Commit Graph

418 Commits

Author SHA1 Message Date
Linus Torvalds
e70140ba0d Get rid of 'remove_new' relic from platform driver struct
The continual trickle of small conversion patches is grating on me, and
is really not helping.  Just get rid of the 'remove_new' member
function, which is just an alias for the plain 'remove', and had a
comment to that effect:

  /*
   * .remove_new() is a relic from a prototype conversion of .remove().
   * New drivers are supposed to implement .remove(). Once all drivers are
   * converted to not use .remove_new any more, it will be dropped.
   */

This was just a tree-wide 'sed' script that replaced '.remove_new' with
'.remove', with some care taken to turn a subsequent tab into two tabs
to make things line up.

I did do some minimal manual whitespace adjustment for places that used
spaces to line things up.

Then I just removed the old (sic) .remove_new member function, and this
is the end result.  No more unnecessary conversion noise.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-12-01 15:12:43 -08:00
Hongbo Li
75df38aaf1 parisc: pdc_stable: Constify struct kobj_type
This 'struct kobj_type' is not modified. It is only used in
kobject_init_and_add() which takes a 'const struct kobj_type *ktype'
parameter.

Constifying this structure and moving it to a read-only section,
and can increase over all security.

Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Signed-off-by: Helge Deller <deller@gmx.de>
2024-09-09 08:53:17 +02:00
Suren Baghdasaryan
8a2f118787 change alloc_pages name in dma_map_ops to avoid name conflicts
After redefining alloc_pages, all uses of that name are being replaced. 
Change the conflicting names to prevent preprocessor from replacing them
when it's not intended.

Link: https://lkml.kernel.org/r/20240321163705.3067592-18-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Tested-by: Kees Cook <keescook@chromium.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Alex Gaynor <alex.gaynor@gmail.com>
Cc: Alice Ryhl <aliceryhl@google.com>
Cc: Andreas Hindborg <a.hindborg@samsung.com>
Cc: Benno Lossin <benno.lossin@proton.me>
Cc: "Björn Roy Baron" <bjorn3_gh@protonmail.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Gary Guo <gary@garyguo.net>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Miguel Ojeda <ojeda@kernel.org>
Cc: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Wedson Almeida Filho <wedsonaf@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-04-25 20:55:53 -07:00
Uwe Kleine-König
26dd48780b parisc: led: Convert to platform remove callback returning void
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.

To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
2024-03-08 10:00:07 +01:00
Helge Deller
6472036581 parisc/power: Fix power soft-off button emulation on qemu
Make sure to start the kthread to check the power button on qemu as
well if the power button address was provided.
This fixes the qemu built-in system_powerdown runtime command.

Fixes: d0c2194729 ("parisc/power: Add power soft-off when running on qemu")
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v6.0+
2024-01-07 22:59:16 +01:00
Helge Deller
6ad6e15a9c parisc/power: Fix power soft-off when running on qemu
Firmware returns the physical address of the power switch,
so need to use gsc_writel() instead of direct memory access.

Fixes: d0c2194729 ("parisc/power: Add power soft-off when running on qemu")
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v6.0+
2023-11-18 18:59:30 +01:00
Helge Deller
fe0a9b8b22 parisc/power: Trivial whitespace cleanups and license update
Signed-off-by: Helge Deller <deller@gmx.de>
2023-10-30 14:54:40 +01:00
Helge Deller
d0c2194729 parisc/power: Add power soft-off when running on qemu
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v6.0+
2023-10-30 14:54:40 +01:00
Helge Deller
58ad89e866 parisc: sba-iommu: Fix comment when calculating IOC number
Signed-off-by: Helge Deller <deller@gmx.de>
2023-10-30 14:54:40 +01:00
Helge Deller
927c6c8aa2 parisc: iosapic.c: Fix sparse warnings
Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-31 21:42:42 +02:00
Helge Deller
9a47a710cf parisc: ccio-dma: Fix sparse warnings
Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-31 21:42:42 +02:00
Helge Deller
c1ebb94071 parisc: sba-iommu: Fix sparse warnigs
Fix sparse warnings, as pdir is __le64 *.

Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-31 21:42:42 +02:00
Helge Deller
6428bc7bd3 parisc: sba_iommu: Fix build warning if procfs if disabled
Clean up the code, e.g. make proc_mckinley_root static, drop the now
empty mckinley header file and remove some unneeded ifdefs around procfs
functions.

Signed-off-by: Helge Deller <deller@gmx.de>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202308300800.Jod4sHzM-lkp@intel.com/
Fixes: 77e0ddf097 ("parisc: ccio-dma: Create private runway procfs root entry")
2023-08-31 21:42:42 +02:00
Helge Deller
77e0ddf097 parisc: ccio-dma: Create private runway procfs root entry
Create an own procfs "runway" root entry for the CCIO driver.
No need to share it with the sba_iommu driver, as only one
of those busses can be active in one machine anyway.

Signed-off-by: Helge Deller <deller@gmx.de>
Reported-by: kernel test robot <lkp@intel.com>
Fixes: 547259580d ("parisc: Move proc_mckinley_root and proc_runway_root to sba_iommu")
Cc: <stable@vger.kernel.org> # v6.5
2023-08-28 18:00:27 +02:00
Helge Deller
789e527adf parisc: led: Rewrite LED/LCD driver to utilizize Linux LED subsystem
Rewrite the whole driver and drop the own code to calculate load
average, disk and LAN load. Switch instead to use the in-kernel LED
subsystem, which gives us quite some advantages, e.g.
- existing triggers for heartbeat and disk/lan activity can be used
- users can configre the LEDs at will to any existing trigger via
  /sys/class/leds
- less overhead since we don't need to run own timers
- fully integrated in Linux and as such cleaner code.

Note that the driver now depends on CONFIG_LEDS_CLASS which has to
be built-in and not as module.

Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-28 17:58:14 +02:00
Helge Deller
d75ef5994d parisc: lasi: Initialize LASI driver via arch_initcall()
Move initialization code for LASI out of the GSC driver.
Since ASP and WAX have been moved in previous commits,
the GSC driver is now just a driver which provides library
functions for LASI, ASP and WAX and as such doesn't need
an own initialization function any longer.

Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-27 11:09:10 +02:00
Helge Deller
ff0e833e98 parisc: asp: Initialize asp driver via arch_initcall()
Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-27 11:09:10 +02:00
Helge Deller
ac65d9c90e parisc: wax: Initialize wax driver via arch_initcall()
Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-27 11:09:10 +02:00
Helge Deller
9c2ca106c9 parisc: iosapic: Convert I/O Sapic driver to use arch_initcall()
Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-27 10:54:10 +02:00
Helge Deller
53861a915a parisc: sba_iommu: Convert SBA IOMMU driver to use arch_initcall()
Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-27 09:38:32 +02:00
Helge Deller
3b425dd2ae parisc: led: Move register_led_regions() to late_initcall()
Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-27 09:36:23 +02:00
Helge Deller
df3f93596c parisc: lba: Convert LBA PCI bus driver to use arch_initcall()
Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-27 09:25:48 +02:00
Helge Deller
ba8723b1ed parisc: gsc: Convert GSC bus driver to use arch_initcall()
This conversion includes LASI, ASP and WAX drivers for now.

Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-27 09:17:37 +02:00
Helge Deller
63c1ce56ab parisc: ccio: Convert CCIO driver to use arch_initcall()
Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-27 09:17:37 +02:00
Helge Deller
5f4f870a44 parisc: eisa: Convert HP EISA bus driver to use arch_initcall()
Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-27 09:17:37 +02:00