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Remove module bits in the auxiliary bus code since the auxiliary bus
cannot be built as a module and the relevant code is not needed.
Cc: Dave Ertman <david.m.ertman@intel.com>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/161307488980.1896017.15627190714413338196.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If the probe of the auxdrv failed, the device->driver is set to NULL.
During kernel shutdown, the bus shutdown will call auxdrv->shutdown and
cause an invalid ptr dereference. Add check to make sure device->driver is
not NULL before we proceed.
Fixes: 7de3697e9c ("Add auxiliary bus support")
Cc: Dave Ertman <david.m.ertman@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Link: https://lore.kernel.org/r/160710040926.1889434.8840329810698403478.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
For some reason, the original aux bus patch had some really long lines
in a few places, probably due to it being a very long-lived patch in
development by many different people. Fix that up so that the two files
all have the same length lines and function formatting styles.
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Ertman <david.m.ertman@intel.com>
Cc: Fred Oh <fred.oh@linux.intel.com>
Cc: Kiran Patil <kiran.patil@intel.com>
Cc: Leon Romanovsky <leonro@nvidia.com>
Cc: Martin Habets <mhabets@solarflare.com>
Cc: Parav Pandit <parav@mellanox.com>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Cc: Shiraz Saleem <shiraz.saleem@intel.com>
Link: https://lore.kernel.org/r/X8oiSFTpYHw1xE/o@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There's an effort to move the remove() callback in the driver core to
not return an int, as nothing can be done if this function fails. To
make that effort easier, make the aux bus remove function void to start
with so that no users have to be changed sometime in the future.
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Ertman <david.m.ertman@intel.com>
Cc: Fred Oh <fred.oh@linux.intel.com>
Cc: Kiran Patil <kiran.patil@intel.com>
Cc: Leon Romanovsky <leonro@nvidia.com>
Cc: Martin Habets <mhabets@solarflare.com>
Cc: Parav Pandit <parav@mellanox.com>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Cc: Shiraz Saleem <shiraz.saleem@intel.com>
Link: https://lore.kernel.org/r/X8ohB1ks1NK7kPop@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
No need to include slab.h in include/linux/auxiliary_bus.h, as it is not
needed there. Move it to drivers/base/auxiliary.c instead.
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Ertman <david.m.ertman@intel.com>
Cc: Fred Oh <fred.oh@linux.intel.com>
Cc: Kiran Patil <kiran.patil@intel.com>
Cc: Leon Romanovsky <leonro@nvidia.com>
Cc: Martin Habets <mhabets@solarflare.com>
Cc: Parav Pandit <parav@mellanox.com>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Cc: Shiraz Saleem <shiraz.saleem@intel.com>
Link: https://lore.kernel.org/r/X8og8xi3WkoYXet9@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add support for the Auxiliary Bus, auxiliary_device and auxiliary_driver.
It enables drivers to create an auxiliary_device and bind an
auxiliary_driver to it.
The bus supports probe/remove shutdown and suspend/resume callbacks.
Each auxiliary_device has a unique string based id; driver binds to
an auxiliary_device based on this id through the bus.
Co-developed-by: Kiran Patil <kiran.patil@intel.com>
Co-developed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Co-developed-by: Fred Oh <fred.oh@linux.intel.com>
Co-developed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Fred Oh <fred.oh@linux.intel.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Shiraz Saleem <shiraz.saleem@intel.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Martin Habets <mhabets@solarflare.com>
Link: https://lore.kernel.org/r/20201113161859.1775473-2-david.m.ertman@intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Link: https://lore.kernel.org/r/160695681289.505290.8978295443574440604.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
