alistair23-linux/drivers/firmware
Jeremy Kerr 0c542edde3 efi: Handle deletions and size changes in efivarfs_write_file
A write to an efivarfs file will not always result in a variable of
'count' size after the EFI SetVariable() call. We may have appended to
the existing data (ie, with the EFI_VARIABLE_APPEND_WRITE attribute), or
even have deleted the variable (with an authenticated variable update,
with a zero datasize).

This change re-reads the updated variable from firmware, to check for
size changes and deletions. In the latter case, we need to drop the
dentry.

Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2012-10-30 10:39:17 +00:00
..
google firmware: google: fix gsmi.c build warning 2011-12-09 16:23:49 -08:00
dcdbas.c dcdbas: force SMI to happen when expected 2011-03-02 13:42:10 +01:00
dcdbas.h
dell_rbu.c
dmi-id.c
dmi-sysfs.c firmware: Fix unaligned memory accesses in dmi-sysfs 2011-02-25 16:10:03 -08:00
dmi_scan.c dmi: Feed DMI table to /dev/random driver 2012-07-24 13:16:41 -04:00
edd.c [SCSI] edd: Treat "XPRS" host bus type the same as "PCI" 2011-10-31 13:26:19 +04:00
efivars.c efi: Handle deletions and size changes in efivarfs_write_file 2012-10-30 10:39:17 +00:00
iscsi_ibft.c switch ->is_visible() to returning umode_t 2012-01-03 22:54:55 -05:00
iscsi_ibft_find.c ibft: Fix finding IBFT ACPI table on UEFI 2011-12-13 09:08:31 -05:00
Kconfig ASoC: Move SigmaDSP firmware loader to ASoC 2011-11-29 12:01:10 +00:00
Makefile ASoC: Move SigmaDSP firmware loader to ASoC 2011-11-29 12:01:10 +00:00
memmap.c firmware_map: make firmware_map_add_early() argument consistent with firmware_map_add_hotplug() 2012-07-30 17:25:17 -07:00
pcdp.c pcdp: use early_ioremap/early_iounmap to access pcdp table 2012-07-30 17:25:11 -07:00
pcdp.h