提交 38b9aeb3 编写于 作者: D Dave Martin 提交者: Will Deacon

arm64: Port deprecated instruction emulation to new sysctl interface

Currently, armv8_deprected.c takes charge of the "abi" sysctl
directory, which makes life difficult for other code that wants to
register sysctls in the same directory.

There is a "new" [1] sysctl registration interface that removes the
need to define ctl_tables for parent directories explicitly, which
is ideal here.

This patch ports register_insn_emulation_sysctl() over to the
register_sysctl() interface and removes the redundant ctl_table for
"abi".
Signed-off-by: NDave Martin <Dave.Martin@arm.com>
Reviewed-by: NAlex Bennée <alex.bennee@linaro.org>
Reviewed-by: NCatalin Marinas <catalin.marinas@arm.com>

[1] fea478d4 (sysctl: Add register_sysctl for normal sysctl
users)
The commit message notes an intent to port users of the
pre-existing interfaces over to register_sysctl(), though the
number of users of the new interface currently appears negligible.
Signed-off-by: NWill Deacon <will.deacon@arm.com>
上级 b472db6c
......@@ -228,15 +228,7 @@ static int emulation_proc_handler(struct ctl_table *table, int write,
return ret;
}
static struct ctl_table ctl_abi[] = {
{
.procname = "abi",
.mode = 0555,
},
{ }
};
static void __init register_insn_emulation_sysctl(struct ctl_table *table)
static void __init register_insn_emulation_sysctl(void)
{
unsigned long flags;
int i = 0;
......@@ -262,8 +254,7 @@ static void __init register_insn_emulation_sysctl(struct ctl_table *table)
}
raw_spin_unlock_irqrestore(&insn_emulation_lock, flags);
table->child = insns_sysctl;
register_sysctl_table(table);
register_sysctl("abi", insns_sysctl);
}
/*
......@@ -644,7 +635,7 @@ static int __init armv8_deprecated_init(void)
cpuhp_setup_state_nocalls(CPUHP_AP_ARM64_ISNDEP_STARTING,
"arm64/isndep:starting",
run_all_insn_set_hw_mode, NULL);
register_insn_emulation_sysctl(ctl_abi);
register_insn_emulation_sysctl();
return 0;
}
......
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