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git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull namespace fixes from Eric Biederman:
"This tree includes two bug fixes for problems Oleg spotted on his
review of the recent pid namespace work. A small fix to not enable
bottom halves with irqs disabled, and a trivial build fix for f2fs
with user namespaces enabled."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
f2fs: Don't assign e_id in f2fs_acl_from_disk
proc: Allow proc_free_inum to be called from any context
pidns: Stop pid allocation when init dies
pidns: Outlaw thread creation after unshare(CLONE_NEWPID)
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Pull networking fixes from David Miller:
1) GRE tunnel drivers don't set the transport header properly, they also
blindly deref the inner protocol ipv4 and needs some checks. Fixes
from Isaku Yamahata.
2) Fix sleeps while atomic in netdevice rename code, from Eric Dumazet.
3) Fix double-spinlock in solos-pci driver, from Dan Carpenter.
4) More ARP bug fixes. Fix lockdep splat in arp_solicit() and then the
bug accidentally added by that fix. From Eric Dumazet and Cong Wang.
5) Remove some __dev* annotations that slipped back in, as well as all
HOTPLUG references. From Greg KH
6) RDS protocol uses wrong interfaces to access scatter-gather elements,
causing a regression. From Mike Marciniszyn.
7) Fix build error in cpts driver, from Richard Cochran.
8) Fix arithmetic in packet scheduler, from Stefan Hasko.
9) Similarly, fix association during calculation of random backoff in
batman-adv. From Akinobu Mita.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (21 commits)
ipv6/ip6_gre: set transport header correctly
ipv4/ip_gre: set transport header correctly to gre header
IB/rds: suppress incompatible protocol when version is known
IB/rds: Correct ib_api use with gs_dma_address/sg_dma_len
net/vxlan: Use the underlying device index when joining/leaving multicast groups
tcp: should drop incoming frames without ACK flag set
netprio_cgroup: define sk_cgrp_prioidx only if NETPRIO_CGROUP is enabled
cpts: fix a run time warn_on.
cpts: fix build error by removing useless code.
batman-adv: fix random jitter calculation
arp: fix a regression in arp_solicit()
net: sched: integer overflow fix
CONFIG_HOTPLUG removal from networking core
Drivers: network: more __dev* removal
bridge: call br_netpoll_disable in br_add_if
ipv4: arp: fix a lockdep splat in arp_solicit()
tuntap: dont use a private kmem_cache
net: devnet_rename_seq should be a seqcount
ip_gre: fix possible use after free
ip_gre: make ipgre_tunnel_xmit() not parse network header as IP unconditionally
...
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When trying to mount a file system which does not contain a journal,
but which does have a orphan list containing an inode which needs to
be truncated, the mount call with hang forever in
ext4_orphan_cleanup() because ext4_orphan_del() will return
immediately without removing the inode from the orphan list, leading
to an uninterruptible loop in kernel code which will busy out one of
the CPU's on the system.
This can be trivially reproduced by trying to mount the file system
found in tests/f_orphan_extents_inode/image.gz from the e2fsprogs
source tree. If a malicious user were to put this on a USB stick, and
mount it on a Linux desktop which has automatic mounts enabled, this
could be considered a potential denial of service attack. (Not a big
deal in practice, but professional paranoids worry about such things,
and have even been known to allocate CVE numbers for such problems.)
Signed-off-by: "Theodore Ts'o" <[email protected]>
Reviewed-by: Zheng Liu <[email protected]>
Cc: [email protected]
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Commit c278531d39 added a warning when ext4_flush_unwritten_io() is
called without i_mutex being taken. It had previously not been taken
during orphan cleanup since races weren't possible at that point in
the mount process, but as a result of this c278531d39, we will now see
a kernel WARN_ON in this case. Take the i_mutex in
ext4_orphan_cleanup() to suppress this warning.
Reported-by: Alexander Beregalov <[email protected]>
Signed-off-by: "Theodore Ts'o" <[email protected]>
Reviewed-by: Zheng Liu <[email protected]>
Cc: [email protected]
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ip6gre_xmit2() incorrectly sets transport header to inner payload
instead of GRE header. It seems copy-and-pasted from ipip.c.
Set transport header to gre header.
(In ipip case the transport header is the inner ip header, so that's
correct.)
Found by inspection. In practice the incorrect transport header
doesn't matter because the skb usually is sent to another net_device
or socket, so the transport header isn't referenced.
Signed-off-by: Isaku Yamahata <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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ipgre_tunnel_xmit() incorrectly sets transport header to inner payload
instead of GRE header. It seems copy-and-pasted from ipip.c.
So set transport header to gre header.
(In ipip case the transport header is the inner ip header, so that's
correct.)
Found by inspection. In practice the incorrect transport header
doesn't matter because the skb usually is sent to another net_device
or socket, so the transport header isn't referenced.
Signed-off-by: Isaku Yamahata <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Add an else to only print the incompatible protocol message
when version hasn't been established.
Signed-off-by: Mike Marciniszyn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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0b088e00 ("RDS: Use page_remainder_alloc() for recv bufs")
added uses of sg_dma_len() and sg_dma_address(). This makes
RDS DOA with the qib driver.
IB ulps should use ib_sg_dma_len() and ib_sg_dma_address
respectively since some HCAs overload ib_sg_dma* operations.
Signed-off-by: Mike Marciniszyn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The socket calls from vxlan to join/leave multicast group aren't
using the index of the underlying device, as a result the stack uses
the first interface that is up. This results in vxlan being non functional
over a device which isn't the 1st to be up.
Fix this by providing the iflink field to the vxlan instance
to the multicast calls.
Signed-off-by: Yan Burman <[email protected]>
Acked-by: Stephen Hemminger <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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In commit 96e0bf4b5193d (tcp: Discard segments that ack data not yet
sent) John Dykstra enforced a check against ack sequences.
In commit 354e4aa391ed5 (tcp: RFC 5961 5.2 Blind Data Injection Attack
Mitigation) I added more safety tests.
But we missed fact that these tests are not performed if ACK bit is
not set.
RFC 793 3.9 mandates TCP should drop a frame without ACK flag set.
" fifth check the ACK field,
if the ACK bit is off drop the segment and return"
Not doing so permits an attacker to only guess an acceptable sequence
number, evading stronger checks.
Many thanks to Zhiyun Qian for bringing this issue to our attention.
See :
http://web.eecs.umich.edu/~zhiyunq/pub/ccs12_TCP_sequence_number_inference.pdf
Reported-by: Zhiyun Qian <[email protected]>
Signed-off-by: Eric Dumazet <[email protected]>
Cc: Nandita Dukkipati <[email protected]>
Cc: Neal Cardwell <[email protected]>
Cc: John Dykstra <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Unfortunately with !CONFIG_PAGEFLAGS_EXTENDED, (!PageHead) is false, and
(PageHead) is true, for tail pages. If this is indeed the intended
behavior, which I doubt because it breaks cache cleaning on some ARM
systems, then the nomenclature is highly problematic.
This patch makes sure PageHead is only true for head pages and PageTail
is only true for tail pages, and neither is true for non-compound pages.
[ This buglet seems ancient - seems to have been introduced back in Apr
2008 in commit 6a1e7f777f61: "pageflags: convert to the use of new
macros". And the reason nobody noticed is because the PageHead()
tests are almost all about just sanity-checking, and only used on
pages that are actual page heads. The fact that the old code returned
true for tail pages too was thus not really noticeable. - Linus ]
Signed-off-by: Christoffer Dall <[email protected]>
Acked-by: Andrea Arcangeli <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Steve Capper <[email protected]>
Cc: Christoph Lameter <[email protected]>
Cc: [email protected] # 2.6.26+
Signed-off-by: Linus Torvalds <[email protected]>
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sock->sk_cgrp_prioidx won't be used at all if CONFIG_NETPRIO_CGROUP=n.
Signed-off-by: Li Zefan <[email protected]>
Acked-by: Neil Horman <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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This patch fixes a warning in clk_enable by calling clk_prepare_enable
instead.
Signed-off-by: Richard Cochran <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The cpts driver tries to obtain the input clock frequency by calling the
clock's internal 'recalc' method. Since <plat/clock.h> has been removed,
this code can no longer compile.
However, the driver never makes use of the frequency value, so this patch
fixes the issue by removing the offending code altogether.
Signed-off-by: Richard Cochran <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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batadv_iv_ogm_emit_send_time() attempts to calculates a random integer
in the range of 'orig_interval +- BATADV_JITTER' by the below lines.
msecs = atomic_read(&bat_priv->orig_interval) - BATADV_JITTER;
msecs += (random32() % 2 * BATADV_JITTER);
But it actually gets 'orig_interval' or 'orig_interval - BATADV_JITTER'
because '%' and '*' have same precedence and associativity is
left-to-right.
This adds the parentheses at the appropriate position so that it matches
original intension.
Signed-off-by: Akinobu Mita <[email protected]>
Acked-by: Antonio Quartulli <[email protected]>
Cc: Marek Lindner <[email protected]>
Cc: Simon Wunderlich <[email protected]>
Cc: Antonio Quartulli <[email protected]>
Cc: [email protected]
Cc: "David S. Miller" <[email protected]>
Cc: [email protected]
Signed-off-by: David S. Miller <[email protected]>
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Otherwise it fails like this on cards like the Transcend 16GB SDHC card:
mmc0: new SDHC card at address b368
mmcblk0: mmc0:b368 SDC 15.0 GiB
mmcblk0: error -110 sending status command, retrying
mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb0
Tested on my Lenovo x200 laptop.
[bhelgaas: changelog]
Signed-off-by: Andy Lutomirski <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Acked-by: Chris Ball <[email protected]>
CC: Manoj Iyer <[email protected]>
CC: [email protected]
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Ulrich reported that his USB3 cardreader does not work reliably when
connected to the USB3 port. It turns out that USB3 controller failed to
awaken when plugging in the USB3 cardreader. Further experiments found
that the USB3 host controller can only be awakened via polling, not via PME
interrupt. But if the PCIe port to which the USB3 host controller is
connected is suspended, we cannot poll the controller because its config
space is not accessible when the PCIe port is in a low power state.
To solve the issue, the PCIe port will not be suspended if any subordinate
device needs PME polling.
[bhelgaas: use bool consistently rather than mixing int/bool]
Reference: http://lkml.kernel.org/r/[email protected]
Reported-by: Ulrich Eckhardt <[email protected]>
Tested-by: Sarah Sharp <[email protected]>
Signed-off-by: Huang Ying <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Acked-by: Rafael J. Wysocki <[email protected]>
CC: [email protected] # v3.6+
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Add standard #defines for the Supported Link Speeds field in the PCIe
Link Capabilities register.
Note that prior to PCIe spec r3.0, these encodings were defined:
0001b 2.5GT/s Link speed supported
0010b 5.0GT/s and 2.5GT/s Link speed supported
Starting with spec r3.0, these encodings refer to bits 0 and 1 in the
Supported Link Speeds Vector in the Link Capabilities 2 register, and bits
0 and 1 there mean 2.5 GT/s and 5.0 GT/s, respectively. Therefore, code
that followed r2.0 and interpreted 0x1 as 2.5GT/s and 0x2 as 5.0GT/s will
continue to work, and we can identify a device using the new encodings
because it will have a non-zero Link Capabilities 2 register.
Signed-off-by: Bjorn Helgaas <[email protected]>
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Commit 284f5f9 was intended to disable the "only_one_child()" optimization
on Stratus ftServer systems, but its DMI check is wrong. It looks for
DMI_SYS_VENDOR that contains "ftServer", when it should look for
DMI_SYS_VENDOR containing "Stratus" and DMI_PRODUCT_NAME containing
"ftServer".
Tested on Stratus ftServer 6400.
Reported-by: Fadeeva Marina <[email protected]>
Reference: https://bugzilla.kernel.org/show_bug.cgi?id=51331
Signed-off-by: Myron Stowe <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
CC: [email protected] # v3.5+
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If we request "num_vfs" and the driver's sriov_configure() method enables
exactly that number ("num_vfs_enabled"), we complain "Invalid value for
number of VFs to enable" and return an error. We should silently return
success instead.
Also, use kstrtou16() since numVFs is defined to be a 16-bit field and
rework to simplify control flow.
Reported-by: Greg Rose <[email protected]>
Reference: http://lkml.kernel.org/r/20121214101911.00002f59@unknown
Signed-off-by: Bjorn Helgaas <[email protected]>
Tested-by: Donald Dutile <[email protected]>
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With user namespaces enabled building f2fs fails with:
CC fs/f2fs/acl.o
fs/f2fs/acl.c: In function ‘f2fs_acl_from_disk’:
fs/f2fs/acl.c:85:21: error: ‘struct posix_acl_entry’ has no member named ‘e_id’
make[2]: *** [fs/f2fs/acl.o] Error 1
make[2]: Target `__build' not remade because of errors.
e_id is a backwards compatibility field only used for file systems
that haven't been converted to use kuids and kgids. When the posix
acl tag field is neither ACL_USER nor ACL_GROUP assigning e_id is
unnecessary. Remove the assignment so f2fs will build with user
namespaces enabled.
Cc: Namjae Jeon <[email protected]>
Cc: Amit Sahrawat <[email protected]>
Acked-by: Jaegeuk Kim <[email protected]>
Signed-off-by: "Eric W. Biederman" <[email protected]>
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While testing the pid namespace code I hit this nasty warning.
[ 176.262617] ------------[ cut here ]------------
[ 176.263388] WARNING: at /home/eric/projects/linux/linux-userns-devel/kernel/softirq.c:160 local_bh_enable_ip+0x7a/0xa0()
[ 176.265145] Hardware name: Bochs
[ 176.265677] Modules linked in:
[ 176.266341] Pid: 742, comm: bash Not tainted 3.7.0userns+ #18
[ 176.266564] Call Trace:
[ 176.266564] [<ffffffff810a539f>] warn_slowpath_common+0x7f/0xc0
[ 176.266564] [<ffffffff810a53fa>] warn_slowpath_null+0x1a/0x20
[ 176.266564] [<ffffffff810ad9ea>] local_bh_enable_ip+0x7a/0xa0
[ 176.266564] [<ffffffff819308c9>] _raw_spin_unlock_bh+0x19/0x20
[ 176.266564] [<ffffffff8123dbda>] proc_free_inum+0x3a/0x50
[ 176.266564] [<ffffffff8111d0dc>] free_pid_ns+0x1c/0x80
[ 176.266564] [<ffffffff8111d195>] put_pid_ns+0x35/0x50
[ 176.266564] [<ffffffff810c608a>] put_pid+0x4a/0x60
[ 176.266564] [<ffffffff8146b177>] tty_ioctl+0x717/0xc10
[ 176.266564] [<ffffffff810aa4d5>] ? wait_consider_task+0x855/0xb90
[ 176.266564] [<ffffffff81086bf9>] ? default_spin_lock_flags+0x9/0x10
[ 176.266564] [<ffffffff810cab0a>] ? remove_wait_queue+0x5a/0x70
[ 176.266564] [<ffffffff811e37e8>] do_vfs_ioctl+0x98/0x550
[ 176.266564] [<ffffffff810b8a0f>] ? recalc_sigpending+0x1f/0x60
[ 176.266564] [<ffffffff810b9127>] ? __set_task_blocked+0x37/0x80
[ 176.266564] [<ffffffff810ab95b>] ? sys_wait4+0xab/0xf0
[ 176.266564] [<ffffffff811e3d31>] sys_ioctl+0x91/0xb0
[ 176.266564] [<ffffffff810a95f0>] ? task_stopped_code+0x50/0x50
[ 176.266564] [<ffffffff81939199>] system_call_fastpath+0x16/0x1b
[ 176.266564] ---[ end trace 387af88219ad6143 ]---
It turns out that spin_unlock_bh(proc_inum_lock) is not safe when
put_pid is called with another spinlock held and irqs disabled.
For now take the easy path and use spin_lock_irqsave(proc_inum_lock)
in proc_free_inum and spin_loc_irq in proc_alloc_inum(proc_inum_lock).
Signed-off-by: "Eric W. Biederman" <[email protected]>
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Oleg pointed out that in a pid namespace the sequence.
- pid 1 becomes a zombie
- setns(thepidns), fork,...
- reaping pid 1.
- The injected processes exiting.
Can lead to processes attempting access their child reaper and
instead following a stale pointer.
That waitpid for init can return before all of the processes in
the pid namespace have exited is also unfortunate.
Avoid these problems by disabling the allocation of new pids in a pid
namespace when init dies, instead of when the last process in a pid
namespace is reaped.
Pointed-out-by: Oleg Nesterov <[email protected]>
Reviewed-by: Oleg Nesterov <[email protected]>
Signed-off-by: "Eric W. Biederman" <[email protected]>
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When a journal-less ext4 filesystem is mounted on a read-only block
device (blockdev --setro will do), each remount (for other, unrelated,
flags, like suid=>nosuid etc) results in a series of scary messages
from kernel telling about I/O errors on the device.
This is becauese of the following code ext4_remount():
if (sbi->s_journal == NULL)
ext4_commit_super(sb, 1);
at the end of remount procedure, which forces writing (flushing) of
a superblock regardless whenever it is dirty or not, if the filesystem
is readonly or not, and whenever the device itself is readonly or not.
We only need call ext4_commit_super when the file system had been
previously mounted read/write.
Thanks to Eric Sandeen for help in diagnosing this issue.
Signed-off-By: Michael Tokarev <[email protected]>
Signed-off-by: "Theodore Ts'o" <[email protected]>
Cc: [email protected]
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To more accurately calculate overhead for "bsd" style
df reporting, we should count the journal blocks as
overhead as well.
Signed-off-by: Eric Sandeen <[email protected]>
Signed-off-by: "Theodore Ts'o" <[email protected]>
Tested-by: Eric Whitney <[email protected]>
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Although I put this in, I now think it was a bad decision. For most
users, there is very little to be done in this case. They get the
message, once per day, with no real context or proposed action. TBH,
it generates support calls when it probably does not need to; the
message sounds more dire than the situation really is.
Just nuke it. Normal investigation via blktrace or whatnot can
reveal poor IO patterns if bad performance is encountered.
Signed-off-by: Eric Sandeen <[email protected]>
Signed-off-by: "Theodore Ts'o" <[email protected]>
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i_mutex is not held when ->sync_file is called.
Reviewed-by: Jan Kara <[email protected]>
Signed-off-by: Andy Lutomirski <[email protected]>
Signed-off-by: "Theodore Ts'o" <[email protected]>
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We cannot wait for transaction commit in journal_unmap_buffer()
because we hold page lock which ranks below transaction start. We
solve the issue by bailing out of journal_unmap_buffer() and
jbd2_journal_invalidatepage() with -EBUSY. Caller is then responsible
for waiting for transaction commit to finish and try invalidation
again. Since the issue can happen only for page stradding i_size, it
is simple enough to manually call jbd2_journal_invalidatepage() for
such page from ext4_setattr(), check the return value and wait if
necessary.
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: "Theodore Ts'o" <[email protected]>
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In data=journal mode we don't need delalloc or DIO handling in invalidatepage
and similarly in other modes we don't need the journal handling. So split
invalidatepage implementations.
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: "Theodore Ts'o" <[email protected]>
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The sequence:
unshare(CLONE_NEWPID)
clone(CLONE_THREAD|CLONE_SIGHAND|CLONE_VM)
Creates a new process in the new pid namespace without setting
pid_ns->child_reaper. After forking this results in a NULL
pointer dereference.
Avoid this and other nonsense scenarios that can show up after
creating a new pid namespace with unshare by adding a new
check in copy_prodcess.
Pointed-out-by: Oleg Nesterov <[email protected]>
Acked-by: Oleg Nesterov <[email protected]>
Signed-off-by: "Eric W. Biederman" <[email protected]>
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Sedat reported the following commit caused a regression:
commit 9650388b5c56578fdccc79c57a8c82fb92b8e7f1
Author: Eric Dumazet <[email protected]>
Date: Fri Dec 21 07:32:10 2012 +0000
ipv4: arp: fix a lockdep splat in arp_solicit
This is due to the 6th parameter of arp_send() needs to be NULL
for the broadcast case, the above commit changed it to an all-zero
array by mistake.
Reported-by: Sedat Dilek <[email protected]>
Tested-by: Sedat Dilek <[email protected]>
Cc: Sedat Dilek <[email protected]>
Cc: Eric Dumazet <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Julian Anastasov <[email protected]>
Signed-off-by: Cong Wang <[email protected]>
Acked-by: Eric Dumazet <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Pull i2c __dev* attribute removal from Wolfram Sang:
"The squashed patches from Bill to get rid of the __dev* annotations in
the i2c subsystem. I couldn't include it in my previous pull request
due to some dependency with the mfd subsystem. I had this patch in
linux-next for two days before rc1 and nothing popped up."
* 'i2c-embedded/for-next' of git://git.pengutronix.de/git/wsa/linux:
i2c: remove __dev* attributes from subsystem
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Teach pgdat_balanced() about order-0 allocations so that we can simplify
code in a few places in vmstat.c.
Suggested-by: Andrew Morton <[email protected]>
Signed-off-by: Zlatko Calusic <[email protected]>
Cc: Mel Gorman <[email protected]>
Cc: Hugh Dickins <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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controls API failures"
Commit f0ed2ce840b3 ("[media] uvcvideo: Set error_idx properly for
extended controls API failures") causes user space to behave incorrectly
on one of my test machines (there is no sound under KDE 4.9.4 using
pulseaudio and there is a knotify4 process occupying one of the CPU
cores 100% of the time). Reverting that commit entirely fixes the
problem for me.
However, commit f0ed2ce840b3 appears to do more than it follows from its
changelog, because the changelog only says about the changes related to
ctrls->error_idx, while the commit additionally changes error codes
returned by various functions in uvc_ctrl.c and uvc_v4l2.c. It turns
out that the changes of the returned error codes confuse the user spce,
so it is sufficient to revert the part of commit f0ed2ce840b3 not
mentioned in its changelog to fix the problem.
[ 'ENOENT' is not a valid error return from an ioctl to begin with, and
I don't understand how anybody ever even thought it would be. - Linus ]
Signed-off-by: Rafael J. Wysocki <[email protected]>
Cc: Laurent Pinchart <[email protected]>
Cc: Mauro Carvalho Chehab <[email protected]>
Cc: Hans Verkuil <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Commit 68136b10 ("ARM: sunxi: Change device tree naming scheme for
sunxi") changed the naming scheme and the compatible strings used in the
device trees related to the sunXi platform, but forgot to change the
compatible string in the DT machine definition.
This prevents the kernel from booting on these boards.
Signed-off-by: Maxime Ripard <[email protected]>
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Signed-off-by: Maxime Ripard <[email protected]>
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Also adds GK106 to chipsets known by ucode.
Signed-off-by: Ben Skeggs <[email protected]>
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Signed-off-by: Ben Skeggs <[email protected]>
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This fixes suspend/resume on at least Quadro 400.
Signed-off-by: Ben Skeggs <[email protected]>
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Signed-off-by: Ben Skeggs <[email protected]>
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Signed-off-by: Ben Skeggs <[email protected]>
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Signed-off-by: Ben Skeggs <[email protected]>
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Signed-off-by: Ben Skeggs <[email protected]>
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Modesetting seems to work alright, as does graphics (using binary driver
fuc from nve7...).
Lots to be done no doubt, but this'll get an image on the screen for
people.
Signed-off-by: Ben Skeggs <[email protected]>
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CONFIG_HOTPLUG is going away as an option. As result the __dev*
markings will be going away.
Remove use of __devinit, __devexit_p, __devinitdata, __devinitconst,
and __devexit.
Signed-off-by: Bill Pemberton <[email protected]>
Acked-by: Peter Korsgaard <[email protected]> (for ocores and mux-gpio)
Acked-by: Havard Skinnemoen <[email protected]> (for i2c-gpio)
Acked-by: Guan Xuetao <[email protected]> (for puf3)
Acked-by: Barry Song <[email protected]> (for sirf)
Reviewed-by: Jean Delvare <[email protected]>
[wsa: Fixed "foo* bar" flaws while we are here]
Signed-off-by: Wolfram Sang <[email protected]>
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Result of DIV_ROUND_CLOSEST is undefined for negative dividends if the divisor
variable type is unsigned. Fix by declaring divisor as signed variable.
Signed-off-by: Guenter Roeck <[email protected]>
Acked-by: Jean Delvare <[email protected]>
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Fixed integer overflow in function htb_dequeue
Signed-off-by: Stefan Hasko <[email protected]>
Acked-by: Eric Dumazet <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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CONFIG_HOTPLUG is always enabled now, so remove the unused code that was
trying to be compiled out when this option was disabled, in the
networking core.
Cc: Bill Pemberton <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Remove some __dev* markings that snuck in the 3.8-rc1 merge window in
the drivers/net/* directory.
Cc: Bill Pemberton <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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If an LM73 device does not exist on an I2C bus, attempts to communicate
with the device result in an error code returned from the i2c read/write
functions. The current lm73 driver casts that return value from a s32
type to a s16 type, then converts it to a temperature in celsius.
Because negative temperatures are valid, it is difficult to distinguish
between an error code printed to the response buffer and a negative
temperature recorded by the sensor.
The solution is to evaluate the return value from the i2c functions
before performing any temperature calculations. If the i2c function did
not succeed, the error code should be passed back through the virtual
file system layer instead of being printed into the response buffer.
Before:
$ cat /sys/class/hwmon/hwmon0/device/temp1_input
-46
After:
$ cat /sys/class/hwmon/hwmon0/device/temp1_input
cat: read error: No such device or address
Signed-off-by: Chris Verges <[email protected]>
Cc: [email protected]
Signed-off-by: Guenter Roeck <[email protected]>
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