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Subject[PATCH 4/9] MIPS: MT: Remove "weak" from vpe_run() declaration
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Weak header file declarations are error-prone because they make every
definition weak, and the linker chooses one based on link order (see
10629d711ed7 ("PCI: Remove __weak annotation from pcibios_get_phb_of_node
decl")).

That's not a problem for vpe_run() because Kconfig ensures there's never
more than one definition:

- vpe_run() is defined in arch/mips/kernel/vpe-mt.c if
CONFIG_MIPS_VPE_LOADER_MT=y

- vpe_run() is defined in arch/mips/mti-malta/malta-amon.c if
CONFIG_MIPS_CMP=y

- CONFIG_MIPS_VPE_LOADER_MT cannot be set if CONFIG_MIPS_CMP=y

But it's simpler to verify correctness if we remove "weak" from the picture
and test the config symbols directly.

Remove "weak" from the vpe_run() declaration and use #if to test whether a
definition should be present.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
arch/mips/include/asm/vpe.h | 2 +-
arch/mips/kernel/vpe.c | 10 +++++-----
2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/mips/include/asm/vpe.h b/arch/mips/include/asm/vpe.h
index 7849f39..80e70db 100644
--- a/arch/mips/include/asm/vpe.h
+++ b/arch/mips/include/asm/vpe.h
@@ -122,7 +122,7 @@ void release_vpe(struct vpe *v);
void *alloc_progmem(unsigned long len);
void release_progmem(void *ptr);

-int __weak vpe_run(struct vpe *v);
+int vpe_run(struct vpe *v);
void cleanup_tc(struct tc *tc);

int __init vpe_module_init(void);
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index 72cae9f..04539d6 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -817,15 +817,11 @@ static int vpe_open(struct inode *inode, struct file *filp)

static int vpe_release(struct inode *inode, struct file *filp)
{
+#if defined(CONFIG_MIPS_VPE_LOADER_MT) || defined(CONFIG_MIPS_CMP)
struct vpe *v;
Elf_Ehdr *hdr;
int ret = 0;

- if (!vpe_run) {
- pr_warn("VPE loader: ELF load failed.\n");
- return -ENOEXEC;
- }
-
v = get_vpe(aprp_cpu_index());
if (v == NULL)
return -ENODEV;
@@ -855,6 +851,10 @@ static int vpe_release(struct inode *inode, struct file *filp)
v->plen = 0;

return ret;
+#else
+ pr_warn("VPE loader: ELF load failed.\n");
+ return -ENOEXEC;
+#endif
}

static ssize_t vpe_write(struct file *file, const char __user *buffer,


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