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* [PATCH v2 1/8] efi: libstub: drop pointless get_memory_map() call
       [not found] <20220920183554.3870247-1-ardb@kernel.org>
@ 2022-09-20 18:35 ` Ard Biesheuvel
  0 siblings, 0 replies; only message in thread
From: Ard Biesheuvel @ 2022-09-20 18:35 UTC (permalink / raw)
  To: linux-efi
  Cc: loongarch, Ard Biesheuvel, Arnd Bergmann, Ilias Apalodimas,
	Huacai Chen, Xi Ruoyao, stable

Currently, the non-x86 stub code calls get_memory_map() redundantly,
given that the data it returns is never used anywhere. So drop the call.

Cc: <stable@vger.kernel.org> # v4.14+
Fixes: 24d7c494ce46 ("efi/arm-stub: Round up FDT allocation to mapping size")
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
---
 drivers/firmware/efi/libstub/fdt.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/drivers/firmware/efi/libstub/fdt.c b/drivers/firmware/efi/libstub/fdt.c
index fe567be0f118..804f542be3f2 100644
--- a/drivers/firmware/efi/libstub/fdt.c
+++ b/drivers/firmware/efi/libstub/fdt.c
@@ -280,14 +280,6 @@ efi_status_t allocate_new_fdt_and_exit_boot(void *handle,
 		goto fail;
 	}
 
-	/*
-	 * Now that we have done our final memory allocation (and free)
-	 * we can get the memory map key needed for exit_boot_services().
-	 */
-	status = efi_get_memory_map(&map);
-	if (status != EFI_SUCCESS)
-		goto fail_free_new_fdt;
-
 	status = update_fdt((void *)fdt_addr, fdt_size,
 			    (void *)*new_fdt_addr, MAX_FDT_SIZE, cmdline_ptr,
 			    initrd_addr, initrd_size);
-- 
2.35.1


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2022-09-20 18:35 ` [PATCH v2 1/8] efi: libstub: drop pointless get_memory_map() call Ard Biesheuvel

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