d68ee4f01ba0
> config: riscv-randconfig-s031-20210305 (attached as .config)
> compiler: riscv64-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: v0.6.3-245-gacc5c298-dirty
> #
> https://github.com/0day-ci/linux/commit/dba638b67dff001926855ed81e35e52bd54880ea
> git remote add linux-review https://github.com/0day-ci/linux
> git fetch --no-tags linux-review
> Alex-Elder/net-qualcomm-rmnet-stop-using-C-bit-fields/20210305-064128
> git checkout dba638b67dff001926855ed81e35e52bd54880ea
> # 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=riscv
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <[email protected]>
>
>
> "sparse warnings: (new ones prefixed by >>)"
>>> drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c:208:13: sparse:
>>> sparse: incorrect type in assignment (different base types) @@ expected
>>> unsigned short [usertype] val @@ got restricted __be16 @@
> drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c:208:13: sparse:
> expected unsigned short [usertype] val
> drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c:208:13: sparse:
> got restricted __be16
>>> drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c:210:21: sparse:
>>> sparse: invalid assignment: |=
>>> drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c:210:21: sparse:
>>> left side has type unsigned short
>>> drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c:210:21: sparse:
>>> right side has type restricted __be16
> drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c:211:13: sparse:
> sparse: invalid assignment: |=
> drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c:211:13: sparse:
> left side has type unsigned short
> drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c:211:13: sparse:
> right side has type restricted __be16
> drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c:247:13: sparse:
> sparse: incorrect type in assignment (different base types) @@ expected
> unsigned short [usertype] val @@ got restricted __be16 @@
> drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c:247:13: sparse:
> expected unsigned short [usertype] val
> drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c:247:13: sparse:
> got restricted __be16
> drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c:249:21: sparse:
> sparse: invalid assignment: |=
> drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c:249:21: sparse:
> left side has type unsigned short
> drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c:249:21: sparse:
> right side has type restricted __be16
> drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c:250:13: sparse:
> sparse: invalid assignment: |=
> drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c:250:13: sparse:
> left side has type unsigned short
> drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c:250:13: sparse:
> right side has type restricted __be16
>
> vim +208 drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c
>
> 195
> 196 static void
> 197 rmnet_map_ipv4_ul_csum_header(void *iphdr,
> 198 struct rmnet_map_ul_csum_header
> *ul_header,
> 199 struct sk_buff *skb)
> 200 {
> 201 struct iphdr *ip4h = iphdr;
> 202 u16 offset;
> 203 u16 val;
> 204
> 205 offset = skb_transport_header(skb) - (unsigned char
> *)iphdr;
> 206 ul_header->csum_start_offset = htons(offset);
> 207
> > 208 val = be16_encode_bits(1, MAP_CSUM_UL_ENABLED_FMASK);
> 209 if (ip4h->protocol == IPPROTO_UDP)
> > 210 val |= be16_encode_bits(1,
> MAP_CSUM_UL_UDP_FMASK);
> 211 val |= be16_encode_bits(skb->csum_offset,
> MAP_CSUM_UL_OFFSET_FMASK);
> 212
> 213 ul_header->csum_info = htons(val);
> 214
> 215 skb->ip_summed = CHECKSUM_NONE;
> 216
> 217 rmnet_map_complement_ipv4_txporthdr_csum_field(iphdr);
> 218 }
> 219
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/[email protected]
>
