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| author |   Douglas Anderson <dianders@chromium.org> | 2023-09-06 09:03:02 -0700 |
|---|---|---|
| committer |   Catalin Marinas <catalin.marinas@arm.com> | 2023-09-25 17:15:29 +0100 |
| commit | 62817d5ba25d2361488184f85d628b5b540e254b (patch) | |
| tree | 55a78f119197899072d084b28ab353ef6e052865 /arch/arm64/kernel/smp.c | |
| parent | arm64: kgdb: Implement kgdb_roundup_cpus() to enable pseudo-NMI roundup (diff) | |
| download | wireguard-linux-62817d5ba25d2361488184f85d628b5b540e254b.tar.xz wireguard-linux-62817d5ba25d2361488184f85d628b5b540e254b.zip | |
arm64: smp: Mark IPI globals as __ro_after_init
Mark the three IPI-related globals in smp.c as "__ro_after_init" since
they are only ever set in set_smp_ipi_range(), which is marked
"__init". This is a better and more secure marking than the old
"__read_mostly".
Suggested-by: Stephen Boyd <swboyd@chromium.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20230906090246.v13.7.I625d393afd71e1766ef73d3bfaac0b347a4afd19@changeid
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/kernel/smp.c')
| -rw-r--r-- | arch/arm64/kernel/smp.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index 1a53e57c81d0..814d9aa93b21 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -84,9 +84,9 @@ enum ipi_msg_type { MAX_IPI }; -static int ipi_irq_base __read_mostly; -static int nr_ipi __read_mostly = NR_IPI; -static struct irq_desc *ipi_desc[MAX_IPI] __read_mostly; +static int ipi_irq_base __ro_after_init; +static int nr_ipi __ro_after_init = NR_IPI; +static struct irq_desc *ipi_desc[MAX_IPI] __ro_after_init; static void ipi_setup(int cpu); |