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Date: Sat, 4 Dec 2021 11:34:05 +0800 From: kernel test robot <lkp@...el.com> To: Eric Dumazet <eric.dumazet@...il.com>, "David S . Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org> Cc: kbuild-all@...ts.01.org, netdev <netdev@...r.kernel.org>, Eric Dumazet <edumazet@...gle.com>, Vladimir Oltean <vladimir.oltean@....com>, David Laight <David.Laight@...LAB.COM>, David Lebrun <dlebrun@...gle.com> Subject: Re: [PATCH net-next] net: fix recent csum changes Hi Eric, I love your patch! Perhaps something to improve: [auto build test WARNING on net-next/master] url: https://github.com/0day-ci/linux/commits/Eric-Dumazet/net-fix-recent-csum-changes/20211204-025401 base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 43332cf97425a3e5508c827c82201ecc5ddd54e0 config: parisc-randconfig-s031-20211203 (https://download.01.org/0day-ci/archive/20211204/202112041104.gPgP3Z6U-lkp@intel.com/config) compiler: hppa64-linux-gcc (GCC) 11.2.0 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: v0.6.4-dirty # https://github.com/0day-ci/linux/commit/c13fbd113358fb59f76f76d25a1fdb57379c4b9c git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Eric-Dumazet/net-fix-recent-csum-changes/20211204-025401 git checkout c13fbd113358fb59f76f76d25a1fdb57379c4b9c # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=parisc SHELL=/bin/bash net/core/ net/ipv4/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@...el.com> sparse warnings: (new ones prefixed by >>) net/core/skbuff.c: note: in included file (through include/net/net_namespace.h, include/linux/inet.h): >> include/linux/skbuff.h:3489:55: sparse: sparse: restricted __wsum degrades to integer >> include/linux/skbuff.h:3489:55: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] @@ got unsigned int @@ include/linux/skbuff.h:3489:55: sparse: expected restricted __wsum [usertype] include/linux/skbuff.h:3489:55: sparse: got unsigned int include/linux/skbuff.h:3489:29: sparse: sparse: restricted __wsum degrades to integer >> include/linux/skbuff.h:3489:27: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@ include/linux/skbuff.h:3489:27: sparse: expected restricted __wsum [usertype] csum include/linux/skbuff.h:3489:27: sparse: got unsigned int >> include/linux/skbuff.h:3489:55: sparse: sparse: restricted __wsum degrades to integer >> include/linux/skbuff.h:3489:55: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] @@ got unsigned int @@ include/linux/skbuff.h:3489:55: sparse: expected restricted __wsum [usertype] include/linux/skbuff.h:3489:55: sparse: got unsigned int include/linux/skbuff.h:3489:29: sparse: sparse: restricted __wsum degrades to integer >> include/linux/skbuff.h:3489:27: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@ include/linux/skbuff.h:3489:27: sparse: expected restricted __wsum [usertype] csum include/linux/skbuff.h:3489:27: sparse: got unsigned int >> include/linux/skbuff.h:3489:55: sparse: sparse: restricted __wsum degrades to integer >> include/linux/skbuff.h:3489:55: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] @@ got unsigned int @@ include/linux/skbuff.h:3489:55: sparse: expected restricted __wsum [usertype] include/linux/skbuff.h:3489:55: sparse: got unsigned int include/linux/skbuff.h:3489:29: sparse: sparse: restricted __wsum degrades to integer >> include/linux/skbuff.h:3489:27: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@ include/linux/skbuff.h:3489:27: sparse: expected restricted __wsum [usertype] csum include/linux/skbuff.h:3489:27: sparse: got unsigned int -- net/core/filter.c:1411:39: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sock_filter const *filter @@ got struct sock_filter [noderef] __user *filter @@ net/core/filter.c:1411:39: sparse: expected struct sock_filter const *filter net/core/filter.c:1411:39: sparse: got struct sock_filter [noderef] __user *filter net/core/filter.c:1489:39: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sock_filter const *filter @@ got struct sock_filter [noderef] __user *filter @@ net/core/filter.c:1489:39: sparse: expected struct sock_filter const *filter net/core/filter.c:1489:39: sparse: got struct sock_filter [noderef] __user *filter net/core/filter.c:2296:45: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected restricted __be32 [usertype] daddr @@ got unsigned int [usertype] ipv4_nh @@ net/core/filter.c:2296:45: sparse: expected restricted __be32 [usertype] daddr net/core/filter.c:2296:45: sparse: got unsigned int [usertype] ipv4_nh net/core/filter.c:10023:31: sparse: sparse: symbol 'cg_skb_verifier_ops' was not declared. Should it be static? net/core/filter.c:10029:27: sparse: sparse: symbol 'cg_skb_prog_ops' was not declared. Should it be static? net/core/filter.c:10074:31: sparse: sparse: symbol 'cg_sock_verifier_ops' was not declared. Should it be static? net/core/filter.c:10080:27: sparse: sparse: symbol 'cg_sock_prog_ops' was not declared. Should it be static? net/core/filter.c:10083:31: sparse: sparse: symbol 'cg_sock_addr_verifier_ops' was not declared. Should it be static? net/core/filter.c:10089:27: sparse: sparse: symbol 'cg_sock_addr_prog_ops' was not declared. Should it be static? net/core/filter.c:246:32: sparse: sparse: cast to restricted __be16 net/core/filter.c:273:32: sparse: sparse: cast to restricted __be32 net/core/filter.c:1910:43: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected restricted __wsum [usertype] diff @@ got unsigned long long [usertype] to @@ net/core/filter.c:1910:43: sparse: expected restricted __wsum [usertype] diff net/core/filter.c:1910:43: sparse: got unsigned long long [usertype] to net/core/filter.c:1913:36: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected restricted __be16 [usertype] old @@ got unsigned long long [usertype] from @@ net/core/filter.c:1913:36: sparse: expected restricted __be16 [usertype] old net/core/filter.c:1913:36: sparse: got unsigned long long [usertype] from net/core/filter.c:1913:42: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __be16 [usertype] new @@ got unsigned long long [usertype] to @@ net/core/filter.c:1913:42: sparse: expected restricted __be16 [usertype] new net/core/filter.c:1913:42: sparse: got unsigned long long [usertype] to net/core/filter.c:1916:36: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected restricted __be32 [usertype] from @@ got unsigned long long [usertype] from @@ net/core/filter.c:1916:36: sparse: expected restricted __be32 [usertype] from net/core/filter.c:1916:36: sparse: got unsigned long long [usertype] from net/core/filter.c:1916:42: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __be32 [usertype] to @@ got unsigned long long [usertype] to @@ net/core/filter.c:1916:42: sparse: expected restricted __be32 [usertype] to net/core/filter.c:1916:42: sparse: got unsigned long long [usertype] to net/core/filter.c:1961:59: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] diff @@ got unsigned long long [usertype] to @@ net/core/filter.c:1961:59: sparse: expected restricted __wsum [usertype] diff net/core/filter.c:1961:59: sparse: got unsigned long long [usertype] to net/core/filter.c:1964:52: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __be16 [usertype] from @@ got unsigned long long [usertype] from @@ net/core/filter.c:1964:52: sparse: expected restricted __be16 [usertype] from net/core/filter.c:1964:52: sparse: got unsigned long long [usertype] from net/core/filter.c:1964:58: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected restricted __be16 [usertype] to @@ got unsigned long long [usertype] to @@ net/core/filter.c:1964:58: sparse: expected restricted __be16 [usertype] to net/core/filter.c:1964:58: sparse: got unsigned long long [usertype] to net/core/filter.c:1967:52: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __be32 [usertype] from @@ got unsigned long long [usertype] from @@ net/core/filter.c:1967:52: sparse: expected restricted __be32 [usertype] from net/core/filter.c:1967:52: sparse: got unsigned long long [usertype] from net/core/filter.c:1967:58: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected restricted __be32 [usertype] to @@ got unsigned long long [usertype] to @@ net/core/filter.c:1967:58: sparse: expected restricted __be32 [usertype] to net/core/filter.c:1967:58: sparse: got unsigned long long [usertype] to net/core/filter.c:2013:28: sparse: sparse: incorrect type in return expression (different base types) @@ expected unsigned long long @@ got restricted __wsum @@ net/core/filter.c:2013:28: sparse: expected unsigned long long net/core/filter.c:2013:28: sparse: got restricted __wsum net/core/filter.c:2035:35: sparse: sparse: incorrect type in return expression (different base types) @@ expected unsigned long long @@ got restricted __wsum [usertype] csum @@ net/core/filter.c:2035:35: sparse: expected unsigned long long net/core/filter.c:2035:35: sparse: got restricted __wsum [usertype] csum net/core/filter.c:5333:17: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] spi @@ got restricted __be32 const [usertype] spi @@ net/core/filter.c:5333:17: sparse: expected unsigned int [usertype] spi net/core/filter.c:5333:17: sparse: got restricted __be32 const [usertype] spi net/core/filter.c:5341:33: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] remote_ipv4 @@ got restricted __be32 const [usertype] a4 @@ net/core/filter.c:5341:33: sparse: expected unsigned int [usertype] remote_ipv4 net/core/filter.c:5341:33: sparse: got restricted __be32 const [usertype] a4 net/core/filter.c: note: in included file (through include/linux/netlink.h, include/linux/sock_diag.h): >> include/linux/skbuff.h:3489:55: sparse: sparse: restricted __wsum degrades to integer >> include/linux/skbuff.h:3489:55: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] @@ got unsigned int @@ include/linux/skbuff.h:3489:55: sparse: expected restricted __wsum [usertype] include/linux/skbuff.h:3489:55: sparse: got unsigned int include/linux/skbuff.h:3489:29: sparse: sparse: restricted __wsum degrades to integer >> include/linux/skbuff.h:3489:27: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@ include/linux/skbuff.h:3489:27: sparse: expected restricted __wsum [usertype] csum include/linux/skbuff.h:3489:27: sparse: got unsigned int net/core/filter.c: note: in included file (through include/net/ip.h): include/net/route.h:372:48: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected unsigned int [usertype] key @@ got restricted __be32 [usertype] daddr @@ include/net/route.h:372:48: sparse: expected unsigned int [usertype] key include/net/route.h:372:48: sparse: got restricted __be32 [usertype] daddr include/net/route.h:372:48: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected unsigned int [usertype] key @@ got restricted __be32 [usertype] daddr @@ include/net/route.h:372:48: sparse: expected unsigned int [usertype] key include/net/route.h:372:48: sparse: got restricted __be32 [usertype] daddr include/net/route.h:372:48: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected unsigned int [usertype] key @@ got restricted __be32 [usertype] daddr @@ include/net/route.h:372:48: sparse: expected unsigned int [usertype] key include/net/route.h:372:48: sparse: got restricted __be32 [usertype] daddr net/core/filter.c: note: in included file (through include/linux/netlink.h, include/linux/sock_diag.h): >> include/linux/skbuff.h:3489:55: sparse: sparse: restricted __wsum degrades to integer >> include/linux/skbuff.h:3489:55: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] @@ got unsigned int @@ include/linux/skbuff.h:3489:55: sparse: expected restricted __wsum [usertype] include/linux/skbuff.h:3489:55: sparse: got unsigned int include/linux/skbuff.h:3489:29: sparse: sparse: restricted __wsum degrades to integer >> include/linux/skbuff.h:3489:27: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@ include/linux/skbuff.h:3489:27: sparse: expected restricted __wsum [usertype] csum include/linux/skbuff.h:3489:27: sparse: got unsigned int -- net/core/dev.c:3207:23: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@ net/core/dev.c:3207:23: sparse: expected restricted __wsum [usertype] csum net/core/dev.c:3207:23: sparse: got unsigned int net/core/dev.c:3207:23: sparse: sparse: cast from restricted __wsum net/core/dev.c:3207:23: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@ net/core/dev.c:3207:23: sparse: expected restricted __wsum [usertype] csum net/core/dev.c:3207:23: sparse: got unsigned int net/core/dev.c:3207:23: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] val @@ got restricted __wsum @@ net/core/dev.c:3207:23: sparse: expected unsigned int [usertype] val net/core/dev.c:3207:23: sparse: got restricted __wsum net/core/dev.c:3207:23: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@ net/core/dev.c:3207:23: sparse: expected restricted __wsum [usertype] csum net/core/dev.c:3207:23: sparse: got unsigned int net/core/dev.c:3207:23: sparse: sparse: cast from restricted __wsum net/core/dev.c:3207:23: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@ net/core/dev.c:3207:23: sparse: expected restricted __wsum [usertype] csum net/core/dev.c:3207:23: sparse: got unsigned int net/core/dev.c:3207:23: sparse: sparse: cast from restricted __wsum net/core/dev.c:3207:23: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@ net/core/dev.c:3207:23: sparse: expected restricted __wsum [usertype] csum net/core/dev.c:3207:23: sparse: got unsigned int net/core/dev.c:3207:23: sparse: sparse: cast from restricted __wsum net/core/dev.c:3207:23: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@ net/core/dev.c:3207:23: sparse: expected restricted __wsum [usertype] csum net/core/dev.c:3207:23: sparse: got unsigned int net/core/dev.c:3207:23: sparse: sparse: cast from restricted __wsum net/core/dev.c: note: in included file (through include/linux/if_ether.h): >> include/linux/skbuff.h:3489:55: sparse: sparse: restricted __wsum degrades to integer >> include/linux/skbuff.h:3489:55: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] @@ got unsigned int @@ include/linux/skbuff.h:3489:55: sparse: expected restricted __wsum [usertype] include/linux/skbuff.h:3489:55: sparse: got unsigned int include/linux/skbuff.h:3489:29: sparse: sparse: restricted __wsum degrades to integer >> include/linux/skbuff.h:3489:27: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@ include/linux/skbuff.h:3489:27: sparse: expected restricted __wsum [usertype] csum include/linux/skbuff.h:3489:27: sparse: got unsigned int net/core/dev.c:3712:17: sparse: sparse: context imbalance in '__dev_queue_xmit' - different lock contexts for basic block net/core/dev.c:4918:17: sparse: sparse: context imbalance in 'net_tx_action' - different lock contexts for basic block -- net/ipv4/udp_offload.c:139:60: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected restricted __wsum [usertype] res @@ got fouled restricted __sum16 @@ net/ipv4/udp_offload.c:139:60: sparse: expected restricted __wsum [usertype] res net/ipv4/udp_offload.c:139:60: sparse: got fouled restricted __sum16 net/ipv4/udp_offload.c:330:49: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected restricted __wsum [usertype] res @@ got fouled restricted __sum16 @@ net/ipv4/udp_offload.c:330:49: sparse: expected restricted __wsum [usertype] res net/ipv4/udp_offload.c:330:49: sparse: got fouled restricted __sum16 net/ipv4/udp_offload.c:332:60: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected restricted __wsum [usertype] res @@ got fouled restricted __sum16 @@ net/ipv4/udp_offload.c:332:60: sparse: expected restricted __wsum [usertype] res net/ipv4/udp_offload.c:332:60: sparse: got fouled restricted __sum16 net/ipv4/udp_offload.c:348:41: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected restricted __wsum [usertype] res @@ got fouled restricted __sum16 @@ net/ipv4/udp_offload.c:348:41: sparse: expected restricted __wsum [usertype] res net/ipv4/udp_offload.c:348:41: sparse: got fouled restricted __sum16 net/ipv4/udp_offload.c:350:52: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected restricted __wsum [usertype] res @@ got fouled restricted __sum16 @@ net/ipv4/udp_offload.c:350:52: sparse: expected restricted __wsum [usertype] res net/ipv4/udp_offload.c:350:52: sparse: got fouled restricted __sum16 net/ipv4/udp_offload.c: note: in included file: >> include/net/gro.h:177:56: sparse: sparse: restricted __wsum degrades to integer >> include/net/gro.h:177:56: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] @@ got unsigned int @@ include/net/gro.h:177:56: sparse: expected restricted __wsum [usertype] include/net/gro.h:177:56: sparse: got unsigned int include/net/gro.h:176:42: sparse: sparse: restricted __wsum degrades to integer >> include/net/gro.h:176:40: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@ include/net/gro.h:176:40: sparse: expected restricted __wsum [usertype] csum include/net/gro.h:176:40: sparse: got unsigned int >> include/net/gro.h:177:56: sparse: sparse: restricted __wsum degrades to integer >> include/net/gro.h:177:56: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] @@ got unsigned int @@ include/net/gro.h:177:56: sparse: expected restricted __wsum [usertype] include/net/gro.h:177:56: sparse: got unsigned int include/net/gro.h:176:42: sparse: sparse: restricted __wsum degrades to integer >> include/net/gro.h:176:40: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@ include/net/gro.h:176:40: sparse: expected restricted __wsum [usertype] csum include/net/gro.h:176:40: sparse: got unsigned int -- net/ipv4/gre_offload.c: note: in included file: >> include/net/gro.h:177:56: sparse: sparse: restricted __wsum degrades to integer >> include/net/gro.h:177:56: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] @@ got unsigned int @@ include/net/gro.h:177:56: sparse: expected restricted __wsum [usertype] include/net/gro.h:177:56: sparse: got unsigned int include/net/gro.h:176:42: sparse: sparse: restricted __wsum degrades to integer >> include/net/gro.h:176:40: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@ include/net/gro.h:176:40: sparse: expected restricted __wsum [usertype] csum include/net/gro.h:176:40: sparse: got unsigned int -- net/ipv4/fou.c: note: in included file: >> include/linux/skbuff.h:3489:55: sparse: sparse: restricted __wsum degrades to integer >> include/linux/skbuff.h:3489:55: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] @@ got unsigned int @@ include/linux/skbuff.h:3489:55: sparse: expected restricted __wsum [usertype] include/linux/skbuff.h:3489:55: sparse: got unsigned int include/linux/skbuff.h:3489:29: sparse: sparse: restricted __wsum degrades to integer >> include/linux/skbuff.h:3489:27: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@ include/linux/skbuff.h:3489:27: sparse: expected restricted __wsum [usertype] csum include/linux/skbuff.h:3489:27: sparse: got unsigned int >> include/linux/skbuff.h:3489:55: sparse: sparse: restricted __wsum degrades to integer >> include/linux/skbuff.h:3489:55: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] @@ got unsigned int @@ include/linux/skbuff.h:3489:55: sparse: expected restricted __wsum [usertype] include/linux/skbuff.h:3489:55: sparse: got unsigned int include/linux/skbuff.h:3489:29: sparse: sparse: restricted __wsum degrades to integer >> include/linux/skbuff.h:3489:27: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@ include/linux/skbuff.h:3489:27: sparse: expected restricted __wsum [usertype] csum include/linux/skbuff.h:3489:27: sparse: got unsigned int >> include/linux/skbuff.h:3489:55: sparse: sparse: restricted __wsum degrades to integer >> include/linux/skbuff.h:3489:55: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] @@ got unsigned int @@ include/linux/skbuff.h:3489:55: sparse: expected restricted __wsum [usertype] include/linux/skbuff.h:3489:55: sparse: got unsigned int include/linux/skbuff.h:3489:29: sparse: sparse: restricted __wsum degrades to integer >> include/linux/skbuff.h:3489:27: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@ include/linux/skbuff.h:3489:27: sparse: expected restricted __wsum [usertype] csum include/linux/skbuff.h:3489:27: sparse: got unsigned int net/ipv4/fou.c: note: in included file: >> include/net/gro.h:177:56: sparse: sparse: restricted __wsum degrades to integer >> include/net/gro.h:177:56: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] @@ got unsigned int @@ include/net/gro.h:177:56: sparse: expected restricted __wsum [usertype] include/net/gro.h:177:56: sparse: got unsigned int include/net/gro.h:176:42: sparse: sparse: restricted __wsum degrades to integer >> include/net/gro.h:176:40: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@ include/net/gro.h:176:40: sparse: expected restricted __wsum [usertype] csum include/net/gro.h:176:40: sparse: got unsigned int -- net/ipv4/ip_tunnel.c: note: in included file: >> include/linux/skbuff.h:3489:55: sparse: sparse: restricted __wsum degrades to integer >> include/linux/skbuff.h:3489:55: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] @@ got unsigned int @@ include/linux/skbuff.h:3489:55: sparse: expected restricted __wsum [usertype] include/linux/skbuff.h:3489:55: sparse: got unsigned int include/linux/skbuff.h:3489:29: sparse: sparse: restricted __wsum degrades to integer >> include/linux/skbuff.h:3489:27: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __wsum [usertype] csum @@ got unsigned int @@ include/linux/skbuff.h:3489:27: sparse: expected restricted __wsum [usertype] csum include/linux/skbuff.h:3489:27: sparse: got unsigned int vim +3489 include/linux/skbuff.h 3474 3475 /** 3476 * skb_postpull_rcsum - update checksum for received skb after pull 3477 * @skb: buffer to update 3478 * @start: start of data before pull 3479 * @len: length of data pulled 3480 * 3481 * After doing a pull on a received packet, you need to call this to 3482 * update the CHECKSUM_COMPLETE checksum, or set ip_summed to 3483 * CHECKSUM_NONE so that it can be recomputed from scratch. 3484 */ 3485 static inline void skb_postpull_rcsum(struct sk_buff *skb, 3486 const void *start, unsigned int len) 3487 { 3488 if (skb->ip_summed == CHECKSUM_COMPLETE) > 3489 skb->csum = -csum_partial(start, len, -skb->csum); 3490 else if (skb->ip_summed == CHECKSUM_PARTIAL && 3491 skb_checksum_start_offset(skb) < 0) 3492 skb->ip_summed = CHECKSUM_NONE; 3493 } 3494 --- 0-DAY CI Kernel Test Service, Intel 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