linux_dsm_epyc7002/include
Rafael J. Wysocki d7b1956fed DMI: Introduce dmi_first_match to make the interface more flexible
Some notebooks from HP have the problem that their BIOSes attempt to
spin down hard drives before entering ACPI system states S4 and S5.
This leads to a yo-yo effect during system power-off shutdown and the
last phase of hibernation when the disk is first spun down by the
kernel and then almost immediately turned on and off by the BIOS.
This, in turn, may result in shortening the disk's life times.

To prevent this from happening we can blacklist the affected systems
using DMI information.  However, only the on-board controlles should
be blacklisted and their PCI slot numbers can be used for this
purpose.  Unfortunately the existing interface for checking DMI
information of the system is not very convenient for this purpose,
because to use it, we would have to define special callback functions
or create a separate struct dmi_system_id table for each blacklisted
system.

To overcome this difficulty introduce a new function
dmi_first_match() returning a pointer to the first entry in an array
of struct dmi_system_id elements that matches the system DMI
information.  Then, we can use this pointer to access the entry's
.driver_data field containing the additional information, such as
the PCI slot number, allowing us to do the desired blacklisting.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-01-27 02:15:47 -05:00
..
acpi ACPI: fix ACPI_FADT_S4_RTC_WAKE comment 2009-01-16 14:32:17 -05:00
asm-arm
asm-frv byteorder: make swab.h include asm/swab.h like a regular header 2009-01-14 19:56:50 -08:00
asm-generic alpha: fix RTC on marvel 2009-01-15 16:39:40 -08:00
asm-h8300
asm-m32r byteorder: make swab.h include asm/swab.h like a regular header 2009-01-14 19:56:50 -08:00
asm-m68k byteorder: make swab.h include asm/swab.h like a regular header 2009-01-14 19:56:50 -08:00
asm-mn10300 byteorder: make swab.h include asm/swab.h like a regular header 2009-01-14 19:56:50 -08:00
crypto crypto: aes - Precompute tables 2008-12-25 11:05:13 +11:00
drm drm: initial KMS config fixes 2009-01-16 18:40:54 +10:00
keys
linux DMI: Introduce dmi_first_match to make the interface more flexible 2009-01-27 02:15:47 -05:00
math-emu
media V4L/DVB (10141): v4l2: debugging API changed to match against driver name instead of ID. 2009-01-02 17:11:52 -02:00
mtd trivial: fix then -> than typos in comments and documentation 2009-01-06 11:28:06 +01:00
net wimax: fix typo in kernel-doc for debugfs_dentry in struct wimax_dev 2009-01-11 00:06:32 -08:00
pcmcia
rdma
rxrpc
scsi [SCSI] iscsi_tcp: make padbuf non-static 2009-01-13 10:41:34 -06:00
sound Merge branch 'topic/asoc' into for-linus 2009-01-12 14:05:50 +01:00
trace sched, trace: update trace_sched_wakeup() 2008-12-25 13:10:21 +01:00
video video: sh_mobile_lcdcfb deferred io support 2008-12-22 18:44:48 +09:00
xen xen: add xenfs to allow usermode <-> Xen interaction 2009-01-08 08:30:59 -08:00
Kbuild