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asm-generic: export: Stub EXPORT_SYMBOL with __DISABLE_EXPORTS 

It is currently possible to stub EXPORT_SYMBOL() macros in C code using
__DISABLE_EXPORTS, which is necessary to run in constrained environments
such as the EFI stub or the decompressor. But this currently doesn't
apply to exports from assembly, which can lead to somewhat confusing
situations.

Consolidate the __DISABLE_EXPORTS infrastructure by checking it from
asm-generic/export.h as well.

Signed-off-by: Quentin Perret <qperret@google.com>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210203141931.615898-2-qperret@google.com
This commit is contained in:
Quentin Perret 2021-02-03 14:19:30 +00:00 committed by Marc Zyngier
parent 87b26801f0
commit 54effa6532
1 changed files with 1 additions and 1 deletions
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2
include/asm-generic/export.h
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@ -33,7 +33,7 @@
*/
.macro ___EXPORT_SYMBOL name,val,sec
#ifdef CONFIG_MODULES
#if defined(CONFIG_MODULES) && !defined(__DISABLE_EXPORTS)
.section ___ksymtab\sec+\name,"a"
.balign KSYM_ALIGN
__ksymtab_\name: