@@ -23,7 +23,7 @@ static int ia64_set_msi_irq_affinity(struct irq_data *idata,
if (irq_prepare_move(irq, cpu))
return -1;
- get_cached_msi_msg(irq, &msg);
+ get_cached_msi_msg(idata->msi_desc, &msg);
addr = msg.address_lo;
addr &= MSI_ADDR_DEST_ID_MASK;
@@ -175,8 +175,8 @@ static int sn_set_msi_irq_affinity(struct irq_data *data,
* Release XIO resources for the old MSI PCI address
*/
- get_cached_msi_msg(irq, &msg);
- sn_pdev = (struct pcidev_info *)sn_irq_info->irq_pciioinfo;
+ get_cached_msi_msg(data->msi_desc, &msg);
+ sn_pdev = (struct pcidev_info *)sn_irq_info->irq_pciioinfo;
pdev = sn_pdev->pdi_linux_pcidev;
provider = SN_PCIDEV_BUSPROVIDER(pdev);
@@ -3007,7 +3007,7 @@ msi_set_affinity(struct irq_data *data, const struct cpumask *mask, bool force)
if (ret)
return ret;
- __get_cached_msi_msg(data->msi_desc, &msg);
+ get_cached_msi_msg(data->msi_desc, &msg);
msg.data &= ~MSI_DATA_VECTOR_MASK;
msg.data |= MSI_DATA_VECTOR(cfg->vector);
@@ -296,7 +296,7 @@ void read_msi_msg(unsigned int irq, struct msi_msg *msg)
__read_msi_msg(entry, msg);
}
-void __get_cached_msi_msg(struct msi_desc *entry, struct msi_msg *msg)
+void get_cached_msi_msg(struct msi_desc *entry, struct msi_msg *msg)
{
/* Assert that the cache is valid, assuming that
* valid messages are not all-zeroes. */
@@ -306,13 +306,6 @@ void __get_cached_msi_msg(struct msi_desc *entry, struct msi_msg *msg)
*msg = entry->msg;
}
-void get_cached_msi_msg(unsigned int irq, struct msi_msg *msg)
-{
- struct msi_desc *entry = irq_get_msi_desc(irq);
-
- __get_cached_msi_msg(entry, msg);
-}
-
void __write_msi_msg(struct msi_desc *entry, struct msi_msg *msg)
{
if (entry->dev->current_state != PCI_D0) {
@@ -16,10 +16,9 @@ struct msi_desc;
void mask_msi_irq(struct irq_data *data);
void unmask_msi_irq(struct irq_data *data);
void __read_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
-void __get_cached_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
+void get_cached_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
void __write_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
void read_msi_msg(unsigned int irq, struct msi_msg *msg);
-void get_cached_msi_msg(unsigned int irq, struct msi_msg *msg);
void write_msi_msg(unsigned int irq, struct msi_msg *msg);
struct msi_desc {
Get_cached_msi_msg() only be called in two places, ia64_set_msi_irq_affinity() and sn_set_msi_irq_affinity(). The code flow is: irq = irq_data->irq get_cached_msi_msg(irq) irq_get_msi_desc(irq) irq_get_irq_data(irq) msi_desc = irq_data->desc __get_cached_msi_msg(msi_desc, msg) This is crazy, we can use __get_cached_msi_msg(irq_data->desc, msg) directly to simplify the flow. Now no one use get_cached_msi_msg(), let's remove it. Then we rename __get_cached_msi_msg() to get_cached_msi_msg(). Signed-off-by: Yijing Wang <wangyijing@huawei.com> CC: Tony Luck <tony.luck@intel.com> CC: Thomas Gleixner <tglx@linutronix.de> CC: x86@kernel.org CC: linux-ia64@vger.kernel.org --- arch/ia64/kernel/msi_ia64.c | 2 +- arch/ia64/sn/kernel/msi_sn.c | 4 ++-- arch/x86/kernel/apic/io_apic.c | 2 +- drivers/pci/msi.c | 9 +-------- include/linux/msi.h | 3 +-- 5 files changed, 6 insertions(+), 14 deletions(-)