sh: pci: Use a generic raw spinlock for PCI config access locking.

This copies the pci_config_lock idea from x86 over, allowing us to kill
off a couple of existing private locks. At the same time, these need to
be converted to raw spinlocks for -rt kernels, so we make that change at
the same time. This should make it easier for future parts to get the
locking right instead of inevitable ending up with lock type mismatches.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/sh/include/asm/pci.h b/arch/sh/include/asm/pci.h
index 8bd952fcf3ba..f0efe97f1750 100644
--- a/arch/sh/include/asm/pci.h
+++ b/arch/sh/include/asm/pci.h
@@ -37,6 +37,8 @@ struct pci_channel {
 };
 
 /* arch/sh/drivers/pci/pci.c */
+extern raw_spinlock_t pci_config_lock;
+
 extern int register_pci_controller(struct pci_channel *hose);
 extern void pcibios_report_status(unsigned int status_mask, int warn);