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From: AKASHI Takahiro <takahiro.akashi@linaro.org>
To: catalin.marinas@arm.com, will.deacon@arm.com,
	dhowells@redhat.com, vgoyal@redhat.com,
	herbert@gondor.apana.org.au, davem@davemloft.net,
	dyoung@redhat.com, bhe@redhat.com, arnd@arndb.de,
	schwidefsky@de.ibm.com, heiko.carstens@de.ibm.com
Cc: prudo@linux.ibm.com, ard.biesheuvel@linaro.org,
	james.morse@arm.com, bhsharma@redhat.com,
	kexec@lists.infradead.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	AKASHI Takahiro <takahiro.akashi@linaro.org>
Subject: [PATCH v16 14/16] include: pe.h: remove message[] from mz header definition
Date: Thu, 15 Nov 2018 14:52:53 +0900	[thread overview]
Message-ID: <20181115055254.2812-15-takahiro.akashi@linaro.org> (raw)
In-Reply-To: <20181115055254.2812-1-takahiro.akashi@linaro.org>

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(-)

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 {
-- 
2.19.0


  parent reply	other threads:[~2018-11-15  5:53 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-15  5:52 [PATCH v16 00/16] arm64: kexec: add kexec_file_load() support AKASHI Takahiro
2018-11-15  5:52 ` [PATCH v16 01/16] asm-generic: add kexec_file_load system call to unistd.h AKASHI Takahiro
2018-11-15  5:52 ` [PATCH v16 02/16] kexec_file: make kexec_image_post_load_cleanup_default() global AKASHI Takahiro
2018-11-15  5:52 ` [PATCH v16 03/16] s390, kexec_file: drop arch_kexec_mem_walk() AKASHI Takahiro
2018-11-15  5:52 ` [PATCH v16 04/16] powerpc, kexec_file: factor out memblock-based arch_kexec_walk_mem() AKASHI Takahiro
2018-11-15  5:52 ` [PATCH v16 05/16] kexec_file: kexec_walk_memblock() only walks a dedicated region at kdump AKASHI Takahiro
2018-11-15  5:52 ` [PATCH v16 06/16] lib: fdt: add a helper function for handling memory range property AKASHI Takahiro
2018-11-30 13:21   ` Will Deacon
2018-12-06 14:47   ` Rob Herring
2018-12-06 15:54     ` Will Deacon
2018-12-07 10:12       ` James Morse
2018-12-11  6:17         ` AKASHI, Takahiro
2018-12-11 10:09           ` James Morse
2018-12-12  1:28             ` AKASHI, Takahiro
2018-11-15  5:52 ` [PATCH v16 07/16] arm64: add image head flag definitions AKASHI Takahiro
2018-11-15  5:52 ` [PATCH v16 08/16] arm64: cpufeature: add MMFR0 helper functions AKASHI Takahiro
2018-11-15  5:52 ` [PATCH v16 09/16] arm64: enable KEXEC_FILE config AKASHI Takahiro
2018-11-15  5:52 ` [PATCH v16 10/16] arm64: kexec_file: load initrd and device-tree AKASHI Takahiro
2018-11-15  5:52 ` [PATCH v16 11/16] arm64: kexec_file: allow for loading Image-format kernel AKASHI Takahiro
2018-11-15  5:52 ` [PATCH v16 12/16] arm64: kexec_file: add crash dump support AKASHI Takahiro
2018-11-15  5:52 ` [PATCH v16 13/16] arm64: kexec_file: invoke the kernel without purgatory AKASHI Takahiro
2018-11-15  5:52 ` AKASHI Takahiro [this message]
2018-11-15  5:52 ` [PATCH v16 15/16] arm64: kexec_file: add kernel signature verification support AKASHI Takahiro
2018-11-30 13:21   ` Will Deacon
2018-12-11  5:42     ` AKASHI Takahiro
2018-11-15  5:52 ` [PATCH v16 16/16] arm64: kexec_file: add kaslr support AKASHI Takahiro
2018-11-30 13:19   ` Will Deacon
2018-12-11  5:50     ` AKASHI Takahiro
2018-12-11  7:51       ` AKASHI Takahiro

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