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Merge android11-5.4.61+ (3a3ba4b) into msm-5.4

Browse source 
* refs/heads/tmp-3a3ba4b
  UPSTREAM: udp: initialize is_flist with 0 in udp_gro_receive
  UPSTREAM: udp: Support UDP fraglist GRO/GSO.
  UPSTREAM: net: Support GRO/GSO fraglist chaining.
  UPSTREAM: net: Add a netdev software feature set that defaults to off.
  BACKPORT: net: Add fraglist GRO/GSO feature flags
  Revert "BACKPORT: net: core: use listified Rx for GRO_NORMAL in napi_gro_receive()"
  ANDROID: vendor_hooks: Add vendor hooks for key combination

Change-Id: If5fd73581f5038b9f82be74a19c2deef8aaa1e4a
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
This commit is contained in:
Blagovest Kolenichev 2020-09-14 16:40:29 -07:00
commit 23326187cd
12 changed files with 1026 additions and 653 deletions
Download patch file Download diff file Expand all files Collapse all files

1409
android/abi_gki_aarch64_d6430e6763.xml
View file

File diff suppressed because it is too large Load diff

1
drivers/android/vendor_hooks.c
View file

@ -55,3 +55,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_alter_rwsem_list_add);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_alter_futex_plist_add);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_is_fpsimd_save);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ipi_stop);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_input_handle_event);

5
drivers/input/input.c
View file

@ -26,6 +26,10 @@
#include "input-compat.h"
#include "input-poller.h"
#ifndef __GENKSYMS__
#include <trace/hooks/debug.h>
#endif
MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
MODULE_DESCRIPTION("Input core");
MODULE_LICENSE("GPL");
@ -438,6 +442,7 @@ void input_event(struct input_dev *dev,
if (is_event_supported(type, dev->evbit, EV_MAX)) {
spin_lock_irqsave(&dev->event_lock, flags);
trace_android_vh_input_handle_event(dev, type, code, value);
input_handle_event(dev, type, code, value);
spin_unlock_irqrestore(&dev->event_lock, flags);
}

9
include/linux/netdev_features.h
View file

@ -53,8 +53,9 @@ enum {
NETIF_F_GSO_ESP_BIT, /* ... ESP with TSO */
NETIF_F_GSO_UDP_BIT, /* ... UFO, deprecated except tuntap */
NETIF_F_GSO_UDP_L4_BIT, /* ... UDP payload GSO (not UFO) */
NETIF_F_GSO_FRAGLIST_BIT, /* ... Fraglist GSO */
/**/NETIF_F_GSO_LAST = /* last bit, see GSO_MASK */
NETIF_F_GSO_UDP_L4_BIT,
NETIF_F_GSO_FRAGLIST_BIT,
NETIF_F_FCOE_CRC_BIT, /* FCoE CRC32 */
NETIF_F_SCTP_CRC_BIT, /* SCTP checksum offload */
@ -80,6 +81,7 @@ enum {
NETIF_F_GRO_HW_BIT, /* Hardware Generic receive offload */
NETIF_F_HW_TLS_RECORD_BIT, /* Offload TLS record */
NETIF_F_GRO_FRAGLIST_BIT, /* Fraglist GRO */
/*
* Add your fresh new feature above and remember to update
@ -150,6 +152,8 @@ enum {
#define NETIF_F_GSO_UDP_L4 __NETIF_F(GSO_UDP_L4)
#define NETIF_F_HW_TLS_TX __NETIF_F(HW_TLS_TX)
#define NETIF_F_HW_TLS_RX __NETIF_F(HW_TLS_RX)
#define NETIF_F_GRO_FRAGLIST __NETIF_F(GRO_FRAGLIST)
#define NETIF_F_GSO_FRAGLIST __NETIF_F(GSO_FRAGLIST)
/* Finds the next feature with the highest number of the range of start till 0.
*/
@ -226,6 +230,9 @@ static inline int find_next_netdev_feature(u64 feature, unsigned long start)
/* changeable features with no special hardware requirements */
#define NETIF_F_SOFT_FEATURES (NETIF_F_GSO | NETIF_F_GRO)
/* Changeable features with no special hardware requirements that defaults to off. */
#define NETIF_F_SOFT_FEATURES_OFF NETIF_F_GRO_FRAGLIST
#define NETIF_F_VLAN_FEATURES (NETIF_F_HW_VLAN_CTAG_FILTER | \
NETIF_F_HW_VLAN_CTAG_RX | \
NETIF_F_HW_VLAN_CTAG_TX | \

5
include/linux/netdevice.h
View file

@ -2350,7 +2350,8 @@ struct napi_gro_cb {
/* Number of gro_receive callbacks this packet already went through */
u8 recursion_counter:4;
/* 1 bit hole */
/* GRO is done by frag_list pointer chaining. */
u8 is_flist:1;
/* used to support CHECKSUM_COMPLETE for tunneling protocols */
__wsum csum;
@ -2705,6 +2706,7 @@ struct net_device *dev_get_by_napi_id(unsigned int napi_id);
int netdev_get_name(struct net *net, char *name, int ifindex);
int dev_restart(struct net_device *dev);
int skb_gro_receive(struct sk_buff *p, struct sk_buff *skb);
int skb_gro_receive_list(struct sk_buff *p, struct sk_buff *skb);
static inline unsigned int skb_gro_offset(const struct sk_buff *skb)
{
@ -4572,6 +4574,7 @@ static inline bool net_gso_ok(netdev_features_t features, int gso_type)
BUILD_BUG_ON(SKB_GSO_ESP != (NETIF_F_GSO_ESP >> NETIF_F_GSO_SHIFT));
BUILD_BUG_ON(SKB_GSO_UDP != (NETIF_F_GSO_UDP >> NETIF_F_GSO_SHIFT));
BUILD_BUG_ON(SKB_GSO_UDP_L4 != (NETIF_F_GSO_UDP_L4 >> NETIF_F_GSO_SHIFT));
BUILD_BUG_ON(SKB_GSO_FRAGLIST != (NETIF_F_GSO_FRAGLIST >> NETIF_F_GSO_SHIFT));
return (features & feature) == feature;
}

4
include/linux/skbuff.h
View file

@ -593,6 +593,8 @@ enum {
SKB_GSO_UDP = 1 << 16,
SKB_GSO_UDP_L4 = 1 << 17,
SKB_GSO_FRAGLIST = 1 << 18,
};
#if BITS_PER_LONG > 32
@ -3529,6 +3531,8 @@ void skb_scrub_packet(struct sk_buff *skb, bool xnet);
bool skb_gso_validate_network_len(const struct sk_buff *skb, unsigned int mtu);
bool skb_gso_validate_mac_len(const struct sk_buff *skb, unsigned int len);
struct sk_buff *skb_segment(struct sk_buff *skb, netdev_features_t features);
struct sk_buff *skb_segment_list(struct sk_buff *skb, netdev_features_t features,
unsigned int offset);
struct sk_buff *skb_vlan_untag(struct sk_buff *skb);
int skb_ensure_writable(struct sk_buff *skb, int write_len);
int __skb_vlan_pop(struct sk_buff *skb, u16 *vlan_tci);

2
include/net/udp.h
View file

@ -167,7 +167,7 @@ typedef struct sock *(*udp_lookup_t)(struct sk_buff *skb, __be16 sport,
__be16 dport);
struct sk_buff *udp_gro_receive(struct list_head *head, struct sk_buff *skb,
struct udphdr *uh, udp_lookup_t lookup);
struct udphdr *uh, struct sock *sk);
int udp_gro_complete(struct sk_buff *skb, int nhoff, udp_lookup_t lookup);
struct sk_buff *__udp_gso_segment(struct sk_buff *gso_skb,

8
include/trace/hooks/debug.h
View file

@ -12,11 +12,19 @@
#if defined(CONFIG_TRACEPOINTS) && defined(CONFIG_ANDROID_VENDOR_HOOKS)
struct pt_regs;
DECLARE_HOOK(android_vh_ipi_stop,
TP_PROTO(struct pt_regs *regs),
TP_ARGS(regs))
struct input_dev;
DECLARE_HOOK(android_vh_input_handle_event,
TP_PROTO(struct input_dev *dev, unsigned int type,
unsigned int code, int value),
TP_ARGS(dev, type, code, value))
#else
#define trace_android_vh_ipi_stop(regs)
#define trace_android_vh_input_handle_event(dev, type, code, value)
#endif
#endif /* _TRACE_HOOK_DEBUG_H */

13
net/core/dev.c
View file

@ -3032,7 +3032,7 @@ struct sk_buff *__skb_gso_segment(struct sk_buff *skb,
segs = skb_mac_gso_segment(skb, features);
if (unlikely(skb_needs_check(skb, tx_path) && !IS_ERR(segs)))
if (segs != skb && unlikely(skb_needs_check(skb, tx_path) && !IS_ERR(segs)))
skb_warn_bad_offload(skb);
return segs;
@ -5609,13 +5609,12 @@ static void napi_skb_free_stolen_head(struct sk_buff *skb)
kmem_cache_free(skbuff_head_cache, skb);
}
static gro_result_t napi_skb_finish(struct napi_struct *napi,
struct sk_buff *skb,
gro_result_t ret)
static gro_result_t napi_skb_finish(gro_result_t ret, struct sk_buff *skb)
{
switch (ret) {
case GRO_NORMAL:
gro_normal_one(napi, skb);
if (netif_receive_skb_internal(skb))
ret = GRO_DROP;
break;
case GRO_DROP:
@ -5647,7 +5646,7 @@ gro_result_t napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
skb_gro_reset_offset(skb);
ret = napi_skb_finish(napi, skb, dev_gro_receive(napi, skb));
ret = napi_skb_finish(dev_gro_receive(napi, skb), skb);
trace_napi_gro_receive_exit(ret);
return ret;
@ -9042,7 +9041,7 @@ int register_netdevice(struct net_device *dev)
/* Transfer changeable features to wanted_features and enable
* software offloads (GSO and GRO).
*/
dev->hw_features |= NETIF_F_SOFT_FEATURES;
dev->hw_features |= (NETIF_F_SOFT_FEATURES | NETIF_F_SOFT_FEATURES_OFF);
dev->features |= NETIF_F_SOFT_FEATURES;
if (dev->netdev_ops->ndo_udp_tunnel_add) {

91
net/core/skbuff.c
View file

@ -3640,6 +3640,97 @@ static inline skb_frag_t skb_head_frag_to_page_desc(struct sk_buff *frag_skb)
return head_frag;
}
struct sk_buff *skb_segment_list(struct sk_buff *skb,
netdev_features_t features,
unsigned int offset)
{
struct sk_buff *list_skb = skb_shinfo(skb)->frag_list;
unsigned int tnl_hlen = skb_tnl_header_len(skb);
unsigned int delta_truesize = 0;
unsigned int delta_len = 0;
struct sk_buff *tail = NULL;
struct sk_buff *nskb;
skb_push(skb, -skb_network_offset(skb) + offset);
skb_shinfo(skb)->frag_list = NULL;
do {
nskb = list_skb;
list_skb = list_skb->next;
if (!tail)
skb->next = nskb;
else
tail->next = nskb;
tail = nskb;
delta_len += nskb->len;
delta_truesize += nskb->truesize;
skb_push(nskb, -skb_network_offset(nskb) + offset);
__copy_skb_header(nskb, skb);
skb_headers_offset_update(nskb, skb_headroom(nskb) - skb_headroom(skb));
skb_copy_from_linear_data_offset(skb, -tnl_hlen,
nskb->data - tnl_hlen,
offset + tnl_hlen);
if (skb_needs_linearize(nskb, features) &&
__skb_linearize(nskb))
goto err_linearize;
} while (list_skb);
skb->truesize = skb->truesize - delta_truesize;
skb->data_len = skb->data_len - delta_len;
skb->len = skb->len - delta_len;
skb_gso_reset(skb);
skb->prev = tail;
if (skb_needs_linearize(skb, features) &&
__skb_linearize(skb))
goto err_linearize;
skb_get(skb);
return skb;
err_linearize:
kfree_skb_list(skb->next);
skb->next = NULL;
return ERR_PTR(-ENOMEM);
}
EXPORT_SYMBOL_GPL(skb_segment_list);
int skb_gro_receive_list(struct sk_buff *p, struct sk_buff *skb)
{
if (unlikely(p->len + skb->len >= 65536))
return -E2BIG;
if (NAPI_GRO_CB(p)->last == p)
skb_shinfo(p)->frag_list = skb;
else
NAPI_GRO_CB(p)->last->next = skb;
skb_pull(skb, skb_gro_offset(skb));
NAPI_GRO_CB(p)->last = skb;
NAPI_GRO_CB(p)->count++;
p->data_len += skb->len;
p->truesize += skb->truesize;
p->len += skb->len;
NAPI_GRO_CB(skb)->same_flow = 1;
return 0;
}
EXPORT_SYMBOL_GPL(skb_gro_receive_list);
/**
* skb_segment - Perform protocol segmentation on skb.
* @head_skb: buffer to segment

105
net/ipv4/udp_offload.c
View file

@ -184,6 +184,20 @@ out_unlock:
}
EXPORT_SYMBOL(skb_udp_tunnel_segment);
static struct sk_buff *__udp_gso_segment_list(struct sk_buff *skb,
netdev_features_t features)
{
unsigned int mss = skb_shinfo(skb)->gso_size;
skb = skb_segment_list(skb, features, skb_mac_header_len(skb));
if (IS_ERR(skb))
return skb;
udp_hdr(skb)->len = htons(sizeof(struct udphdr) + mss);
return skb;
}
struct sk_buff *__udp_gso_segment(struct sk_buff *gso_skb,
netdev_features_t features)
{
@ -196,6 +210,9 @@ struct sk_buff *__udp_gso_segment(struct sk_buff *gso_skb,
__sum16 check;
__be16 newlen;
if (skb_shinfo(gso_skb)->gso_type & SKB_GSO_FRAGLIST)
return __udp_gso_segment_list(gso_skb, features);
mss = skb_shinfo(gso_skb)->gso_size;
if (gso_skb->len <= sizeof(*uh) + mss)
return ERR_PTR(-EINVAL);
@ -354,6 +371,7 @@ static struct sk_buff *udp_gro_receive_segment(struct list_head *head,
struct udphdr *uh2;
struct sk_buff *p;
unsigned int ulen;
int ret = 0;
/* requires non zero csum, for symmetry with GSO */
if (!uh->check) {
@ -369,7 +387,6 @@ static struct sk_buff *udp_gro_receive_segment(struct list_head *head,
}
/* pull encapsulating udp header */
skb_gro_pull(skb, sizeof(struct udphdr));
skb_gro_postpull_rcsum(skb, uh, sizeof(struct udphdr));
list_for_each_entry(p, head, list) {
if (!NAPI_GRO_CB(p)->same_flow)
@ -383,14 +400,40 @@ static struct sk_buff *udp_gro_receive_segment(struct list_head *head,
continue;
}
if (NAPI_GRO_CB(skb)->is_flist != NAPI_GRO_CB(p)->is_flist) {
NAPI_GRO_CB(skb)->flush = 1;
return p;
}
/* Terminate the flow on len mismatch or if it grow "too much".
* Under small packet flood GRO count could elsewhere grow a lot
* leading to excessive truesize values.
* On len mismatch merge the first packet shorter than gso_size,
* otherwise complete the GRO packet.
*/
if (ulen > ntohs(uh2->len) || skb_gro_receive(p, skb) ||
ulen != ntohs(uh2->len) ||
if (ulen > ntohs(uh2->len)) {
pp = p;
} else {
if (NAPI_GRO_CB(skb)->is_flist) {
if (!pskb_may_pull(skb, skb_gro_offset(skb))) {
NAPI_GRO_CB(skb)->flush = 1;
return NULL;
}
if ((skb->ip_summed != p->ip_summed) ||
(skb->csum_level != p->csum_level)) {
NAPI_GRO_CB(skb)->flush = 1;
return NULL;
}
ret = skb_gro_receive_list(p, skb);
} else {
skb_gro_postpull_rcsum(skb, uh,
sizeof(struct udphdr));
ret = skb_gro_receive(p, skb);
}
}
if (ret || ulen != ntohs(uh2->len) ||
NAPI_GRO_CB(p)->count >= UDP_GRO_CNT_MAX)
pp = p;
@ -401,36 +444,30 @@ static struct sk_buff *udp_gro_receive_segment(struct list_head *head,
return NULL;
}
INDIRECT_CALLABLE_DECLARE(struct sock *udp6_lib_lookup_skb(struct sk_buff *skb,
__be16 sport, __be16 dport));
struct sk_buff *udp_gro_receive(struct list_head *head, struct sk_buff *skb,
struct udphdr *uh, udp_lookup_t lookup)
struct udphdr *uh, struct sock *sk)
{
struct sk_buff *pp = NULL;
struct sk_buff *p;
struct udphdr *uh2;
unsigned int off = skb_gro_offset(skb);
int flush = 1;
struct sock *sk;
rcu_read_lock();
sk = INDIRECT_CALL_INET(lookup, udp6_lib_lookup_skb,
udp4_lib_lookup_skb, skb, uh->source, uh->dest);
if (!sk)
goto out_unlock;
NAPI_GRO_CB(skb)->is_flist = 0;
if (skb->dev->features & NETIF_F_GRO_FRAGLIST)
NAPI_GRO_CB(skb)->is_flist = sk ? !udp_sk(sk)->gro_enabled: 1;
if (udp_sk(sk)->gro_enabled) {
if ((sk && udp_sk(sk)->gro_enabled) || NAPI_GRO_CB(skb)->is_flist) {
pp = call_gro_receive(udp_gro_receive_segment, head, skb);
rcu_read_unlock();
return pp;
}
if (NAPI_GRO_CB(skb)->encap_mark ||
if (!sk || NAPI_GRO_CB(skb)->encap_mark ||
(skb->ip_summed != CHECKSUM_PARTIAL &&
NAPI_GRO_CB(skb)->csum_cnt == 0 &&
!NAPI_GRO_CB(skb)->csum_valid) ||
!udp_sk(sk)->gro_receive)
goto out_unlock;
goto out;
/* mark that this skb passed once through the tunnel gro layer */
NAPI_GRO_CB(skb)->encap_mark = 1;
@ -457,8 +494,7 @@ struct sk_buff *udp_gro_receive(struct list_head *head, struct sk_buff *skb,
skb_gro_postpull_rcsum(skb, uh, sizeof(struct udphdr));
pp = call_gro_receive_sk(udp_sk(sk)->gro_receive, sk, head, skb);
out_unlock:
rcu_read_unlock();
out:
skb_gro_flush_final(skb, pp, flush);
return pp;
}
@ -468,8 +504,10 @@ INDIRECT_CALLABLE_SCOPE
struct sk_buff *udp4_gro_receive(struct list_head *head, struct sk_buff *skb)
{
struct udphdr *uh = udp_gro_udphdr(skb);
struct sk_buff *pp;
struct sock *sk;
if (unlikely(!uh) || !static_branch_unlikely(&udp_encap_needed_key))
if (unlikely(!uh))
goto flush;
/* Don't bother verifying checksum if we're going to flush anyway. */
@ -484,7 +522,11 @@ struct sk_buff *udp4_gro_receive(struct list_head *head, struct sk_buff *skb)
inet_gro_compute_pseudo);
skip:
NAPI_GRO_CB(skb)->is_ipv6 = 0;
return udp_gro_receive(head, skb, uh, udp4_lib_lookup_skb);
rcu_read_lock();
sk = static_branch_unlikely(&udp_encap_needed_key) ? udp4_lib_lookup_skb(skb, uh->source, uh->dest) : NULL;
pp = udp_gro_receive(head, skb, uh, sk);
rcu_read_unlock();
return pp;
flush:
NAPI_GRO_CB(skb)->flush = 1;
@ -517,9 +559,7 @@ int udp_gro_complete(struct sk_buff *skb, int nhoff,
rcu_read_lock();
sk = INDIRECT_CALL_INET(lookup, udp6_lib_lookup_skb,
udp4_lib_lookup_skb, skb, uh->source, uh->dest);
if (sk && udp_sk(sk)->gro_enabled) {
err = udp_gro_complete_segment(skb);
} else if (sk && udp_sk(sk)->gro_complete) {
if (sk && udp_sk(sk)->gro_complete) {
skb_shinfo(skb)->gso_type = uh->check ? SKB_GSO_UDP_TUNNEL_CSUM
: SKB_GSO_UDP_TUNNEL;
@ -529,6 +569,8 @@ int udp_gro_complete(struct sk_buff *skb, int nhoff,
skb->encapsulation = 1;
err = udp_sk(sk)->gro_complete(sk, skb,
nhoff + sizeof(struct udphdr));
} else {
err = udp_gro_complete_segment(skb);
}
rcu_read_unlock();
@ -544,6 +586,23 @@ INDIRECT_CALLABLE_SCOPE int udp4_gro_complete(struct sk_buff *skb, int nhoff)
const struct iphdr *iph = ip_hdr(skb);
struct udphdr *uh = (struct udphdr *)(skb->data + nhoff);
if (NAPI_GRO_CB(skb)->is_flist) {
uh->len = htons(skb->len - nhoff);
skb_shinfo(skb)->gso_type |= (SKB_GSO_FRAGLIST|SKB_GSO_UDP_L4);
skb_shinfo(skb)->gso_segs = NAPI_GRO_CB(skb)->count;
if (skb->ip_summed == CHECKSUM_UNNECESSARY) {
if (skb->csum_level < SKB_MAX_CSUM_LEVEL)
skb->csum_level++;
} else {
skb->ip_summed = CHECKSUM_UNNECESSARY;
skb->csum_level = 0;
}
return 0;
}
if (uh->check)
uh->check = ~udp_v4_check(skb->len - nhoff, iph->saddr,
iph->daddr, 0);

27
net/ipv6/udp_offload.c
View file

@ -115,8 +115,10 @@ INDIRECT_CALLABLE_SCOPE
struct sk_buff *udp6_gro_receive(struct list_head *head, struct sk_buff *skb)
{
struct udphdr *uh = udp_gro_udphdr(skb);
struct sk_buff *pp;
struct sock *sk;
if (unlikely(!uh) || !static_branch_unlikely(&udpv6_encap_needed_key))
if (unlikely(!uh))
goto flush;
/* Don't bother verifying checksum if we're going to flush anyway. */
@ -132,7 +134,11 @@ struct sk_buff *udp6_gro_receive(struct list_head *head, struct sk_buff *skb)
skip:
NAPI_GRO_CB(skb)->is_ipv6 = 1;
return udp_gro_receive(head, skb, uh, udp6_lib_lookup_skb);
rcu_read_lock();
sk = static_branch_unlikely(&udpv6_encap_needed_key) ? udp6_lib_lookup_skb(skb, uh->source, uh->dest) : NULL;
pp = udp_gro_receive(head, skb, uh, sk);
rcu_read_unlock();
return pp;
flush:
NAPI_GRO_CB(skb)->flush = 1;
@ -144,6 +150,23 @@ INDIRECT_CALLABLE_SCOPE int udp6_gro_complete(struct sk_buff *skb, int nhoff)
const struct ipv6hdr *ipv6h = ipv6_hdr(skb);
struct udphdr *uh = (struct udphdr *)(skb->data + nhoff);
if (NAPI_GRO_CB(skb)->is_flist) {
uh->len = htons(skb->len - nhoff);
skb_shinfo(skb)->gso_type |= (SKB_GSO_FRAGLIST|SKB_GSO_UDP_L4);
skb_shinfo(skb)->gso_segs = NAPI_GRO_CB(skb)->count;
if (skb->ip_summed == CHECKSUM_UNNECESSARY) {
if (skb->csum_level < SKB_MAX_CSUM_LEVEL)
skb->csum_level++;
} else {
skb->ip_summed = CHECKSUM_UNNECESSARY;
skb->csum_level = 0;
}
return 0;
}
if (uh->check)
uh->check = ~udp_v6_check(skb->len - nhoff, &ipv6h->saddr,
&ipv6h->daddr, 0);