/* Copyright (c) 2013-2015 PLUMgrid, http://plumgrid.com * * This program is free software; you can redistribute it and/or * modify it under the terms of version 2 of the GNU General Public * License as published by the Free Software Foundation. */ #include #include #include #include #include "bpf_helpers.h" #define _(P) ({typeof(P) val = 0; bpf_probe_read(&val, sizeof(val), &P); val;}) /* kprobe is NOT a stable ABI * kernel functions can be removed, renamed or completely change semantics. * Number of arguments and their positions can change, etc. * In such case this bpf+kprobe example will no longer be meaningful */ SEC("kprobe/__netif_receive_skb_core") int bpf_prog1(struct pt_regs *ctx) { /* attaches to kprobe netif_receive_skb, * looks for packets on loobpack device and prints them */ char devname[IFNAMSIZ]; struct net_device *dev; struct sk_buff *skb; int len; /* non-portable! works for the given kernel only */ skb = (struct sk_buff *) PT_REGS_PARM1(ctx); dev = _(skb->dev); len = _(skb->len); bpf_probe_read(devname, sizeof(devname), dev->name); if (devname[0] == 'l' && devname[1] == 'o') { char fmt[] = "skb %p len %d\n"; /* using bpf_trace_printk() for DEBUG ONLY */ bpf_trace_printk(fmt, sizeof(fmt), skb, len); } return 0; } char _license[] SEC("license") = "GPL"; u32 _version SEC("version") = LINUX_VERSION_CODE; class='sub'>net-next plumbingsTobias Klauser
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authorMarkus Mayer <mmayer@broadcom.com>2016-12-19 12:10:28 -0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2017-01-27 11:43:49 +0100
commit3c223c19aea85d3dda1416c187915f4a30b04b1f (patch)
tree2d2021f8161db3e9ed38b9a966a225b66dff8e58 /sound/pci/au88x0/Makefile
parent9b02c54bc951fca884ba5719f42a27e8240965bf (diff)
cpufreq: brcmstb-avs-cpufreq: properly retrieve P-state upon suspend
The AVS GET_PMAP command does return a P-state along with the P-map information. However, that P-state is the initial P-state when the P-map was first downloaded to AVS. It is *not* the current P-state. Therefore, we explicitly retrieve the P-state using the GET_PSTATE command. Signed-off-by: Markus Mayer <mmayer@broadcom.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'sound/pci/au88x0/Makefile')