diff options
| author | Masahiro Yamada <masahiroy@kernel.org> | 2020-04-22 01:13:55 +0900 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2020-04-23 10:50:26 +0900 |
| commit | 62d0fd591db1f9dcf68fb963b3a94af085a6b166 (patch) | |
| tree | 0e9d37a3d85d5528e9bcd5cfee97fd751994ce60 /arch/arc | |
| parent | 3d4b2238684ac919394eba7fb51bb7eeeec6ab57 (diff) | |
| download | lwn-62d0fd591db1f9dcf68fb963b3a94af085a6b166.tar.gz lwn-62d0fd591db1f9dcf68fb963b3a94af085a6b166.zip | |
arch: split MODULE_ARCH_VERMAGIC definitions out to <asm/vermagic.h>
As the bug report [1] pointed out, <linux/vermagic.h> must be included
after <linux/module.h>.
I believe we should not impose any include order restriction. We often
sort include directives alphabetically, but it is just coding style
convention. Technically, we can include header files in any order by
making every header self-contained.
Currently, arch-specific MODULE_ARCH_VERMAGIC is defined in
<asm/module.h>, which is not included from <linux/vermagic.h>.
Hence, the straight-forward fix-up would be as follows:
|--- a/include/linux/vermagic.h
|+++ b/include/linux/vermagic.h
|@@ -1,5 +1,6 @@
| /* SPDX-License-Identifier: GPL-2.0 */
| #include <generated/utsrelease.h>
|+#include <linux/module.h>
|
| /* Simply sanity version stamp for modules. */
| #ifdef CONFIG_SMP
This works enough, but for further cleanups, I split MODULE_ARCH_VERMAGIC
definitions into <asm/vermagic.h>.
With this, <linux/module.h> and <linux/vermagic.h> will be orthogonal,
and the location of MODULE_ARCH_VERMAGIC definitions will be consistent.
For arc and ia64, MODULE_PROC_FAMILY is only used for defining
MODULE_ARCH_VERMAGIC. I squashed it.
For hexagon, nds32, and xtensa, I removed <asm/modules.h> entirely
because they contained nothing but MODULE_ARCH_VERMAGIC definition.
Kbuild will automatically generate <asm/modules.h> at build-time,
wrapping <asm-generic/module.h>.
[1] https://lore.kernel.org/lkml/20200411155623.GA22175@zn.tnic
Reported-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Jessica Yu <jeyu@kernel.org>
Diffstat (limited to 'arch/arc')
| -rw-r--r-- | arch/arc/include/asm/module.h | 5 | ||||
| -rw-r--r-- | arch/arc/include/asm/vermagic.h | 8 |
2 files changed, 8 insertions, 5 deletions
diff --git a/arch/arc/include/asm/module.h b/arch/arc/include/asm/module.h index 48f13a4ace4b..f534a1fef070 100644 --- a/arch/arc/include/asm/module.h +++ b/arch/arc/include/asm/module.h @@ -3,7 +3,6 @@ * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) * * Amit Bhor, Sameer Dhavale: Codito Technologies 2004 - */ #ifndef _ASM_ARC_MODULE_H @@ -19,8 +18,4 @@ struct mod_arch_specific { const char *secstr; }; -#define MODULE_PROC_FAMILY "ARC700" - -#define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY - #endif /* _ASM_ARC_MODULE_H */ diff --git a/arch/arc/include/asm/vermagic.h b/arch/arc/include/asm/vermagic.h new file mode 100644 index 000000000000..a10257d2c62c --- /dev/null +++ b/arch/arc/include/asm/vermagic.h @@ -0,0 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef _ASM_VERMAGIC_H +#define _ASM_VERMAGIC_H + +#define MODULE_ARCH_VERMAGIC "ARC700" + +#endif /* _ASM_VERMAGIC_H */ |