/* For general debugging purposes */ #include "../perf.h" #include #include #include #include #include #include "cache.h" #include "color.h" #include "event.h" #include "debug.h" #include "util.h" #include "target.h" int verbose; bool dump_trace = false, quiet = false; int debug_ordered_events; static int redirect_to_stderr; int debug_data_convert; int veprintf(int level, int var, const char *fmt, va_list args) { int ret = 0; if (var >= level) { if (use_browser >= 1 && !redirect_to_stderr) ui_helpline__vshow(fmt, args); else ret = vfprintf(stderr, fmt, args); } return ret; } int eprintf(int level, int var, const char *fmt, ...) { va_list args; int ret; va_start(args, fmt); ret = veprintf(level, var, fmt, args); va_end(args); return ret; } static int veprintf_time(u64 t, const char *fmt, va_list args) { int ret = 0; u64 secs, usecs, nsecs = t; secs = nsecs / NSEC_PER_SEC; nsecs -= secs * NSEC_PER_SEC; usecs = nsecs / NSEC_PER_USEC; ret = fprintf(stderr, "[%13" PRIu64 ".%06" PRIu64 "] ", secs, usecs); ret += vfprintf(stderr, fmt, args); return ret; } int eprintf_time(int level, int var, u64 t, const char *fmt, ...) { int ret = 0; va_list args; if (var >= level) { va_start(args, fmt); ret = veprintf_time(t, fmt, args); va_end(args); } return ret; } /* * Overloading libtraceevent standard info print * function, display with -v in perf. */ void pr_stat(const char *fmt, ...) { va_list args; va_start(args, fmt); veprintf(1, verbose, fmt, args); va_end(args); eprintf(1, verbose, "\n"); } int dump_printf(const char *fmt, ...) { va_list args; int ret = 0; if (dump_trace) { va_start(args, fmt); ret = vprintf(fmt, args); va_end(args); } return ret; } static void trace_event_printer(enum binary_printer_ops op, unsigned int val, void *extra) { const char *color = PERF_COLOR_BLUE; union perf_event *event = (union perf_event *)extra; unsigned char ch = (unsigned char)val; switch (op) { case BINARY_PRINT_DATA_BEGIN: printf("."); color_fprintf(stdout, color, "\n. ... raw event: size %d bytes\n", event->header.size); break; case BINARY_PRINT_LINE_BEGIN: printf("."); break; case BINARY_PRINT_ADDR: color_fprintf(stdout, color, " %04x: ", val); break; case BINARY_PRINT_NUM_DATA: color_fprintf(stdout, color, " %02x", val); break; case BINARY_PRINT_NUM_PAD: color_fprintf(stdout, color, " "); break; case BINARY_PRINT_SEP: color_fprintf(stdout, color, " "); break; case BINARY_PRINT_CHAR_DATA: color_fprintf(stdout, color, "%c", isprint(ch) ? ch : '.'); break; case BINARY_PRINT_CHAR_PAD: color_fprintf(stdout, color, " "); break; case BINARY_PRINT_LINE_END: color_fprintf(stdout, color, "\n"); break; case BINARY_PRINT_DATA_END: printf("\n"); break; default: break; } } void trace_event(union perf_event *event) { unsigned char *raw_event = (void *)event; if (!dump_trace) return; print_binary(raw_event, event->header.size, 16, trace_event_printer, event); } static struct debug_variable { const char *name; int *ptr; } debug_variables[] = { { .name = "verbose", .ptr = &verbose }, { .name = "ordered-events", .ptr = &debug_ordered_events}, { .name = "stderr", .ptr = &redirect_to_stderr}, { .name = "data-convert", .ptr = &debug_data_convert }, { .name = NULL, } }; int perf_debug_option(const char *str) { struct debug_variable *var = &debug_variables[0]; char *vstr, *s = strdup(str); int v = 1; vstr = strchr(s, '='); if (vstr) *vstr++ = 0; while (var->name) { if (!strcmp(s, var->name)) break; var++; } if (!var->name) { pr_err("Unknown debug variable name '%s'\n", s); free(s); return -1; } if (vstr) { v = atoi(vstr); /* * Allow only values in range (0, 10), * otherwise set 0. */ v = (v < 0) || (v > 10) ? 0 : v; } *var->ptr = v; free(s); return 0; } #define DEBUG_WRAPPER(__n, __l) \ static int pr_ ## __n ## _wrapper(const char *fmt, ...) \ { \ va_list args; \ int ret; \ \ va_start(args, fmt); \ ret = veprintf(__l, verbose, fmt, args); \ va_end(args); \ return ret; \ } DEBUG_WRAPPER(warning, 0); DEBUG_WRAPPER(debug, 1); void perf_debug_setup(void) { libapi_set_print(pr_warning_wrapper, pr_warning_wrapper, pr_debug_wrapper); } select>mode:
authorHarsh Jain <harsh@chelsio.com>2017-02-01 21:10:28 +0530
committerHerbert Xu <herbert@gondor.apana.org.au>2017-02-03 17:45:48 +0800
commit0b529f143e8baad441a5aac9ad55ec2434d8fb46 (patch)
treefd816e548e12745d4776ad0bd661bec142d3ea06 /net/can/bcm.c
parentc26819900036f5b91608051a0fc7c76f6b4ffc7b (diff)
crypto: algif_aead - Fix kernel panic on list_del
Kernel panics when userspace program try to access AEAD interface. Remove node from Linked List before freeing its memory. Cc: <stable@vger.kernel.org> Signed-off-by: Harsh Jain <harsh@chelsio.com> Reviewed-by: Stephan Müller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'net/can/bcm.c')