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arm64: use shared sysctl constants 

Use shared sysctl variables for zero and one constants, as in
commit eec4844fae ("proc/sysctl: add shared variables for range check")

Fixes: 63f0c60379 ("arm64: Introduce prctl() options to control the tagged user addresses ABI")
Signed-off-by: Matteo Croce <mcroce@redhat.com>
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Matteo Croce 2020-01-24 16:51:27 +01:00 committed by Will Deacon
parent 5cb7a1113f
commit 2c614c1194
1 changed files with 2 additions and 4 deletions
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6
arch/arm64/kernel/process.c
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@ -608,8 +608,6 @@ long get_tagged_addr_ctrl(void)
* only prevents the tagged address ABI enabling via prctl() and does not
* disable it for tasks that already opted in to the relaxed ABI.
*/
static int zero;
static int one = 1;
static struct ctl_table tagged_addr_sysctl_table[] = {
{
@ -618,8 +616,8 @@ static struct ctl_table tagged_addr_sysctl_table[] = {
.data = &tagged_addr_disabled,
.maxlen = sizeof(int),
.proc_handler = proc_dointvec_minmax,
.extra1 = &zero,
.extra2 = &one,
.extra1 = SYSCTL_ZERO,
.extra2 = SYSCTL_ONE,
},
{ }
};