From 205c8ada314f78e6637342089e5b585a051d6cf5 Mon Sep 17 00:00:00 2001 From: Joe Stringer Date: Thu, 8 Dec 2016 18:46:19 -0800 Subject: samples/bpf: Remove perf_event_open() declaration This declaration was made in samples/bpf/libbpf.c for convenience, but there's already one in tools/perf/perf-sys.h. Reuse that one. Committer notes: Testing it: $ make -j4 O=../build/v4.9.0-rc8+ samples/bpf/ make[1]: Entering directory '/home/build/v4.9.0-rc8+' CHK include/config/kernel.release GEN ./Makefile CHK include/generated/uapi/linux/version.h Using /home/acme/git/linux as source for kernel CHK include/generated/utsrelease.h CHK include/generated/timeconst.h CHK include/generated/bounds.h CHK include/generated/asm-offsets.h CALL /home/acme/git/linux/scripts/checksyscalls.sh HOSTCC samples/bpf/test_verifier.o HOSTCC samples/bpf/libbpf.o HOSTCC samples/bpf/../../tools/lib/bpf/bpf.o HOSTCC samples/bpf/test_maps.o HOSTCC samples/bpf/sock_example.o HOSTCC samples/bpf/bpf_load.o HOSTLD samples/bpf/trace_event HOSTLD samples/bpf/sampleip HOSTLD samples/bpf/tc_l2_redirect make[1]: Leaving directory '/home/build/v4.9.0-rc8+' $ Also tested the offwaketime resulting from the rebuild, seems to work as before. Signed-off-by: Joe Stringer Tested-by: Arnaldo Carvalho de Melo Cc: Alexei Starovoitov Cc: Daniel Borkmann Cc: Wang Nan Link: http://lkml.kernel.org/r/20161209024620.31660-7-joe@ovn.org [ Use -I$(srctree)/tools/lib/ to support out of source code tree builds ] Signed-off-by: Arnaldo Carvalho de Melo --- samples/bpf/sampleip_user.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'samples/bpf/sampleip_user.c') diff --git a/samples/bpf/sampleip_user.c b/samples/bpf/sampleip_user.c index 5ac5adf75931..be59d7dcbdde 100644 --- a/samples/bpf/sampleip_user.c +++ b/samples/bpf/sampleip_user.c @@ -21,6 +21,7 @@ #include #include "libbpf.h" #include "bpf_load.h" +#include "perf-sys.h" #define DEFAULT_FREQ 99 #define DEFAULT_SECS 5 @@ -49,7 +50,7 @@ static int sampling_start(int *pmu_fd, int freq) }; for (i = 0; i < nr_cpus; i++) { - pmu_fd[i] = perf_event_open(&pe_sample_attr, -1 /* pid */, i, + pmu_fd[i] = sys_perf_event_open(&pe_sample_attr, -1 /* pid */, i, -1 /* group_fd */, 0 /* flags */); if (pmu_fd[i] < 0) { fprintf(stderr, "ERROR: Initializing perf sampling\n"); -- cgit v1.2.3