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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
10629d711e ("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>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: linux-mips@linux-mips.org
Cc: James Hogan <james.hogan@imgtec.com>
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10684/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Bjorn Helgaas 2015-07-12 18:11:20 -05:00 committed by Ralf Baechle
parent 1c205b9cc6
commit c60f99445a
2 changed files with 6 additions and 6 deletions
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2
arch/mips/include/asm/vpe.h
View File

@ -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);

10
arch/mips/kernel/vpe.c
View File

@ -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_VPE_LOADER_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,