Hi Eric, [auto build test WARNING on net/master]
url: https://github.com/0day-ci/linux/commits/Eric-Dumazet/dccp-tcp-fix-ireq-opt-races/20171021-034024 config: alpha-allmodconfig (attached as .config) compiler: alpha-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=alpha All warnings (new ones prefixed by >>): In file included from arch/alpha/include/asm/atomic.h:6:0, from include/linux/atomic.h:4, from include/linux/rcupdate.h:38, from net/ipv4/cipso_ipv4.c:40: net/ipv4/cipso_ipv4.c: In function 'cipso_v4_req_setattr': net/ipv4/cipso_ipv4.c:1954:22: error: 'struct inet_request_sock' has no member named 'opt' opt = xchg(&req_inet->opt, opt); ^ arch/alpha/include/asm/cmpxchg.h:47:15: note: in definition of macro 'xchg' __typeof__(*(ptr)) _x_ = (x); \ ^~~ >> arch/alpha/include/asm/cmpxchg.h:47:27: warning: initialization makes >> integer from pointer without a cast [-Wint-conversion] __typeof__(*(ptr)) _x_ = (x); \ ^ net/ipv4/cipso_ipv4.c:1954:8: note: in expansion of macro 'xchg' opt = xchg(&req_inet->opt, opt); ^~~~ net/ipv4/cipso_ipv4.c:1954:22: error: 'struct inet_request_sock' has no member named 'opt' opt = xchg(&req_inet->opt, opt); ^ arch/alpha/include/asm/cmpxchg.h:48:16: note: in definition of macro 'xchg' (__typeof__(*(ptr))) __xchg((ptr), (unsigned long)_x_, \ ^~~ net/ipv4/cipso_ipv4.c:1954:22: error: 'struct inet_request_sock' has no member named 'opt' opt = xchg(&req_inet->opt, opt); ^ arch/alpha/include/asm/cmpxchg.h:48:31: note: in definition of macro 'xchg' (__typeof__(*(ptr))) __xchg((ptr), (unsigned long)_x_, \ ^~~ net/ipv4/cipso_ipv4.c:1954:22: error: 'struct inet_request_sock' has no member named 'opt' opt = xchg(&req_inet->opt, opt); ^ arch/alpha/include/asm/cmpxchg.h:49:15: note: in definition of macro 'xchg' sizeof(*(ptr))); \ ^~~ net/ipv4/cipso_ipv4.c: In function 'cipso_v4_req_delattr': net/ipv4/cipso_ipv4.c:2073:16: error: 'struct inet_request_sock' has no member named 'opt' opt = req_inet->opt; ^~ net/ipv4/cipso_ipv4.c:2077:27: error: 'struct inet_request_sock' has no member named 'opt' cipso_v4_delopt(&req_inet->opt); ^~ -- In file included from arch/alpha/include/asm/atomic.h:6:0, from include/linux/atomic.h:4, from include/linux/rcupdate.h:38, from net//ipv4/cipso_ipv4.c:40: net//ipv4/cipso_ipv4.c: In function 'cipso_v4_req_setattr': net//ipv4/cipso_ipv4.c:1954:22: error: 'struct inet_request_sock' has no member named 'opt' opt = xchg(&req_inet->opt, opt); ^ arch/alpha/include/asm/cmpxchg.h:47:15: note: in definition of macro 'xchg' __typeof__(*(ptr)) _x_ = (x); \ ^~~ >> arch/alpha/include/asm/cmpxchg.h:47:27: warning: initialization makes >> integer from pointer without a cast [-Wint-conversion] __typeof__(*(ptr)) _x_ = (x); \ ^ net//ipv4/cipso_ipv4.c:1954:8: note: in expansion of macro 'xchg' opt = xchg(&req_inet->opt, opt); ^~~~ net//ipv4/cipso_ipv4.c:1954:22: error: 'struct inet_request_sock' has no member named 'opt' opt = xchg(&req_inet->opt, opt); ^ arch/alpha/include/asm/cmpxchg.h:48:16: note: in definition of macro 'xchg' (__typeof__(*(ptr))) __xchg((ptr), (unsigned long)_x_, \ ^~~ net//ipv4/cipso_ipv4.c:1954:22: error: 'struct inet_request_sock' has no member named 'opt' opt = xchg(&req_inet->opt, opt); ^ arch/alpha/include/asm/cmpxchg.h:48:31: note: in definition of macro 'xchg' (__typeof__(*(ptr))) __xchg((ptr), (unsigned long)_x_, \ ^~~ net//ipv4/cipso_ipv4.c:1954:22: error: 'struct inet_request_sock' has no member named 'opt' opt = xchg(&req_inet->opt, opt); ^ arch/alpha/include/asm/cmpxchg.h:49:15: note: in definition of macro 'xchg' sizeof(*(ptr))); \ ^~~ net//ipv4/cipso_ipv4.c: In function 'cipso_v4_req_delattr': net//ipv4/cipso_ipv4.c:2073:16: error: 'struct inet_request_sock' has no member named 'opt' opt = req_inet->opt; ^~ net//ipv4/cipso_ipv4.c:2077:27: error: 'struct inet_request_sock' has no member named 'opt' cipso_v4_delopt(&req_inet->opt); ^~ vim +47 arch/alpha/include/asm/cmpxchg.h 5ba840f9 Paul Gortmaker 2012-04-02 44 5ba840f9 Paul Gortmaker 2012-04-02 45 #define xchg(ptr, x) \ 5ba840f9 Paul Gortmaker 2012-04-02 46 ({ \ 5ba840f9 Paul Gortmaker 2012-04-02 @47 __typeof__(*(ptr)) _x_ = (x); \ 5ba840f9 Paul Gortmaker 2012-04-02 48 (__typeof__(*(ptr))) __xchg((ptr), (unsigned long)_x_, \ 5ba840f9 Paul Gortmaker 2012-04-02 49 sizeof(*(ptr))); \ 5ba840f9 Paul Gortmaker 2012-04-02 50 }) 5ba840f9 Paul Gortmaker 2012-04-02 51 :::::: The code at line 47 was first introduced by commit :::::: 5ba840f9da1ff96e0c6e982608a9e80e35333cc5 alpha: fix build failures from system.h dismemberment :::::: TO: Paul Gortmaker <paul.gortma...@windriver.com> :::::: CC: Paul Gortmaker <paul.gortma...@windriver.com> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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