[PATCH v2 2/3] MIPS: cm/cpc: export some missing symbols to be able to use them from driver code

Yanteng Si
2021-10-28T04:05:40Z

Since commit 2bdd5238e756 ("PCI: mt7621: Add MediaTek MT7621 PCIe host controller driver")
the MT7621 PCIe host controller driver is built as a module but modpost complains once these
drivers become modules.

ERROR: modpost: "mips_cm_unlock_other" [drivers/pci/controller/pcie-mt7621.ko] undefined!
ERROR: modpost: "mips_cpc_base" [drivers/pci/controller/pcie-mt7621.ko] undefined!
ERROR: modpost: "mips_cm_lock_other" [drivers/pci/controller/pcie-mt7621.ko] undefined!
ERROR: modpost: "mips_cm_is64" [drivers/pci/controller/pcie-mt7621.ko] undefined!
ERROR: modpost: "mips_gcr_base" [drivers/pci/controller/pcie-mt7621.ko] undefined!

Let's just export them.

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
---
arch/mips/kernel/mips-cm.c | 5 +++++
arch/mips/kernel/mips-cpc.c | 1 +
2 files changed, 6 insertions(+)

diff --git a/arch/mips/kernel/mips-cm.c b/arch/mips/kernel/mips-cm.c
index 90f1c3df1f0e..892258760bf3 100644
--- a/arch/mips/kernel/mips-cm.c
+++ b/arch/mips/kernel/mips-cm.c
@@ -12,8 +12,11 @@
#include <asm/mipsregs.h>

void __iomem *mips_gcr_base;
+EXPORT_SYMBOL_GPL(mips_gcr_base);
+
void __iomem *mips_cm_l2sync_base;
int mips_cm_is64;
+EXPORT_SYMBOL_GPL(mips_cm_is64);

static char *cm2_tr[8] = {
"mem", "gcr", "gic", "mmio",
@@ -353,6 +356,7 @@ void mips_cm_lock_other(unsigned int cluster, unsigned int core,
*/
mb();
}
+EXPORT_SYMBOL_GPL(mips_cm_lock_other);

void mips_cm_unlock_other(void)
{
@@ -369,6 +373,7 @@ void mips_cm_unlock_other(void)

preempt_enable();
}
+EXPORT_SYMBOL_GPL(mips_cm_unlock_other);

void mips_cm_error_report(void)
{
diff --git a/arch/mips/kernel/mips-cpc.c b/arch/mips/kernel/mips-cpc.c
index 8d2535123f11..26392d18729c 100644
--- a/arch/mips/kernel/mips-cpc.c
+++ b/arch/mips/kernel/mips-cpc.c
@@ -13,6 +13,7 @@
#include <asm/mips-cps.h>

void __iomem *mips_cpc_base;
+EXPORT_SYMBOL_GPL(mips_cpc_base);

static DEFINE_PER_CPU_ALIGNED(spinlock_t, cpc_core_lock);

--
2.27.0