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When having built-in IrDA, we hit the following error:
`irda_sysctl_unregister' referenced in section `.init.text' of
net/built-in.o: defined in discarded section `.exit.text' of
net/built-in.o
`irda_proc_unregister' referenced in section `.init.text' of
net/built-in.o: defined in discarded section `.exit.text' of
net/built-in.o
`irsock_cleanup' referenced in section `.init.text' of net/built-in.o:
defined in discarded section `.exit.text' of net/built-in.o
`irttp_cleanup' referenced in section `.init.text' of net/built-in.o:
defined in discarded section `.exit.text' of net/built-in.o
`iriap_cleanup' referenced in section `.init.text' of net/built-in.o:
defined in discarded section `.exit.text' of net/built-in.o
`irda_device_cleanup' referenced in section `.init.text' of
net/built-in.o: defined in discarded section `.exit.text' of
net/built-in.o
`irlap_cleanup' referenced in section `.init.text' of net/built-in.o:
defined in discarded section `.exit.text' of net/built-in.o
`irlmp_cleanup' referenced in section `.init.text' of net/built-in.o:
defined in discarded section `.exit.text' of net/built-in.o
make[1]: *** [.tmp_vmlinux1] Error 1
make: *** [_all] Error 2
This is due to the irda_init fix recently added, where we call __exit
routines from an __init one. It is a build failure that I didn't catch
because it doesn't show up when building IrDA as a module. My apologies
for that.
The following patch fixes that failure and is against your net-2.6
tree. I hope it can make it to the merge window, and stable@kernel.org
is CCed on this mail.
Signed-off-by: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Make all initialized struct seq_operations in net/ const
Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Many struct file_operations in the kernel can be "const". Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data. In addition it'll catch accidental writes at compile time to
these shared resources.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
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On Sat, 2006-11-18 at 16:12 +0300, Andrey Borzenkov wrote:
> =============================================
> [ INFO: possible recursive locking detected ]
> 2.6.19-rc5-2avb #2
> - ---------------------------------------------
> pppd/26425 is trying to acquire lock:
> (&hashbin->hb_spinlock){....}, at: [<dfdea87a>] irlmp_slsap_inuse+0x5a/0x170
> [irda]
>
> but task is already holding lock:
> (&hashbin->hb_spinlock){....}, at: [<dfdea857>] irlmp_slsap_inuse+0x37/0x170
> [irda]
>
> other info that might help us debug this:
> 1 lock held by pppd/26425:
> #0: (&hashbin->hb_spinlock){....}, at: [<dfdea857>]
> irlmp_slsap_inuse+0x37/0x170 [irda]
>
> stack backtrace:
> [<c010413c>] dump_trace+0x1cc/0x200
> [<c010418a>] show_trace_log_lvl+0x1a/0x30
> [<c01047f2>] show_trace+0x12/0x20
> [<c01048c9>] dump_stack+0x19/0x20
> [<c01346ca>] __lock_acquire+0x8fa/0xc20
> [<c0134d2d>] lock_acquire+0x5d/0x80
> [<c02a851c>] _spin_lock+0x2c/0x40
> [<dfdea87a>] irlmp_slsap_inuse+0x5a/0x170 [irda]
> [<dfdebab2>] irlmp_open_lsap+0x62/0x180 [irda]
> [<dfdf35d1>] irttp_open_tsap+0x181/0x230 [irda]
> [<dfdc0c3d>] ircomm_open_tsap+0x5d/0xa0 [ircomm]
> [<dfdc05d8>] ircomm_open+0xb8/0xd0 [ircomm]
> [<dfdd0477>] ircomm_tty_open+0x4f7/0x570 [ircomm_tty]
> [<c020bbe4>] tty_open+0x174/0x340
> [<c016bd69>] chrdev_open+0x89/0x170
> [<c0167bd6>] __dentry_open+0xa6/0x1d0
> [<c0167da5>] nameidata_to_filp+0x35/0x40
> [<c0167df9>] do_filp_open+0x49/0x50
> [<c0167e47>] do_sys_open+0x47/0xd0
> [<c0167f0c>] sys_open+0x1c/0x20
> [<c010307d>] sysenter_past_esp+0x56/0x8d
> [<b7f86410>] 0xb7f86410
> =======================
The comment at the nesting lock says:
/* Careful for priority inversions here !
* irlmp->links is never taken while another IrDA
* spinlock is held, so we are safe. Jean II */
So, under the assumption the author was right, it just needs a lockdep
annotation.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch replaces the bunch of arbitrary 64 and 128 bytes alloc_skb() calls
with more accurate allocation sizes.
Signed-off-by: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Panagiotis Issaris <takis@issaris.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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As pointed out by Christoph Hellwig, dev_alloc_skb() is not intended to be
used for allocating TX sk_buff. The IrDA stack was exclusively calling
dev_alloc_skb() on the TX path, and this patch fixes that.
Signed-off-by: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
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irda_device_info->hints[] is byte aligned but is being
accessed as a u16
Based upon a patch by Luke Yang <luke.adi@gmail.com>.
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch contains the following possible cleanups:
- make the following needlessly global function static:
- irnet/irnet_ppp.c: irnet_init
- remove the following unneeded EXPORT_SYMBOL's:
- irlmp.c: sysctl_discovery_timeout
- irlmp.c: irlmp_reasons
- irlmp.c: irlmp_dup
- irqueue.c: hashbin_find_next
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
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