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| author |   Bjorn Helgaas <bhelgaas@google.com> | 2015-07-12 18:11:20 -0500 |
|---|---|---|
| committer |   Ralf Baechle <ralf@linux-mips.org> | 2015-08-26 15:23:40 +0200 |
| commit | c60f99445aed684b5a8d84dcb84f5a06c1f70430 (patch) | |
| tree | 491f3bbf12ec909204e9e25e298af796451b3936 /arch/mips/kernel/vpe.c | |
| parent | MIPS: VPE: Exit vpe_release() early if vpe_run() isn't defined (diff) | |
| download | linux-dev-c60f99445aed684b5a8d84dcb84f5a06c1f70430.tar.xz linux-dev-c60f99445aed684b5a8d84dcb84f5a06c1f70430.zip | |
MIPS: MT: Remove "weak" from vpe_run() declaration
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>
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>
Diffstat (limited to 'arch/mips/kernel/vpe.c')
| -rw-r--r-- | arch/mips/kernel/vpe.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c index 72cae9f55460..9067b651c7a2 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_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, |