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| author |   Lee, Chun-Yi <joeyli.kernel@gmail.com> | 2014-07-09 18:39:29 +0800 |
|---|---|---|
| committer |   Matt Fleming <matt.fleming@intel.com> | 2014-07-18 21:24:01 +0100 |
| commit | 28d54022e6ff9c16bf4dacb5f64a97443a38caa9 (patch) | |
| tree | 5ff5e9d5cce511c27864baadf442dfacd920b5ee /drivers/firmware/efi/efivars.c | |
| parent | efi: Update stale locking comment for struct efivars (diff) | |
| download | linux-dev-28d54022e6ff9c16bf4dacb5f64a97443a38caa9.tar.xz linux-dev-28d54022e6ff9c16bf4dacb5f64a97443a38caa9.zip | |
efi: Autoload efivars
The original patch is from Ben Hutchings's contribution to debian
kernel. Got Ben's permission to remove the code of efi-pstore.c and
send to linux-efi:
https://github.com/BlankOn/linux-debian/blob/master/debian/patches/features/all/efi-autoload-efivars.patch
efivars is generally useful to have on EFI systems, and in some cases
it may be impossible to load it after a kernel upgrade in order to
complete a boot loader update. At the same time we don't want to waste
memory on non-EFI systems by making them built-in.
Instead, give them module aliases as if they are platform drivers, and
register a corresponding platform device whenever EFI runtime services
are available. This should trigger udev to load them.
Signed-off-by: Lee, Chun-Yi <jlee@suse.com>
Cc: Ben Hutchings <ben@decadent.org.uk>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Diffstat (limited to 'drivers/firmware/efi/efivars.c')
| -rw-r--r-- | drivers/firmware/efi/efivars.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/firmware/efi/efivars.c b/drivers/firmware/efi/efivars.c index 463c56545ae8..f256ecd8a176 100644 --- a/drivers/firmware/efi/efivars.c +++ b/drivers/firmware/efi/efivars.c @@ -78,6 +78,7 @@ MODULE_AUTHOR("Matt Domsch <Matt_Domsch@Dell.com>"); MODULE_DESCRIPTION("sysfs interface to EFI Variables"); MODULE_LICENSE("GPL"); MODULE_VERSION(EFIVARS_VERSION); +MODULE_ALIAS("platform:efivars"); LIST_HEAD(efivar_sysfs_list); EXPORT_SYMBOL_GPL(efivar_sysfs_list); |