Hi Hannes, [auto build test WARNING on net-next/master]
url: https://github.com/0day-ci/linux/commits/Hannes-Frederic-Sowa/bpf-list-all-loaded-ebpf-programs-in-proc-bpf-programs/20170427-090839 reproduce: # apt-get install sparse make ARCH=x86_64 allmodconfig make C=1 CF=-D__CHECK_ENDIAN__ sparse warnings: (new ones prefixed by >>) include/linux/compiler.h:264:8: sparse: attribute 'no_sanitize_address': unknown attribute lib/test_bpf.c:407:29: sparse: subtraction of functions? Share your drugs lib/test_bpf.c:418:29: sparse: subtraction of functions? Share your drugs >> lib/test_bpf.c:5613:36: sparse: not enough arguments for function >> bpf_prog_alloc lib/test_bpf.c: In function 'generate_filter': lib/test_bpf.c:5613:8: error: too few arguments to function 'bpf_prog_alloc' fp = bpf_prog_alloc(bpf_prog_size(flen), 0); ^~~~~~~~~~~~~~ In file included from lib/test_bpf.c:20:0: include/linux/filter.h:619:18: note: declared here struct bpf_prog *bpf_prog_alloc(unsigned int size, gfp_t gfp_extra_flags, ^~~~~~~~~~~~~~ vim +5613 lib/test_bpf.c 10f18e0ba Daniel Borkmann 2014-05-23 5597 /* Verifier didn't reject the test that's 10f18e0ba Daniel Borkmann 2014-05-23 5598 * bad enough, just return! 10f18e0ba Daniel Borkmann 2014-05-23 5599 */ 10f18e0ba Daniel Borkmann 2014-05-23 5600 *err = -EINVAL; 10f18e0ba Daniel Borkmann 2014-05-23 5601 return NULL; 10f18e0ba Daniel Borkmann 2014-05-23 5602 } 10f18e0ba Daniel Borkmann 2014-05-23 5603 } 10f18e0ba Daniel Borkmann 2014-05-23 5604 /* We don't expect to fail. */ 10f18e0ba Daniel Borkmann 2014-05-23 5605 if (*err) { 10f18e0ba Daniel Borkmann 2014-05-23 5606 pr_cont("FAIL to attach err=%d len=%d\n", 10f18e0ba Daniel Borkmann 2014-05-23 5607 *err, fprog.len); 10f18e0ba Daniel Borkmann 2014-05-23 5608 return NULL; 64a8946b4 Alexei Starovoitov 2014-05-08 5609 } 10f18e0ba Daniel Borkmann 2014-05-23 5610 break; 10f18e0ba Daniel Borkmann 2014-05-23 5611 10f18e0ba Daniel Borkmann 2014-05-23 5612 case INTERNAL: 60a3b2253 Daniel Borkmann 2014-09-02 @5613 fp = bpf_prog_alloc(bpf_prog_size(flen), 0); 10f18e0ba Daniel Borkmann 2014-05-23 5614 if (fp == NULL) { 10f18e0ba Daniel Borkmann 2014-05-23 5615 pr_cont("UNEXPECTED_FAIL no memory left\n"); 10f18e0ba Daniel Borkmann 2014-05-23 5616 *err = -ENOMEM; 10f18e0ba Daniel Borkmann 2014-05-23 5617 return NULL; 10f18e0ba Daniel Borkmann 2014-05-23 5618 } 10f18e0ba Daniel Borkmann 2014-05-23 5619 10f18e0ba Daniel Borkmann 2014-05-23 5620 fp->len = flen; 4962fa10f Daniel Borkmann 2015-07-30 5621 /* Type doesn't really matter here as long as it's not unspec. */ :::::: The code at line 5613 was first introduced by commit :::::: 60a3b2253c413cf601783b070507d7dd6620c954 net: bpf: make eBPF interpreter images read-only :::::: TO: Daniel Borkmann <dbork...@redhat.com> :::::: CC: David S. Miller <da...@davemloft.net> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
