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parisc: Avoid compat syscalls when COMPAT=n

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Drop unnecessary code and syscall tables when we run a 64-bit
kernel with conpat mode disabled.

Signed-off-by: Helge Deller <deller@gmx.de>
This commit is contained in:
Helge Deller
2026-04-08 00:01:28 +02:00
parent da3680f564
commit 97bfda4520
1 changed files with 7 additions and 4 deletions
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11
arch/parisc/kernel/syscall.S
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@@ -241,7 +241,7 @@ linux_gateway_entry:
/* Note! We cannot use the syscall table that is mapped
nearby since the gateway page is mapped execute-only. */
#ifdef CONFIG_64BIT
#ifdef CONFIG_COMPAT
ldil L%sys_call_table, %r1
or,ev %r2,%r2,%r2
ldil L%sys_call_table64, %r1
@@ -250,7 +250,7 @@ linux_gateway_entry:
ldo R%sys_call_table64(%r1), %r19
#else
load32 sys_call_table, %r19
#endif
#endif
comiclr,>> __NR_Linux_syscalls, %r20, %r0
b,n .Lsyscall_nosys
@@ -374,7 +374,7 @@ tracesys_next:
/* Note! We cannot use the syscall table that is mapped
nearby since the gateway page is mapped execute-only. */
#ifdef CONFIG_64BIT
#ifdef CONFIG_COMPAT
LDREG TASK_PT_GR30(%r1), %r19 /* get users sp back */
extrd,u %r19,63,1,%r2 /* W hidden in bottom bit */
@@ -1326,16 +1326,19 @@ ENTRY(lws_table)
END(lws_table)
/* End of lws table */
#ifdef CONFIG_64BIT
#ifdef CONFIG_COMPAT
#define __SYSCALL_WITH_COMPAT(nr, native, compat) __SYSCALL(nr, compat)
#else
#define __SYSCALL_WITH_COMPAT(nr, native, compat) __SYSCALL(nr, native)
#endif
#define __SYSCALL(nr, entry) ASM_ULONG_INSN entry
.align 8
ENTRY(sys_call_table)
.export sys_call_table,data
#if defined(CONFIG_COMPAT) || !defined(CONFIG_64BIT)
#include <asm/syscall_table_32.h> /* 32-bit syscalls */
#endif
END(sys_call_table)
#ifdef CONFIG_64BIT