[Patch Part1 v8 25/37] x86/MSI: Replace msi_update_msg() with irq_chip_compose_msi_msg()

Jiang Liu
2015-04-13T06:15:05Z

Function irq_chip_compose_msi_msg() can achieve the same goal as
msi_update_msg(), so kill msi_update_msg().

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Link: http://lkml.kernel.org/r/1416894816-23245-26-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/x86/kernel/apic/msi.c | 19 ++-----------------
1 file changed, 2 insertions(+), 17 deletions(-)

diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c
index 8e8f2435f25e..15429aa112fe 100644
--- a/arch/x86/kernel/apic/msi.c
+++ b/arch/x86/kernel/apic/msi.c
@@ -53,19 +53,6 @@ static void irq_msi_compose_msg(struct irq_data *data, struct msi_msg *msg)
MSI_DATA_VECTOR(cfg->vector);
}

-static void msi_update_msg(struct msi_msg *msg, struct irq_data *irq_data)
-{
- struct irq_cfg *cfg = irqd_cfg(irq_data);
-
- msg->data &= ~MSI_DATA_VECTOR_MASK;
- msg->data |= MSI_DATA_VECTOR(cfg->vector);
- msg->address_lo &= ~MSI_ADDR_DEST_ID_MASK;
- msg->address_lo |= MSI_ADDR_DEST_ID(cfg->dest_apicid);
- if (x2apic_enabled())
- msg->address_hi = MSI_ADDR_BASE_HI |
- MSI_ADDR_EXT_DEST_ID(cfg->dest_apicid);
-}
-
/*
* IRQ Chip for MSI PCI/PCI-X/PCI-Express Devices,
* which implement the MSI or MSI-X Capability Structure.
@@ -198,8 +185,7 @@ dmar_msi_set_affinity(struct irq_data *data, const struct cpumask *mask,

ret = parent->chip->irq_set_affinity(parent, mask, force);
if (ret >= 0) {
- dmar_msi_read(data->irq, &msg);
- msi_update_msg(&msg, data);
+ irq_chip_compose_msi_msg(data, &msg);
dmar_msi_write(data->irq, &msg);
}

@@ -329,8 +315,7 @@ static int hpet_msi_set_affinity(struct irq_data *data,

ret = parent->chip->irq_set_affinity(parent, mask, force);
if (ret >= 0 && ret != IRQ_SET_MASK_OK_DONE) {
- hpet_msi_read(data->handler_data, &msg);
- msi_update_msg(&msg, data);
+ irq_chip_compose_msi_msg(data, &msg);
hpet_msi_write(data->handler_data, &msg);
}

--
1.7.10.4