- 06 Jan, 2009 8 commits
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Brice Goglin authored
To help board identification and diagnosis, print the MAC and serial number on probe failure if they are available. Signed-off-by:
Brice Goglin <brice@myri.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Jarek Poplawski authored
New nodes are inserted in u32_change() under rtnl_lock() with wmb(), so without tcf_tree_lock() like in other classifiers (e.g. cls_fw). This isn't enough without rmb() on the read side, but on the other hand adding such barriers doesn't give any savings, so the lock is added instead. Reported-by:
m0sia <m0sia@plotinka.ru> Signed-off-by:
Jarek Poplawski <jarkao2@gmail.com> Signed-off-by:
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Heiko Carstens authored
If the iucv module is compiled in/loaded but no user is registered cpu hot remove doesn't work. Reason for that is that the iucv cpu hotplug notifier on CPU_DOWN_PREPARE checks if the iucv_buffer_cpumask would be empty after the corresponding bit would be cleared. However the bit was never set since iucv wasn't enable. That causes all cpu hot unplug operations to fail in this scenario. To fix this use iucv_path_table as an indicator wether iucv is enabled or not. Signed-off-by:
Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by:
Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by:
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Hendrik Brueckner authored
Free iucv path after iucv_path_sever() calls in iucv_callback_connreq() (path_pending() iucv callback). If iucv_path_accept() fails, free path and free/kill newly created socket. Signed-off-by:
Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Signed-off-by:
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Ursula Braun authored
For certain types of AFIUCV socket connect failures IUCV connections are left over. Add some cleanup-statements to avoid cluttered IUCV connections. Signed-off-by:
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Hendrik Brueckner authored
If the iucv_path_connect() call fails then return an error code that corresponds to the iucv_path_connect() failure condition; instead of returning -ECONNREFUSED for any failure. This helps to improve error handling for user space applications (e.g. inform the user that the z/VM guest is not authorized to connect to other guest virtual machines). The error return codes are based on those described in connect(2). Signed-off-by:
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Stephen Rothwell authored
The flags field of struct ehea_port is only used with test_bit(), clear_bit() and set_bit() and these interfaces only work on "unsigned long"s, so change the field to be an "unsigned long". Also, this field only has two bits defined for it (0 and 1) so will still be fine if someone builds this driver for a 32 bit arch (at least as far as this flags field is concerned). Also note that ehea_driver_flags is only used in ehca_main.c, so make it static in there. Signed-off-by:
Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
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David S. Miller authored
This reverts commit 22604c86. We can't fix this issue in this way, because we now can try to take the dev_base_lock rwlock as a writer in software interrupt context and that is not allowed without major surgery elsewhere. This initial link state problem needs to be solved in some other way. Signed-off-by:
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- 05 Jan, 2009 31 commits
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David S. Miller authored
In splice TCP receive, the SPLICE_F_NONBLOCK flag is used to compute the "timeo" value. So checking it again inside of the main receive loop to trigger -EAGAIN processing is entirely unnecessary. Noticed by Jarek P. and Lennert Buytenhek. Signed-off-by: -
Lennert Buytenhek authored
Currently, setting SPLICE_F_NONBLOCK on splice from a TCP socket results in masking of EOF (RDHUP) and error conditions on the socket by an -EAGAIN return. Move the NONBLOCK check in tcp_splice_read() to be after the EOF and error checks to fix this. Signed-off-by:
Lennert Buytenhek <buytenh@marvell.com> Signed-off-by:
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Gerrit Renker authored
This patch integrates the TFRC library, which is a dependency of CCID-3 (and CCID-4), with the new use of CCIDs in the DCCP module. Signed-off-by:
Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by:
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Gerrit Renker authored
This patch cleans up after integrating the CCID modules and, in addition, * moves the if/else cases from ccid_delete() into ccid_hc_{tx,rx}_delete(); * removes the 'gfp' argument to ccid_new() - since it is always gfp_any(). Signed-off-by: -
Gerrit Renker authored
Based on Arnaldo's earlier patch, this patch integrates the standardised CCID congestion control plugins (CCID-2 and CCID-3) of DCCP with dccp.ko: * enables a faster connection path by eliminating the need to always go through the CCID registration lock; * updates the implementation to use only a single array whose size equals the number of configured CCIDs instead of the maximum (256); * since the CCIDs are now fixed array elements, synchronization is no longer needed, simplifying use and implementation. CCID-2 is suggested as minimum for a basic DCCP implementation (RFC 4340, 10); CCID-3 is a standards-track CCID supported by RFC 4342 and RFC 5348. Signed-off-by:
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Heiko Carstens authored
drivers/s390/net/qeth_l3_main.c: In function 'qeth_l3_setadapter_parms': drivers/s390/net/qeth_l3_main.c:1049: warning: too many arguments for format Signed-off-by:
Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by:
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Klaus-Dieter Wacker authored
From: Klaus-Dieter Wacker <kdwacker@de.ibm.com> The device driver qeth dos not support large send using EDDP for HiperSockets. Signed-off-by:
Klaus-Dieter Wacker <kdwacker@de.ibm.com> Signed-off-by:
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Frank Blaschka authored
The ip assist hw command for setting an IP address last unacceptable long so we can not spin while we waiting for the irq. Since we can ensure process context for all occurrences of this command we can use wait. Signed-off-by:
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Ursula Braun authored
For z/VM GuestLAN or VSWITCH devices the transport layer is configured in z/VM. The layer2 attribute of a participating Linux device has to match the z/VM definition. In case of a mismatch Linux currently crashes in qeth recovery due to a reference to the not yet existing net_device. Solution: add a check for existence of net_device and add a message pointing to the mismatch of layer definitions in Linux and z/VM. Signed-off-by:
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Ursula Braun authored
OSA-devices operating in layer3 mode offer adding of the source MAC address to the QDIO header of inbound packets. The qeth driver can exploit this functionality to replace FAKELL-entries in the ethernet header of received packets. Signed-off-by:
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Klaus-Dieter Wacker authored
The pre z9 machines provide an mcl string in EBCDIC format, z9 or later provide string in ASCII format. Signed-off-by:
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Oliver Hartkopp authored
Since commit ca109491 ("hrtimer: removing all ur callback modes") the hrtimer callbacks are processed only in hardirq context. This patch moves some functionality into tasklets to run in softirq context. Additionally some duplicated code was removed in bcm_rx_thr_flush() and an avoidable memcpy was removed from bcm_rx_handler(). Signed-off-by:
Oliver Hartkopp <oliver@hartkopp.net> Signed-off-by:
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Roel Kluin authored
Use kfree_skb instead of kfree for struct sk_buff pointers. Signed-off-by:
Roel Kluin <roel.kluin@gmail.com> Signed-off-by:
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Ilpo Järvinen authored
Signed-off-by:
Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Reported-by:
Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by:
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Michael Marineau authored
From: Michael Marineau <mike@marineau.org> Commit b4730016 "Do not fire linkwatch events until the device is registered." was made as a workaround for drivers that call netif_carrier_off before registering the device. Unfortunately this causes these drivers to incorrectly report their link status as IF_OPER_UNKNOWN which can falsely set the IFF_RUNNING flag when the interface is first brought up. This issues was previously pointed out[1] but was dismissed saying that IFF_RUNNING is not related to the link status. From my digging IFF_RUNNING, as reported to userspace, is based on the link state. It is set based on __LINK_STATE_START and IF_OPER_UP or IF_OPER_UNKNOWN. See [2], [3], and [4]. (Whether or not the kernel has IFF_RUNNING set in flags is not reported to user space so it may well be independent of the link, I don't know if and when it may get set.) The end result depends slightly depending on the driver. The the two I tested were e1000e and b44. With e1000e if the system is booted without a network cable attached the interface will falsely report RUNNING when it is brought up causing NetworkManager to attempt to start it and eventually time out. With b44 when the system is booted with a network cable attached and brought up with dhcpcd it will time out the first time. The attached patch that will still set the operstate variable correctly to IF_OPER_UP/DOWN/etc when linkwatch_fire_event is called but then return rather than skipping the linkwatch_fire_event call entirely as the previous fix did. (sorry it isn't inline, I don't have a patch friendly email client at the moment) Signed-off-by:
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Gerrit Renker authored
register_pernet_gen_device() expects 'int*', found via sparse. CHECK drivers/net/tun.c drivers/net/tun.c:1245:36: warning: incorrect type in argument 1 (different signedness) drivers/net/tun.c:1245:36: expected int *id drivers/net/tun.c:1245:36: got unsigned int static [toplevel] *<noident> Signed-off-by:
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Bruce Allan authored
Add missing space after if, switch, for and while keywords. Signed-off-by:
Bruce Allan <bruce.w.allan@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by:
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Simon Holm Thøgersen authored
commit 4dec9b80 ("rfkill: strip pointless notifier chain") removed the only user of rfkill_led_trigger() that was not guarded by #ifdef CONFIG_RFKILL_LEDS. Therefore, move rfkill_led_trigger() completely inside #ifdef CONFIG_RFKILL_LEDS and avoid the compile time warning: net/rfkill/rfkill.c:59: warning: 'rfkill_led_trigger' defined but not used Signed-off-by:
Simon Holm Thøgersen <odie@cs.aau.dk> Signed-off-by:
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Ron Mercer authored
Some indexed registers do not have error bits. In these cases a value of zero should be used for error checking. Signed-off-by:
Ron Mercer <ron.mercer@qlogic.com> Signed-off-by:
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Ron Mercer authored
The length field for these rings is 16-bits. If the length is the max supported 65536 then the setting should be zero. Signed-off-by:
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Ron Mercer authored
Shadow registers are consistent memory locations to which the chip echos ring indexes in little endian format. These values need to be endian swapped before referencing. Note: The register pointer declaration uses the volatile modifier which causes warnings in checkpatch. Per Documentation/volatile-considered-harmful.txt: - Pointers to data structures in coherent memory which might be modified by I/O devices can, sometimes, legitimately be volatile. A ring buffer used by a network adapter, where that adapter changes pointers to indicate which descriptors have been processed, is an example of this type of situation. Signed-off-by: -
Ron Mercer authored
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Ron Mercer authored
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Baruch Siach authored
The enc28j60 driver doesn't check whether the length of the packet as reported by the hardware fits into the preallocated buffer. When stressed, the hardware may report insanely large packets even tough the "Receive OK" bit is set. Fix this. Signed-off-by:
Baruch Siach <baruch@tkos.co.il> Signed-off-by:
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Roel Kluin authored
Correct two typos. Signed-off-by:
Karsten Keil <kkeil@suse.de> Signed-off-by:
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Herbert Xu authored
This patch allows GRO to merge page frags (skb_shinfo(skb)->frags) in one skb, rather than using the less efficient frag_list. It also adds a new interface, napi_gro_frags to allow drivers to inject page frags directly into the stack without allocating an skb. This is intended to be the GRO equivalent for LRO's lro_receive_frags interface. The existing GSO interface can already handle page frags with or without an appended frag_list so nothing needs to be changed there. The merging itself is rather simple. We store any new frag entries after the last existing entry, without checking whether the first new entry can be merged with the last existing entry. Making this check would actually be easy but since no existing driver can produce contiguous frags anyway it would just be mental masturbation. If the total number of entries would exceed the capacity of a single skb, we simply resort to using frag_list as we do now. Signed-off-by:
Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by:
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Herbert Xu authored
In order to allow GRO packets without frag_list at all, we need to store the MSS in the packet itself. The obvious place is gso_size. The only thing to watch out for is if the packet ends up not being GRO then we need to clear gso_size before pushing the packet into the stack. Signed-off-by:
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Jaswinder Singh Rajput authored
Firmware blob is big endian Signed-off-by:
Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by:
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Jaswinder Singh Rajput authored
Firmware blob looks like this... u8 firmware_major u8 firmware_minor u8 firmware_fix u8 pad __be32 start_address __be32 length (total, including BSS sections to be zeroed) data... (in __be32 words, which is native for the firmware) Signed-off-by: -
Jaswinder Singh authored
We store the firmware in its native big-endian form now, so the loop in ace_copy() is modified to use be32_to_cpup() when writing it out. We can forget the BSS,SBSS sections of the firmware, since we were clearing all the device's RAM anyway. And the text,rodata,data sections can all be loaded as a single chunk since they're contiguous (give or take a few dozen bytes in between). Signed-off-by:
Jaswinder Singh <jaswinder@infradead.org> Signed-off-by:
David Woodhouse <dwmw2@infradead.org> Acked-by:
Jes Sorensen <jes@sgi.com> Signed-off-by:
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David S. Miller authored
Thanks to excellent diagnosis by Eduard Guzovsky. The core problem is that on a network with lots of active multicast traffic, the neighbour cache can fill up. If we try to allocate a new route and thus neighbour cache entry, the bog-standard GC attempt the neighbour layer does in ineffective because route entries hold a reference to the existing neighbour entries and GC can only liberate entries with no references. IPV4 already has a way to handle this, by doing a route cache GC in such situations (when neigh attach returns -ENOBUFS). So simply mimick this on the ipv6 side. Tested-by:
Eduard Guzovsky <eguzovsky@gmail.com> Signed-off-by:
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- 30 Dec, 2008 1 commit
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Herbert Xu authored
When we converted the protocol atomic counters such as the orphan count and the total socket count deadlocks were introduced due to the mismatch in BH status of the spots that used the percpu counter operations. Based on the diagnosis and patch by Peter Zijlstra, this patch fixes these issues by disabling BH where we may be in process context. Reported-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
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