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efi: Mention that efi_info_get() is only used in the stub

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This provides access to EFI tables after U-Boot has exited boot services.
It is not needed in the app since boot services remain alive and we can
just call them whenever needed.

Add a comment to explain this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
This commit is contained in:
Simon Glass 2021-12-29 11:57:48 -07:00 committed by Heinrich Schuchardt
parent bc53a35ac5
commit cf376037e2
1 changed files with 4 additions and 0 deletions
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4
include/efi.h
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@ -566,6 +566,10 @@ void efi_putc(struct efi_priv *priv, const char ch);
/**
* efi_info_get() - get an entry from an EFI table
*
* This function is called from U-Boot proper to read information set up by the
* EFI stub. It can only be used when running from the EFI stub, not when U-Boot
* is running as an app.
*
* @type: Entry type to search for
* @datap: Returns pointer to entry data
* @sizep: Returns pointer to entry size