Messages in this thread Patch in this message | | | From | Jess Frazelle <> | Subject | [PATCH v2 5/5] x86: set msi_domain_ops as __ro_after_init | Date | Fri, 10 Feb 2017 17:37:58 -0800 |
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Marked msi_domain_ops structs as __ro_after_init when called only during init. This protects the data structure from accidental corruption.
Suggested-by: Kees Cook <keescook@chromium.org> Signed-off-by: Jess Frazelle <me@jessfraz.com> --- arch/x86/kernel/apic/msi.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c index 015bbf30e3e3..27783a1e7166 100644 --- a/arch/x86/kernel/apic/msi.c +++ b/arch/x86/kernel/apic/msi.c @@ -121,7 +121,7 @@ void pci_msi_set_desc(msi_alloc_info_t *arg, struct msi_desc *desc) } EXPORT_SYMBOL_GPL(pci_msi_set_desc);
-static struct msi_domain_ops pci_msi_domain_ops = { +static struct msi_domain_ops pci_msi_domain_ops __ro_after_init = { .get_hwirq = pci_msi_get_hwirq, .msi_prepare = pci_msi_prepare, .set_desc = pci_msi_set_desc, @@ -207,7 +207,7 @@ static int dmar_msi_init(struct irq_domain *domain, return 0; }
-static struct msi_domain_ops dmar_msi_domain_ops = { +static struct msi_domain_ops dmar_msi_domain_ops __ro_after_init = { .get_hwirq = dmar_msi_get_hwirq, .msi_init = dmar_msi_init, }; @@ -304,7 +304,7 @@ static void hpet_msi_free(struct irq_domain *domain, irq_clear_status_flags(virq, IRQ_MOVE_PCNTXT); }
-static struct msi_domain_ops hpet_msi_domain_ops = { +static struct msi_domain_ops hpet_msi_domain_ops __ro_after_init = { .get_hwirq = hpet_msi_get_hwirq, .msi_init = hpet_msi_init, .msi_free = hpet_msi_free, -- 2.11.0
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