kernel/iomem.c: remove __weak ioremap_cache helper

No portable code calls into this function any more, and on architectures
that don't use or define their own, it causes a warning:

kernel/iomem.c:10:22: warning: no previous prototype for 'ioremap_cache' [-Wmissing-prototypes]
   10 | __weak void __iomem *ioremap_cache(resource_size_t offset, unsigned long size)

Fold it into the only caller that uses it on architectures
without the #define.

Note that the fallback to ioremap is probably still wrong on
those architectures, but this is what it's always done there.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnd Bergmann <[email protected]>
Reviewed-by: Baoquan He <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

0 files changed, 0 insertions, 0 deletions