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[v2,35/39] efi: Mention that efi_info_get() is only used in the stub

Message ID 20210925003055.759305-20-sjg@chromium.org
State Superseded
Delegated to: Heinrich Schuchardt
Headers show
Series efi: Improvements to U-Boot running on top of UEFI | expand

Commit Message

Simon Glass Sept. 25, 2021, 12:30 a.m. UTC 
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>
---

Changes in v2:
- Fix 'as' typo

 include/efi.h | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/include/efi.h b/include/efi.h
index e04ef942161..8198394e7e0 100644
--- a/include/efi.h
+++ b/include/efi.h
@@ -580,6 +580,10 @@  void efi_putc(struct efi_priv *priv, const char ch);
 /**
  * efi_info_get() - get an entry from an EFI table
  *
+ * This 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 stuff, 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