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Message-Id: <20200216171340.6070-1-xypron.glpk@gmx.de>
Date:   Sun, 16 Feb 2020 18:13:40 +0100
From:   Heinrich Schuchardt <xypron.glpk@....de>
To:     Ard Biesheuvel <ardb@...nel.org>
Cc:     linux-efi@...r.kernel.org, linux-kernel@...r.kernel.org,
        Heinrich Schuchardt <xypron.glpk@....de>
Subject: [PATCH 1/1] efi/libstub: function description efi_allocate_pages()

Provide a Sphinx style function description for efi_allocate_pages().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@....de>
---
 drivers/firmware/efi/libstub/mem.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/drivers/firmware/efi/libstub/mem.c b/drivers/firmware/efi/libstub/mem.c
index 5808c8764e64..c6a784ed640f 100644
--- a/drivers/firmware/efi/libstub/mem.c
+++ b/drivers/firmware/efi/libstub/mem.c
@@ -65,8 +65,20 @@ efi_status_t efi_get_memory_map(struct efi_boot_memmap *map)
 	return status;
 }

-/*
- * Allocate at the highest possible address that is not above 'max'.
+/**
+ * efi_allocate_pages() - Allocate memory pages
+ * @size:	minimum number of bytes to allocate
+ * @addr:	On return the address of the first allocated page. The first
+ *		allocated page has alignment EFI_ALLOC_ALIGN which is an
+ *		architecture dependent multiple of the page size.
+ * @max:	the address that the last allocated memory page shall not
+ *		exceed
+ *
+ * Allocate pages as EFI_LOADER_DATA. The allocated pages are aligned according
+ * to EFI_ALLOC_ALIGN. The last allocated page will not exceed the address
+ * given by 'max'.
+ *
+ * Return:	status code
  */
 efi_status_t efi_allocate_pages(unsigned long size, unsigned long *addr,
 				unsigned long max)
--
2.25.0

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