提交 · 7d6556ac66eeb430a574e9e3381a3110965d17aa · OpenHarmony / kernel_linux

25 1月, 2017 2 次提交

vxlan: do not age static remote mac entries · efb5f68f

由 Balakrishnan Raman 提交于 1月 23, 2017

Mac aging is applicable only for dynamically learnt remote mac
entries. Check for user configured static remote mac entries
and skip aging.
Signed-off-by: NBalakrishnan Raman <ramanb@cumulusnetworks.com>
Signed-off-by: NRoopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

efb5f68f

vxlan: don't flush static fdb entries on admin down · 8b3f9337

由 Roopa Prabhu 提交于 1月 23, 2017

This patch skips flushing static fdb entries in
ndo_stop, but flushes all fdb entries during vxlan
device delete. This is consistent with the bridge
driver fdb
Signed-off-by: NRoopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

8b3f9337

18 1月, 2017 1 次提交

vxlan: fix byte order of vxlan-gpe port number · d5ff72d9

由 Lance Richardson 提交于 1月 16, 2017

vxlan->cfg.dst_port is in network byte order, so an htons()
is needed here. Also reduced comment length to stay closer
to 80 column width (still slightly over, however).

Fixes: e1e5314d ("vxlan: implement GPE")
Signed-off-by: NLance Richardson <lrichard@redhat.com>
Acked-by: NJiri Benc <jbenc@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

d5ff72d9

12 1月, 2017 1 次提交

vxlan: Set ports in flow key when doing route lookups · 4ecb1d83

由 Martynas Pumputis 提交于 1月 11, 2017

Otherwise, a xfrm policy with sport/dport being set cannot be matched.
Signed-off-by: NMartynas Pumputis <martynas@weave.works>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

4ecb1d83

01 12月, 2016 1 次提交

vxlan: fix a potential issue when create a new vxlan fdb entry. · 17b46365

由 Haishuang Yan 提交于 11月 29, 2016

vxlan_fdb_append may return error, so add the proper check,
otherwise it will cause memory leak.
Signed-off-by: NHaishuang Yan <yanhaishuang@cmss.chinamobile.com>

Changes in v2:
  - Unnecessary to initialize rc to zero.
Acked-by: NJiri Benc <jbenc@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

17b46365

18 11月, 2016 1 次提交

netns: make struct pernet_operations::id unsigned int · c7d03a00

由 Alexey Dobriyan 提交于 11月 17, 2016

Make struct pernet_operations::id unsigned.

There are 2 reasons to do so:

1)
This field is really an index into an zero based array and
thus is unsigned entity. Using negative value is out-of-bound
access by definition.

2)
On x86_64 unsigned 32-bit data which are mixed with pointers
via array indexing or offsets added or subtracted to pointers
are preffered to signed 32-bit data.

"int" being used as an array index needs to be sign-extended
to 64-bit before being used.

	void f(long *p, int i)
	{
		g(p[i]);
	}

  roughly translates to

	movsx	rsi, esi
	mov	rdi, [rsi+...]
	call 	g

MOVSX is 3 byte instruction which isn't necessary if the variable is
unsigned because x86_64 is zero extending by default.

Now, there is net_generic() function which, you guessed it right, uses
"int" as an array index:

	static inline void *net_generic(const struct net *net, int id)
	{
		...
		ptr = ng->ptr[id - 1];
		...
	}

And this function is used a lot, so those sign extensions add up.

Patch snipes ~1730 bytes on allyesconfig kernel (without all junk
messing with code generation):

	add/remove: 0/0 grow/shrink: 70/598 up/down: 396/-2126 (-1730)

Unfortunately some functions actually grow bigger.
This is a semmingly random artefact of code generation with register
allocator being used differently. gcc decides that some variable
needs to live in new r8+ registers and every access now requires REX
prefix. Or it is shifted into r12, so [r12+0] addressing mode has to be
used which is longer than [r8]

However, overall balance is in negative direction:

	add/remove: 0/0 grow/shrink: 70/598 up/down: 396/-2126 (-1730)
	function                                     old     new   delta
	nfsd4_lock                                  3886    3959     +73
	tipc_link_build_proto_msg                   1096    1140     +44
	mac80211_hwsim_new_radio                    2776    2808     +32
	tipc_mon_rcv                                1032    1058     +26
	svcauth_gss_legacy_init                     1413    1429     +16
	tipc_bcbase_select_primary                   379     392     +13
	nfsd4_exchange_id                           1247    1260     +13
	nfsd4_setclientid_confirm                    782     793     +11
		...
	put_client_renew_locked                      494     480     -14
	ip_set_sockfn_get                            730     716     -14
	geneve_sock_add                              829     813     -16
	nfsd4_sequence_done                          721     703     -18
	nlmclnt_lookup_host                          708     686     -22
	nfsd4_lockt                                 1085    1063     -22
	nfs_get_client                              1077    1050     -27
	tcf_bpf_init                                1106    1076     -30
	nfsd4_encode_fattr                          5997    5930     -67
	Total: Before=154856051, After=154854321, chg -0.00%
Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

c7d03a00

16 11月, 2016 7 次提交

vxlan: Fix uninitialized variable warnings. · 8ebd115b

由 David S. Miller 提交于 11月 15, 2016

drivers/net/vxlan.c: In function ‘vxlan_xmit_one’:
drivers/net/vxlan.c:2141:10: warning: ‘err’ may be used uninitialized in this function [-Wmaybe-uninitialized]
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

8ebd115b

vxlan: simplify vxlan xmit · 0770b53b