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[v16,14/16] include: pe.h: remove message[] from mz header definition

Message ID 20181115055254.2812-15-takahiro.akashi@linaro.org
State Accepted
Commit 702ed5bb75306c030ab6598b24b56ba8d21a48dd
Headers show
Series [v16,01/16] asm-generic: add kexec_file_load system call to unistd.h | expand

Commit Message

AKASHI Takahiro Nov. 15, 2018, 5:52 a.m. UTC 
message[] field won't be part of the definition of mz header.

This change is crucial for enabling kexec_file_load on arm64 because
arm64's "Image" binary, as in PE format, doesn't have any data for it and
accordingly the following check in pefile_parse_binary() will fail:

	chkaddr(cursor, mz->peaddr, sizeof(*pe));

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>

Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>

Cc: David Howells <dhowells@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David S. Miller <davem@davemloft.net>
---
 include/linux/pe.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
2.19.0
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Patch

diff --git a/include/linux/pe.h b/include/linux/pe.h
index 143ce75be5f0..3482b18a48b5 100644
--- a/include/linux/pe.h
+++ b/include/linux/pe.h
@@ -166,7 +166,7 @@  struct mz_hdr {
 	uint16_t oem_info;	/* oem specific */
 	uint16_t reserved1[10];	/* reserved */
 	uint32_t peaddr;	/* address of pe header */
-	char     message[64];	/* message to print */
+	char     message[];	/* message to print */
 };
 
 struct mz_reloc {