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path: root/drivers/zorro/zorro-driver.c
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2024-02-19zorro: Make zorro_bus_type constRicardo B. Marliere
Since commit d492cc2573a0 ("driver core: device.h: make struct bus_type a const *"), the driver core can properly handle constant struct bus_type, move the zorro_bus_type variable to be a constant structure as well, placing it into read-only memory which can not be modified at runtime. Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20240213-bus_cleanup-zorro-v1-1-388ceed8e7bd@marliere.net Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2023-01-27driver core: make struct bus_type.uevent() take a const *Greg Kroah-Hartman
The uevent() callback in struct bus_type should not be modifying the device that is passed into it, so mark it as a const * and propagate the function signature changes out into all relevant subsystems that use this callback. Acked-by: Rafael J. Wysocki <rafael@kernel.org> Acked-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20230111113018.459199-16-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-05zorro: Drop useless (and hardly used) .driver member in struct zorro_devUwe Kleine-König
The only actual use is to check in zorro_device_probe() that the device isn't already bound. The driver core already ensures this however so the check can go away which allows to drop the then assigned-only member from struct zorro_dev. If the value was indeed needed somewhere it can always be calculated by to_zorro_driver(z->dev.driver) . Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20210730191035.1455248-5-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-05zorro: Simplify remove callbackUwe Kleine-König
The driver core only calls a remove callback when the device was successfully bound (aka probed) before. So dev->driver is never NULL. (And even if it was NULL, to_zorro_driver(NULL) isn't ...) Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20210730191035.1455248-4-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-21bus: Make remove callback return voidUwe Kleine-König
The driver core ignores the return value of this callback because there is only little it can do when a device disappears. This is the final bit of a long lasting cleanup quest where several buses were converted to also return void from their remove callback. Additionally some resource leaks were fixed that were caused by drivers returning an error code in the expectation that the driver won't go away. With struct bus_type::remove returning void it's prevented that newly implemented buses return an ignored error code and so don't anticipate wrong expectations for driver authors. Reviewed-by: Tom Rix <trix@redhat.com> (For fpga) Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org> Reviewed-by: Cornelia Huck <cohuck@redhat.com> (For drivers/s390 and drivers/vfio) Acked-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> (For ARM, Amba and related parts) Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Chen-Yu Tsai <wens@csie.org> (for sunxi-rsb) Acked-by: Pali Rohár <pali@kernel.org> Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org> (for media) Acked-by: Hans de Goede <hdegoede@redhat.com> (For drivers/platform) Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-By: Vinod Koul <vkoul@kernel.org> Acked-by: Juergen Gross <jgross@suse.com> (For xen) Acked-by: Lee Jones <lee.jones@linaro.org> (For mfd) Acked-by: Johannes Thumshirn <jth@kernel.org> (For mcb) Acked-by: Johan Hovold <johan@kernel.org> Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> (For slimbus) Acked-by: Kirti Wankhede <kwankhede@nvidia.com> (For vfio) Acked-by: Maximilian Luz <luzmaximilian@gmail.com> Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> (For ulpi and typec) Acked-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com> (For ipack) Acked-by: Geoff Levand <geoff@infradead.org> (For ps3) Acked-by: Yehezkel Bernat <YehezkelShB@gmail.com> (For thunderbolt) Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> (For intel_th) Acked-by: Dominik Brodowski <linux@dominikbrodowski.net> (For pcmcia) Acked-by: Rafael J. Wysocki <rafael@kernel.org> (For ACPI) Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org> (rpmsg and apr) Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> (For intel-ish-hid) Acked-by: Dan Williams <dan.j.williams@intel.com> (For CXL, DAX, and NVDIMM) Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com> (For isa) Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (For firewire) Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> (For hid) Acked-by: Thorsten Scherer <t.scherer@eckelmann.de> (For siox) Acked-by: Sven Van Asbroeck <TheSven73@gmail.com> (For anybuss) Acked-by: Ulf Hansson <ulf.hansson@linaro.org> (For MMC) Acked-by: Wolfram Sang <wsa@kernel.org> # for I2C Acked-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Finn Thain <fthain@linux-m68k.org> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20210713193522.1770306-6-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-09zorro: Use zorro_match_device() helper in zorro_bus_match()Geert Uytterhoeven
Make zorro_bus_match() use the existing zorro_match_device() helper, instead of open-coding the same operation. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/r/20200112164949.20196-4-geert@linux-m68k.org
2020-03-09zorro: Fix zorro_bus_match() kerneldocGeert Uytterhoeven
The kerneldoc for zorro_bus_match() was obviously copied from zorro_match_device(), but wasnt't updated for the different calling context and semantics. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/r/20200112164949.20196-3-geert@linux-m68k.org
2020-03-09zorro: Make zorro_match_device() staticGeert Uytterhoeven
Unlike its PCI counterpart, zorro_match_device() was never used outside the Zorro bus code. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/r/20200112164949.20196-2-geert@linux-m68k.org
2017-03-17zorro: stop creating attributes by handDmitry Torokhov
Instead of creating attributes one by one, define attribute_group array and attach it to bus->dev_groups, so that all needed attributes are created automatically when a new device is registered on the bus. Also switch to using standard DEVICE_ATTR_RO() macros. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-26zorro: Let the driver core handle device enumerationGeert Uytterhoeven
Filling in dev_name of the Zorro bus type and dev.id of each device allows the driver core to enumerate devices, so we don't have to do that ourselves. This changes the names of devices in sysfs from "%02x" to "zorro%u". Note that filling in dev.id is also needed to support MFD Zorro devices. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2013-01-03Drivers: zorro: remove CONFIG_HOTPLUG usageGreg Kroah-Hartman
CONFIG_HOTPLUG is going away as an option, so remove it from the zorro-driver.c file. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2011-10-24zorro: Fix four checkpatch warningsJim Rotmalm
zorro-driver.c: fix four checkpatch warnings of: WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable I had a cat. The cat was mine. His name was Zorro. Amiga is fine. Signed-off-by: Jim Rotmalm <jim.rotmalm@gmail.com> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2010-05-17m68k: amiga - Zorro bus modalias supportGeert Uytterhoeven
Add Amiga Zorro bus modalias and uevent support Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2009-12-06m68k: don't export static inline functionsStephen Rothwell
These now cause errors due to changes present in linux-next: (__ksymtab_sorted+0x1258): undefined reference to `dio_dev_driver' (__ksymtab_sorted+0x4d48): undefined reference to `zorro_dev_driver' Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2007-11-26Amiga zorro bus: Add missing zorro_device_remove()Geert Uytterhoeven
Amiga zorro bus: Add missing zorro_device_remove(). Without this ifconfig and /proc/net/dev oops after unloading a Zorro network device driver module. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2006-03-25[PATCH] amiga: fix driver_register() return handling, remove zorro_module_init()Bjorn Helgaas
Remove the assumption that driver_register() returns the number of devices bound to the driver. In fact, it returns zero for success or a negative error value. zorro_module_init() used the device count to automatically unregister and unload drivers that found no devices. That might have worked at one time, but has been broken for some time because zorro_register_driver() returned either a negative error or a positive count (never zero). So it could only unregister on failure, when it's not needed anyway. This functionality could be resurrected in individual drivers by counting devices in their .probe() methods. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-13[PATCH] Add zorro_bus_type probe and remove methodsRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-04-16Linux-2.6.12-rc2Linus Torvalds
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!