#ifndef __BPF_UTIL__ #define __BPF_UTIL__ #include #include #include #include static inline unsigned int bpf_num_possible_cpus(void) { static const char *fcpu = "/sys/devices/system/cpu/possible"; unsigned int start, end, possible_cpus = 0; char buff[128]; FILE *fp; fp = fopen(fcpu, "r"); if (!fp) { printf("Failed to open %s: '%s'!\n", fcpu, strerror(errno)); exit(1); } while (fgets(buff, sizeof(buff), fp)) { if (sscanf(buff, "%u-%u", &start, &end) == 2) { possible_cpus = start == 0 ? end + 1 : 0; break; } } fclose(fp); if (!possible_cpus) { printf("Failed to retrieve # possible CPUs!\n"); exit(1); } return possible_cpus; } #endif /* __BPF_UTIL__ */ /a> index : net-next.git
net-next plumbingsTobias Klauser
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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/l2tp/l2tp_ppp.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/l2tp/l2tp_ppp.c')