/* Copyright (c) 2016 PLUMgrid * * 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. */ #define KBUILD_MODNAME "foo" #include #include #include #include #include #include #include #include "bpf_helpers.h" struct bpf_map_def SEC("maps") rxcnt = { .type = BPF_MAP_TYPE_PERCPU_ARRAY, .key_size = sizeof(u32), .value_size = sizeof(long), .max_entries = 256, }; static void swap_src_dst_mac(void *data) { unsigned short *p = data; unsigned short dst[3]; dst[0] = p[0]; dst[1] = p[1]; dst[2] = p[2]; p[0] = p[3]; p[1] = p[4]; p[2] = p[5]; p[3] = dst[0]; p[4] = dst[1]; p[5] = dst[2]; } static int parse_ipv4(void *data, u64 nh_off, void *data_end) { struct iphdr *iph = data + nh_off; if (iph + 1 > data_end) return 0; return iph->protocol; } static int parse_ipv6(void *data, u64 nh_off, void *data_end) { struct ipv6hdr *ip6h = data + nh_off; if (ip6h + 1 > data_end) return 0; return ip6h->nexthdr; } SEC("xdp1") int xdp_prog1(struct xdp_md *ctx) { void *data_end = (void *)(long)ctx->data_end; void *data = (void *)(long)ctx->data; struct ethhdr *eth = data; int rc = XDP_DROP; long *value; u16 h_proto; u64 nh_off; u32 ipproto; nh_off = sizeof(*eth); if (data + nh_off > data_end) return rc; h_proto = eth->h_proto; if (h_proto == htons(ETH_P_8021Q) || h_proto == htons(ETH_P_8021AD)) { struct vlan_hdr *vhdr; vhdr = data + nh_off; nh_off += sizeof(struct vlan_hdr); if (data + nh_off > data_end) return rc; h_proto = vhdr->h_vlan_encapsulated_proto; } if (h_proto == htons(ETH_P_8021Q) || h_proto == htons(ETH_P_8021AD)) { struct vlan_hdr *vhdr; vhdr = data + nh_off; nh_off += sizeof(struct vlan_hdr); if (data + nh_off > data_end) return rc; h_proto = vhdr->h_vlan_encapsulated_proto; } if (h_proto == htons(ETH_P_IP)) ipproto = parse_ipv4(data, nh_off, data_end); else if (h_proto == htons(ETH_P_IPV6)) ipproto = parse_ipv6(data, nh_off, data_end); else ipproto = 0; value = bpf_map_lookup_elem(&rxcnt, &ipproto); if (value) *value += 1; if (ipproto == IPPROTO_UDP) { swap_src_dst_mac(data); rc = XDP_TX; } return rc; } char _license[] SEC("license") = "GPL"; lue='grep'>log msg
path: root/drivers/usb/host/isp1362-hcd.c
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authorZach Ploskey <zach@ploskey.com>2017-01-22 00:47:19 -0800
committerAndy Shevchenko <andriy.shevchenko@linux.intel.com>2017-01-22 12:47:06 +0200
commitcfee5d63767b2e7997c1f36420d008abbe61565c (patch)
treec66a512525d224f9675c33a8d156e0f058db1de6 /drivers/usb/host/isp1362-hcd.c
parent5a00b6c2438460b870a451f14593fc40d3c7edf6 (diff)
platform/x86: ideapad-laptop: handle ACPI event 1
On Ideapad laptops, ACPI event 1 is currently not handled. Many models log "ideapad_laptop: Unknown event: 1" every 20 seconds or so while running on battery power. Some convertible laptops receive this event when switching in and out of tablet mode. This adds and additional case for event 1 in ideapad_acpi_notify to call ideapad_input_report(priv, vpc_bit), so that the event is reported to userspace and we avoid unnecessary logging. Fixes bug #107481 (https://bugzilla.kernel.org/show_bug.cgi?id=107481) Fixes bug #65751 (https://bugzilla.kernel.org/show_bug.cgi?id=65751) Signed-off-by: Zach Ploskey <zach@ploskey.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'drivers/usb/host/isp1362-hcd.c')