#include #include "perf_regs.h" #include "thread.h" #include "map.h" #include "event.h" #include "debug.h" #include "tests/tests.h" #include "arch-tests.h" #define STACK_SIZE 8192 static int sample_ustack(struct perf_sample *sample, struct thread *thread, u64 *regs) { struct stack_dump *stack = &sample->user_stack; struct map *map; unsigned long sp; u64 stack_size, *buf; buf = malloc(STACK_SIZE); if (!buf) { pr_debug("failed to allocate sample uregs data\n"); return -1; } sp = (unsigned long) regs[PERF_REG_POWERPC_R1]; map = map_groups__find(thread->mg, MAP__VARIABLE, (u64) sp); if (!map) { pr_debug("failed to get stack map\n"); free(buf); return -1; } stack_size = map->end - sp; stack_size = stack_size > STACK_SIZE ? STACK_SIZE : stack_size; memcpy(buf, (void *) sp, stack_size); stack->data = (char *) buf; stack->size = stack_size; return 0; } int test__arch_unwind_sample(struct perf_sample *sample, struct thread *thread) { struct regs_dump *regs = &sample->user_regs; u64 *buf; buf = calloc(1, sizeof(u64) * PERF_REGS_MAX); if (!buf) { pr_debug("failed to allocate sample uregs data\n"); return -1; } perf_regs_load(buf); regs->abi = PERF_SAMPLE_REGS_ABI; regs->regs = buf; regs->mask = PERF_REGS_MASK; return sample_ustack(sample, thread, buf); } input type='submit' value='switch'/> net-next plumbingsTobias Klauser
summaryrefslogtreecommitdiff
path: root/net/sctp/sm_make_chunk.c
diff options
context:
space:
mode:
authorVincent <vincent.stehle@laposte.net>2017-01-30 15:06:43 +0100
committerDavid S. Miller <davem@davemloft.net>2017-01-31 13:07:40 -0500
commitc73e44269369e936165f0f9b61f1f09a11dae01c (patch)
treee2188e900ba06302f8ed2746cb07edd3efbc5c35 /net/sctp/sm_make_chunk.c
parent040587af31228d82c52267f717c9fcdb65f36335 (diff)
net: thunderx: avoid dereferencing xcv when NULL
This fixes the following smatch and coccinelle warnings: drivers/net/ethernet/cavium/thunder/thunder_xcv.c:119 xcv_setup_link() error: we previously assumed 'xcv' could be null (see line 118) [smatch] drivers/net/ethernet/cavium/thunder/thunder_xcv.c:119:16-20: ERROR: xcv is NULL but dereferenced. [coccinelle] Fixes: 6465859aba1e66a5 ("net: thunderx: Add RGMII interface type support") Signed-off-by: Vincent Stehlé <vincent.stehle@laposte.net> Cc: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp/sm_make_chunk.c')