Hauke Mehrtens [Thu, 26 Jan 2012 22:51:45 +0000 (23:51 +0100)]
compat: move br_port_exists() to compat-2.6.36.h
br_port_exists() was moved to a new compat-*.h file for every new
kernel release, as it is not in mainline. This patch moves it to compat-
2.6.36.h so it has not to be moved any more for a new kernel version.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: Luis R. Rodriguez <mcgrof@frijolero.org>
Hauke Mehrtens [Sat, 3 Dec 2011 14:49:25 +0000 (15:49 +0100)]
compat: add config var for CORDIC and CRC8
Sometimes the kernel version compat-wireless is build against has
support for cordic and crc8 in its source, but these modules were not
build when the kernel was build, because no one selected them. The modules are
needed for the bcmsmac driver and they should be build every time when
they were not already build while the kernel was build.
linux/security.h needs to be included before the dummy function overrides it,
otherwise the macro that redirects it to the compat version will apply to
the kernel function as well, causing multiple conflicting definitions
John W. Linville [Fri, 18 Nov 2011 20:52:44 +0000 (15:52 -0500)]
compat: implement dummy security_sk_clone
This has been defined in include/linux/security.h for some time, but was
only given an EXPORT_SYMBOL for 3.1. Add a compat_* definition to avoid
breaking the module load with an undefined symbol.
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Hauke Mehrtens [Thu, 17 Nov 2011 23:05:45 +0000 (00:05 +0100)]
compat: backport kfree_rcu()
This adds a nested function everywhere kfree_rcu() was called. This
function frees the memory and is given as a function to call_rcu().
The kfree_rcu define was made by Johannes Berg.
The rcu callback could happen every time also after the module was
unloaded and this will cause problems.
A rcu_barrier() was added into every module_exit so that this will not
be called after the module was unloaded.
The define overwriting module_exit is based on the original module_exit
which looks like this:
/* This is only required if you want to be unloadable. */
/#define module_exit(exitfn) \
static inline exitcall_t __exittest(void) \
{ return exitfn; } \
void cleanup_module(void) __attribute__((alias(#exitfn)));
We replaced the call to the actual function exitfn() with a call to our
function which calls the original exitfn() and then rcu_barrier()
As a module will not be unloaded that ofter it should not have a big
performance impact when rcu_barrier() is called on every module exit,
also when no kfree_rcu() backport is used in that module.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> CC: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
John W. Linville [Thu, 17 Nov 2011 22:20:42 +0000 (17:20 -0500)]
compat: support RHEL6 as a build target
This patch enables compatibility with RHEL6 as a build target, mostly
with simple tricks similar to what was added for compatibility with
Debian Squeeze.
Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
John W. Linville [Thu, 17 Nov 2011 22:20:41 +0000 (17:20 -0500)]
compat: check CONFIG_COMPAT_FIRMWARE_CLASS in compat-2.6.33.h
If a pre-2.6.33 kernel has backported suitable firmware loader
functionality, then it doesn't need the compat_firmware_class. In that
case, compat-2.6.33 should not redefine the *_firmware function names.
Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
Some kernels have versions of (struct bin_attribute)->{read,write}
that require a struct file * as their first argument. This change
accommodates them in the firmware loader class.
Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
Hauke Mehrtens [Tue, 8 Nov 2011 20:46:31 +0000 (21:46 +0100)]
compat: add some workarounds for Debian squeeze
Debian squeeze also backports some stuff and this conflicts with compat
wireless stuff. This is a nice way of making compat work with debian
squeeze without breaking normal kernels.
Hauke Mehrtens [Sun, 6 Nov 2011 21:25:03 +0000 (22:25 +0100)]
compat: backport system_nrt_wq
The workqueue system_nrt_wq is not available in kernel version < 2.6.36.
This backport code creates such a queue but this old kernel does not
have WQ_NON_REENTRANT, so we use a single threaded queue instead as it
should meat the same restrictions.
Hauke Mehrtens [Tue, 4 Oct 2011 11:11:47 +0000 (13:11 +0200)]
compat: add linux/of.h just when CONFIG_OF is set.
In kernel < 2.6.34 linux/of.h unconditionally includes asm/prom.h which
is not available on all architectures. In newer kernel versions this is
just included if CONFIG_OF is set. For these old kernel just include
linux/of.h when CONFIG_OF is set. This fixes a compile problem with
ath6kl as it uses linux/of.h only when CONFIG_OF is set.
Hauke Mehrtens [Tue, 23 Aug 2011 11:38:28 +0000 (13:38 +0200)]
compat: pm_qos_params.h was renamed to pm_qos.h
pm_qos.h was renamed to pm_qos_params.h in:
commit 1eee4691c3f058d1cf9757947ad9d9e03145a12c
Author: Jean Pihet <j-pihet@ti.com>
Date: Thu Aug 18 10:31:55 2011 +0200
PM QoS: Move and rename the implementation files
For older kernel versions the old header file should be used instead of the new one.
Pavel Roskin [Wed, 29 Jun 2011 22:01:10 +0000 (18:01 -0400)]
Signed-off-by: Pavel Roskin <proski@gnu.org>
set_irq_probe() and set_irq_probe() are missing on Linux 2.6.24, so the
code won't compile. compat-wireless doesn't need those functions. Keep
the functions for Linux 2.6.25 and newer for other compat packages.
Pavel Roskin [Wed, 29 Jun 2011 20:47:15 +0000 (16:47 -0400)]
Signed-off-by: Pavel Roskin <proski@gnu.org>
Debian backports netdev_name as a function. As we cannot test if a
function is present, use an equivalent macro.
Reported by Sivaraman V <krusna@gmail.com> and Alex <alex9434@gmail.com>
Hauke Mehrtens [Thu, 9 Jun 2011 22:04:44 +0000 (00:04 +0200)]
compat: add device name in register_netdevice(dev)
dev_alloc_name() is not called explicitly in the driver code any more,
but it is done in register_netdevice(). This causes devices getting
wrong names like "wlan%d". With this patch they get names like wlan0
again.
Hauke Mehrtens [Sun, 22 May 2011 10:47:34 +0000 (12:47 +0200)]
compat: remove wrong backport of kfree_rcu
Backporting kfree_rcu() in compat does not work as
struct rcu_head->func is always interpreted as a pointer in older
kernel versions, but when using kfree_rcu() it is set to an offset.
rcu_head->func is used in some functions in the kernel not backported
by compat-wireless.
In older kernel versions in __rcu_reclaim just the else path is available.
compat: do not include kstrto* for kernel >= 2.6.38.4
kstrto* went into kernel 2.6.38.4 and causes conflicts with the version
included in compat-wireless. We use strict_strtol to check if kstrto*
is already available.
kstrto* was not moved to compat-2.6.38.h because kernel version <=
2.6.38.3 needs this backport and some distributions like Ubuntu still
ship an older version of this kernel.
Reported-by: Andreas Hartmann <andihartmann@01019freenet.de> Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
compat/kstrtox.c is copied from lib/kstrtox.c in the Linux kernel.
This is needed by some drivers now.
For kernel < 2.6.26 div_u64 needs to be backported.
We should not copy the files like kstrtox.c, kfifo.c and so on to
compat/ by hand, but copy them when creating compat-wireless along with
the wireless drivers.
Hauke Mehrtens [Thu, 6 Jan 2011 17:16:38 +0000 (18:16 +0100)]
compat: backport kfifo
This is a copy of the hole kfifo implementation from a recent kernel
version. When we ship this implementation we do not have to backport
any kfifo related stuff any more.
Hauke Mehrtens [Sat, 1 Jan 2011 14:23:35 +0000 (06:23 -0800)]
compat: add generic functions for suspend/resume
This define is used to generate a suspend and a resume function for pci
devices using the old power management interface. The new interface was
introduced in kernel 2.6.29.
Hauke Mehrtens [Fri, 17 Dec 2010 22:41:38 +0000 (14:41 -0800)]
compat: backport pci_is_pcie and pci_pcie_cap
compat_is_pcie already did the same thing as pci_is_pcie, but this
method is now in kernel so the mainline drivers should use this
function instead of accessing the member in the struct directly. We
backported this function for older kernels.
pci_pcie_cap is used in rtlwifi so we also need this.
projects / ~emulex / for-vlad / old / compat.git / log