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arm64: smccc: use asm EXPORT_SYMBOL() 

For a while now it's been possible to use EXPORT_SYMBOL() in assembly
files, which allows us to place exports immediately after assembly
functions, as we do for C functions.

As a step towards removing arm64ksyms.c, let's move the SMCCC exports to
the assembly file the functions are defined in.

There should be no functional change as a result of this patch.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Mark Rutland 2018-12-07 18:08:18 +00:00 committed by Will Deacon
parent abb77f3d96
commit 23fe04c0c5
2 changed files with 4 additions and 5 deletions
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5
arch/arm64/kernel/arm64ksyms.c
View File

@ -26,7 +26,6 @@
#include <linux/syscalls.h>
#include <linux/uaccess.h>
#include <linux/io.h>
#include <linux/arm-smccc.h>
#include <linux/kprobes.h>
#include <asm/checksum.h>
@ -64,7 +63,3 @@ EXPORT_SYMBOL(_mcount);
NOKPROBE_SYMBOL(_mcount);
#endif
/* arm-smccc */
EXPORT_SYMBOL(__arm_smccc_smc);
EXPORT_SYMBOL(__arm_smccc_hvc);

4
arch/arm64/kernel/smccc-call.S
View File

@ -13,7 +13,9 @@
*/
#include <linux/linkage.h>
#include <linux/arm-smccc.h>
#include <asm/asm-offsets.h>
#include <asm/assembler.h>
.macro SMCCC instr
.cfi_startproc
@ -40,6 +42,7 @@
ENTRY(__arm_smccc_smc)
SMCCC smc
ENDPROC(__arm_smccc_smc)
EXPORT_SYMBOL(__arm_smccc_smc)
/*
* void arm_smccc_hvc(unsigned long a0, unsigned long a1, unsigned long a2,
@ -50,3 +53,4 @@ ENDPROC(__arm_smccc_smc)
ENTRY(__arm_smccc_hvc)
SMCCC hvc
ENDPROC(__arm_smccc_hvc)
EXPORT_SYMBOL(__arm_smccc_hvc)