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David Brownell 49a4ec188f fix hotplug for legacy platform drivers ... We've had various reports of some legacy "probe the hardware" style platform drivers having nasty problems with hotplug support. The core issue is that those legacy drivers don't fully conform to the driver model. They assume a role that should be the responsibility of infrastructure code: creating device nodes. The "modprobe" step in hotplugging relies on drivers to have split those roles into different modules. The lack of this split causes the problems. When a driver creates nodes for devices that don't exist (sending a hotplug event), then exits (aborting one modprobe) before the "modprobe $MODALIAS" step completes (by failing, since it's in the middle of a modprobe), the result can be an endless loop of modprobe invocations ... badness. This fix uses the newish per-device flag controlling issuance of "add" events. (A previous version of this patch used a per-device "driver can hotplug" flag, which only scrubbed $MODALIAS from the environment rather than suppressing the entire hotplug event.) It also shrinks that flag to one bit, saving a word in "struct device". So the net of this patch is removing some nasty failures with legacy drivers, while retaining hotplug capability for the majority of platform drivers. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Greg KH <gregkh@suse.de> Cc: Andres Salomon <dilinger@debian.org> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		18 years ago
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acorn	…
acpi	PNPACPI sets pnpdev->dev.archdata	18 years ago
amba	…
ata	…
atm	…
auxdisplay	…
base	fix hotplug for legacy platform drivers	18 years ago
block	cciss: set rq->errors more correctly in driver	18 years ago
bluetooth	…
cdrom	…
char	dtlk: fix error checks in module_init()	18 years ago
clocksource	…
connector	…
cpufreq	…
crypto	…
dio	…
dma	…
edac	Fix 82875 PCI setup	18 years ago
eisa	…
fc4	…
firmware	…
hid	header cleaning: don't include smp_lock.h when not used	18 years ago
hwmon	…
i2c	header cleaning: don't include smp_lock.h when not used	18 years ago
ide	…
ieee1394	header cleaning: don't include smp_lock.h when not used	18 years ago
infiniband	header cleaning: don't include smp_lock.h when not used	18 years ago
input	header cleaning: don't include smp_lock.h when not used	18 years ago
isdn	header cleaning: don't include smp_lock.h when not used	18 years ago
kvm	…
leds	…
macintosh	header cleaning: don't include smp_lock.h when not used	18 years ago
mca	…
md	…
media	header cleaning: don't include smp_lock.h when not used	18 years ago
message	…
mfd	header cleaning: don't include smp_lock.h when not used	18 years ago
misc	…
mmc	…
mtd	…
net	header cleaning: don't include smp_lock.h when not used	18 years ago
nubus	…
oprofile	…
parisc	header cleaning: don't include smp_lock.h when not used	18 years ago
parport	parport_serial: fix PCI must_checks	18 years ago
pci	header cleaning: don't include smp_lock.h when not used	18 years ago
pcmcia	fix hotplug for legacy platform drivers	18 years ago
pnp	PNPACPI sets pnpdev->dev.archdata	18 years ago
ps3	…
rapidio	…
rtc	…
s390	…
sbus	header cleaning: don't include smp_lock.h when not used	18 years ago
scsi	Replace deprecated SA_xxx interrupt flags	18 years ago
serial	header cleaning: don't include smp_lock.h when not used	18 years ago
sh	…
sn	…
spi	…
tc	…
telephony	…
usb	header cleaning: don't include smp_lock.h when not used	18 years ago
video	header cleaning: don't include smp_lock.h when not used	18 years ago
w1	…
zorro	…
Kconfig	…
Makefile	…