kernel/linux.git/net/atm/clip.c, branch v6.2

net: atm: Reduce the severity of logging in unlink_clip_vcc

2019-11-19T01:08:20+00:00

In case of errors in unlink_clip_vcc, the logging level is set to pr_crit but failures in clip_setentry are handled by pr_err(). The patch changes the severity consistent across invocations. Signed-off-by: Aditya Pakki Signed-off-by: David S. Miller

treewide: Add SPDX license identifier for more missed files

2019-05-21T08:50:45+00:00

Add SPDX license identifiers to all files which: - Have no license information of any form - Have MODULE_LICENCE("GPL*") inside which was used in the initial scan/conversion to ignore the file These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman

ipv4: Prepare rtable for IPv6 gateway

2019-04-08T22:22:40+00:00

To allow the gateway to be either an IPv4 or IPv6 address, remove rt_uses_gateway from rtable and replace with rt_gw_family. If rt_gw_family is set it implies rt_uses_gateway. Rename rt_gateway to rt_gw4 to represent the IPv4 version. Signed-off-by: David Ahern Reviewed-by: Ido Schimmel Signed-off-by: David S. Miller

atm: Preserve value of skb->truesize when accounting to vcc

2018-06-16T23:27:01+00:00

ATM accounts for in-flight TX packets in sk_wmem_alloc of the VCC on which they are to be sent. But it doesn't take ownership of those packets from the sock (if any) which originally owned them. They should remain owned by their actual sender until they've left the box. There's a hack in pskb_expand_head() to avoid adjusting skb->truesize for certain skbs, precisely to avoid messing up sk_wmem_alloc accounting. Ideally that hack would cover the ATM use case too, but it doesn't — skbs which aren't owned by any sock, for example PPP control frames, still get their truesize adjusted when the low-level ATM driver adds headroom. This has always been an issue, it seems. The truesize of a packet increases, and sk_wmem_alloc on the VCC goes negative. But this wasn't for normal traffic, only for control frames. So I think we just got away with it, and we probably needed to send 2GiB of LCP echo frames before the misaccounting would ever have caused a problem and caused atm_may_send() to start refusing packets. Commit 14afee4b609 ("net: convert sock.sk_wmem_alloc from atomic_t to refcount_t") did exactly what it was intended to do, and turned this mostly-theoretical problem into a real one, causing PPPoATM to fail immediately as sk_wmem_alloc underflows and atm_may_send() *immediately* starts refusing to allow new packets. The least intrusive solution to this problem is to stash the value of skb->truesize that was accounted to the VCC, in a new member of the ATM_SKB(skb) structure. Then in atm_pop_raw() subtract precisely that value instead of the then-current value of skb->truesize. Fixes: 158f323b9868 ("net: adjust skb->truesize in pskb_expand_head()") Signed-off-by: David Woodhouse Tested-by: Kevin Darbyshire-Bryant Signed-off-by: David S. Miller

proc: introduce proc_create_net{,_data}

2018-05-16T05:24:30+00:00

Variants of proc_create{,_data} that directly take a struct seq_operations and deal with network namespaces in ->open and ->release. All callers of proc_create + seq_open_net converted over, and seq_{open,release}_net are removed entirely. Signed-off-by: Christoph Hellwig

net: Use octal not symbolic permissions

2018-03-26T16:07:48+00:00

Prefer the direct use of octal for permissions. Done with checkpatch -f --types=SYMBOLIC_PERMS --fix-inplace and some typing. Miscellanea: o Whitespace neatening around these conversions. Signed-off-by: Joe Perches Signed-off-by: David S. Miller

net: atm: Convert timers to use timer_setup()

2017-10-18T11:40:27+00:00

In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Also drops a redundant initialization that is already set up by DEFINE_TIMER. Cc: "David S. Miller" Cc: Hans Liljestrand Cc: "Reshetova, Elena" Cc: Bhumika Goyal Cc: Johannes Berg Cc: Roopa Prabhu Cc: Augusto Mecking Caringi Cc: Jarod Wilson Cc: Kalle Valo Cc: Thomas Gleixner Cc: Alexey Dobriyan Cc: netdev@vger.kernel.org Signed-off-by: Kees Cook Signed-off-by: David S. Miller

net: atm: make atmdev_ops const

2017-08-10T05:43:50+00:00

Make these const as they are only stored in the ops field of a atm_dev structure, which is const. Done using Coccinelle. Signed-off-by: Bhumika Goyal Signed-off-by: David S. Miller

net: convert sock.sk_wmem_alloc from atomic_t to refcount_t

2017-07-01T14:39:08+00:00

refcount_t type and corresponding API should be used instead of atomic_t when the variable is used as a reference counter. This allows to avoid accidental refcounter overflows that might lead to use-after-free situations. Signed-off-by: Elena Reshetova Signed-off-by: Hans Liljestrand Signed-off-by: Kees Cook Signed-off-by: David Windsor Signed-off-by: David S. Miller

net: convert neighbour.refcnt from atomic_t to refcount_t

2017-07-01T14:39:07+00:00