#include "perf.h" #include "util/util.h" #include "util/debug.h" #include #include "util/parse-branch-options.h" #define BRANCH_OPT(n, m) \ { .name = n, .mode = (m) } #define BRANCH_END { .name = NULL } struct branch_mode { const char *name; int mode; }; static const struct branch_mode branch_modes[] = { BRANCH_OPT("u", PERF_SAMPLE_BRANCH_USER), BRANCH_OPT("k", PERF_SAMPLE_BRANCH_KERNEL), BRANCH_OPT("hv", PERF_SAMPLE_BRANCH_HV), BRANCH_OPT("any", PERF_SAMPLE_BRANCH_ANY), BRANCH_OPT("any_call", PERF_SAMPLE_BRANCH_ANY_CALL), BRANCH_OPT("any_ret", PERF_SAMPLE_BRANCH_ANY_RETURN), BRANCH_OPT("ind_call", PERF_SAMPLE_BRANCH_IND_CALL), BRANCH_OPT("abort_tx", PERF_SAMPLE_BRANCH_ABORT_TX), BRANCH_OPT("in_tx", PERF_SAMPLE_BRANCH_IN_TX), BRANCH_OPT("no_tx", PERF_SAMPLE_BRANCH_NO_TX), BRANCH_OPT("cond", PERF_SAMPLE_BRANCH_COND), BRANCH_OPT("ind_jmp", PERF_SAMPLE_BRANCH_IND_JUMP), BRANCH_OPT("call", PERF_SAMPLE_BRANCH_CALL), BRANCH_END }; int parse_branch_str(const char *str, __u64 *mode) { #define ONLY_PLM \ (PERF_SAMPLE_BRANCH_USER |\ PERF_SAMPLE_BRANCH_KERNEL |\ PERF_SAMPLE_BRANCH_HV) int ret = 0; char *p, *s; char *os = NULL; const struct branch_mode *br; if (str == NULL) { *mode = PERF_SAMPLE_BRANCH_ANY; return 0; } /* because str is read-only */ s = os = strdup(str); if (!s) return -1; for (;;) { p = strchr(s, ','); if (p) *p = '\0'; for (br = branch_modes; br->name; br++) { if (!strcasecmp(s, br->name)) break; } if (!br->name) { ret = -1; pr_warning("unknown branch filter %s," " check man page\n", s); goto error; } *mode |= br->mode; if (!p) break; s = p + 1; } /* default to any branch */ if ((*mode & ~ONLY_PLM) == 0) { *mode = PERF_SAMPLE_BRANCH_ANY; } error: free(os); return ret; } int parse_branch_stack(const struct option *opt, const char *str, int unset) { __u64 *mode = (__u64 *)opt->value; if (unset) return 0; /* * cannot set it twice, -b + --branch-filter for instance */ if (*mode) return -1; return parse_branch_str(str, mode); } log/include/rdma'>
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authorDan Carpenter <dan.carpenter@oracle.com>2017-01-30 10:55:04 +0100
committerDavid S. Miller <davem@davemloft.net>2017-01-30 16:37:55 -0500
commitcdaf25dfc058ee6f7a7b2e2353de00fa288c0cd4 (patch)
treea45096fd9e8aaeea2eac1f1999a3d17dfeb0d02b /include/rdma
parent1930b60352e7e195f55b27cde15d2a8f43342a8b (diff)
smc: some potential use after free bugs
Say we got really unlucky and these failed on the last iteration, then it could lead to a use after free bug. Fixes: cd6851f30386 ("smc: remote memory buffers (RMBs)") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/rdma')