Stanislaw Gruszka e6b15f0fc7 ethtool: do not vzalloc(0) on registers dump ... [ Upstream commit 3808d34838 ] If ->get_regs_len() callback return 0, we allocate 0 bytes of memory, what print ugly warning in dmesg, which can be found further below. This happen on mac80211 devices where ieee80211_get_regs_len() just return 0 and driver only fills ethtool_regs structure and actually do not provide any dump. However I assume this can happen on other drivers i.e. when for some devices driver provide regs dump and for others do not. Hence preventing to to print warning in ethtool code seems to be reasonable. ethtool: vmalloc: allocation failure: 0 bytes, mode:0x24080c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_ZERO) <snip> Call Trace: [<ffffffff813bde47>] dump_stack+0x63/0x8c [<ffffffff811b0a1f>] warn_alloc+0x13f/0x170 [<ffffffff811f0476>] __vmalloc_node_range+0x1e6/0x2c0 [<ffffffff811f0874>] vzalloc+0x54/0x60 [<ffffffff8169986c>] dev_ethtool+0xb4c/0x1b30 [<ffffffff816adbb1>] dev_ioctl+0x181/0x520 [<ffffffff816714d2>] sock_do_ioctl+0x42/0x50 <snip> Mem-Info: active_anon:435809 inactive_anon:173951 isolated_anon:0 active_file:835822 inactive_file:196932 isolated_file:0 unevictable:0 dirty:8 writeback:0 unstable:0 slab_reclaimable:157732 slab_unreclaimable:10022 mapped:83042 shmem:306356 pagetables:9507 bounce:0 free:130041 free_pcp:1080 free_cma:0 Node 0 active_anon:1743236kB inactive_anon:695804kB active_file:3343288kB inactive_file:787728kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:332168kB dirty:32kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 1225424kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no Node 0 DMA free:15900kB min:136kB low:168kB high:200kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15984kB managed:15900kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 3187 7643 7643 Node 0 DMA32 free:419732kB min:28124kB low:35152kB high:42180kB active_anon:541180kB inactive_anon:248988kB active_file:1466388kB inactive_file:389632kB unevictable:0kB writepending:0kB present:3370280kB managed:3290932kB mlocked:0kB slab_reclaimable:217184kB slab_unreclaimable:4180kB kernel_stack:160kB pagetables:984kB bounce:0kB free_pcp:2236kB local_pcp:660kB free_cma:0kB lowmem_reserve[]: 0 0 4456 4456 Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2017-06-17 06:39:36 +02:00
..
6lowpan	6lowpan: put mcast compression in an own function	2015-10-21 00:49:25 +02:00
9p	p9_client_readdir() fix	2017-05-02 21:19:55 -07:00
802
8021q	net: add recursion limit to GRO	2016-11-15 07:46:38 +01:00
appletalk
atm
ax25	ax25: Fix segfault after sock connection timeout	2017-02-04 09:45:09 +01:00
batman-adv	batman-adv: Check for alloc errors when preparing TT local data	2016-12-15 08:49:23 -08:00
bluetooth	Bluetooth: Fix user channel for 32bit userspace on 64bit kernel	2017-05-20 14:27:02 +02:00
bridge	net: bridge: start hello timer only if device is up	2017-06-14 13:16:19 +02:00
caif	net: caif: fix misleading indentation	2016-09-30 10:18:35 +02:00
can	can: Fix kernel panic at security_sock_rcv_skb	2017-02-18 16:39:26 +01:00
ceph	libceph: force GFP_NOIO for socket allocations	2017-04-08 09:53:30 +02:00
core	ethtool: do not vzalloc(0) on registers dump	2017-06-17 06:39:36 +02:00
dcb	net/dcb: make dcbnl.c explicitly non-modular	2015-10-09 07:52:27 -07:00
dccp	ipv6/dccp: do not inherit ipv6_mc_list from parent	2017-06-07 12:05:57 +02:00
decnet	decnet: Do not build routes to devices without decnet private data.	2016-05-18 17:06:35 -07:00
dns_resolver	net: dns_resolver: convert time_t to time64_t	2015-11-18 16:27:46 -05:00
dsa	net: dsa: Bring back device detaching in dsa_slave_suspend()	2017-02-04 09:45:10 +01:00
ethernet	net: introduce device min_header_len	2017-02-18 16:39:27 +01:00
hsr	net/hsr: fix a warning message	2015-11-23 14:56:15 -05:00
ieee802154	net: fix percpu memory leaks	2015-11-02 22:47:14 -05:00
ipv4	NET: Fix /proc/net/arp for AX.25	2017-06-17 06:39:35 +02:00
ipv6	ipv6: Fix IPv6 packet loss in scenarios involving roaming + snooping switches	2017-06-17 06:39:36 +02:00
ipx	ipx: call ipxitf_put() in ioctl error path	2017-05-25 14:30:13 +02:00
irda	irda: Fix lockdep annotations in hashbin_delete().	2017-02-26 11:07:50 +01:00
iucv	af_iucv: Validate socket address length in iucv_sock_bind()	2016-03-03 15:07:03 -08:00
key	af_key: fix two typos	2015-10-23 03:05:19 -07:00
l2tp	l2tp: fix PPP pseudo-wire auto-loading	2017-05-02 21:19:52 -07:00
l3mdev	net: Add netif_is_l3_slave	2015-10-07 04:27:43 -07:00
lapb
llc	net/llc: avoid BUG_ON() in skb_orphan()	2017-02-26 11:07:49 +01:00
mac80211	mac80211: RX BA support for sta max_rx_aggregation_subframes	2017-05-20 14:27:03 +02:00
mac802154	mac802154: llsec: use kzfree	2015-10-21 00:49:24 +02:00
mpls	mpls: Send route delete notifications when router module is unloaded	2017-03-22 12:04:16 +01:00
netfilter	netfilter: nfnetlink: correctly validate length of batch messages	2017-04-30 05:49:28 +02:00
netlabel	netlabel: add address family checks to netlbl_{sock,req}_delattr()	2016-08-20 18:09:22 +02:00
netlink	netlink: Allow direct reclaim for fallback allocation	2017-05-08 07:46:02 +02:00
netrom
nfc	net: rename SOCK_ASYNC_NOSPACE and SOCK_ASYNC_WAITDATA	2015-12-01 15:45:05 -05:00
openvswitch	net/openvswitch: Set the ipv6 source tunnel key address attribute correctly	2017-03-30 09:35:12 +02:00
packet	net/packet: fix overflow in check for tp_reserve	2017-05-02 21:19:51 -07:00
phonet	phonet: properly unshare skbs in phonet_rcv()	2016-01-31 11:29:00 -08:00
rds	RDS: Fix the atomicity for congestion map update	2017-05-02 21:19:49 -07:00
rfkill	rfkill: fix rfkill_fop_read wait_event usage	2016-03-03 15:07:26 -08:00
rose
rxrpc	net: rename SOCK_ASYNC_NOSPACE and SOCK_ASYNC_WAITDATA	2015-12-01 15:45:05 -05:00
sched	net_sched: close another race condition in tcf_mirred_release()	2017-05-02 21:19:49 -07:00
sctp	sctp: fix ICMP processing if skb is non-linear	2017-06-07 12:05:59 +02:00
sunrpc	SUNRPC: fix refcounting problems with auth_gss messages.	2017-04-21 09:30:08 +02:00
switchdev	switchdev: pass pointer to fib_info instead of copy	2016-06-24 10:18:16 -07:00
tipc	tipc: check minimum bearer MTU	2017-04-30 05:49:28 +02:00
unix	net: unix: properly re-increment inflight counter of GC discarded candidates	2017-03-30 09:35:13 +02:00
vmw_vsock	VSOCK: Detach QP check should filter out non matching QPs.	2017-04-27 09:09:32 +02:00
wimax
wireless	nl80211: fix dumpit error path RTNL deadlocks	2017-03-30 09:35:18 +02:00
x25	net: fix a kernel infoleak in x25 module	2016-05-18 17:06:43 -07:00
xfrm	xfrm_user: validate XFRM_MSG_NEWAE incoming ESN size harder	2017-03-31 09:49:52 +02:00
compat.c
Kconfig	net: Introduce L3 Master device abstraction	2015-09-29 20:40:32 -07:00
Makefile	net: Introduce L3 Master device abstraction	2015-09-29 20:40:32 -07:00
socket.c	net: socket: fix recvmmsg not returning error from sock_error	2017-02-26 11:07:50 +01:00
sysctl_net.c	net: Use ns_capable_noaudit() when determining net sysctl permissions	2016-09-15 08:27:50 +02:00