The patch titled
m68knommu: fix build error due to the lack of find_next_bit_le()
has been added to the -mm tree. Its filename is
m68knommu-fix-build-error-due-to-the-lack-of-find_next_bit_le.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: m68knommu: fix build error due to the lack of find_next_bit_le()
From: Akinobu Mita <akinobu.mita@xxxxxxxxx>
m68knommu can't build ext4, udf, and ocfs2 due to the lack of
find_next_bit_le().
This implements find_next_bit_le() on m68knommu by duplicating the generic
find_next_bit_le() in lib/find_next_bit.c.
Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Cc: Greg Ungerer <gerg@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/m68k/include/asm/bitops_no.h | 44 ++++++++++++++++++++++++++++
1 file changed, 44 insertions(+)
diff -puN arch/m68k/include/asm/bitops_no.h~m68knommu-fix-build-error-due-to-the-lack-of-find_next_bit_le arch/m68k/include/asm/bitops_no.h
--- a/arch/m68k/include/asm/bitops_no.h~m68knommu-fix-build-error-due-to-the-lack-of-find_next_bit_le
+++ a/arch/m68k/include/asm/bitops_no.h
@@ -320,6 +320,50 @@ found_middle:
return result + ffz(__swab32(tmp));
}
+static inline unsigned long find_next_bit_le(const void *addr, unsigned
+ long size, unsigned long offset)
+{
+ const unsigned long *p = addr;
+ unsigned long result = offset & ~(BITS_PER_LONG - 1);
+ unsigned long tmp;
+
+ if (offset >= size)
+ return size;
+ p += offset / BITS_PER_LONG;
+ size -= result;
+ offset &= (BITS_PER_LONG - 1UL);
+ if (offset) {
+ tmp = __swab32(*(p++));
+ tmp &= (~0UL << offset);
+ if (size < BITS_PER_LONG)
+ goto found_first;
+ if (tmp)
+ goto found_middle;
+ size -= BITS_PER_LONG;
+ result += BITS_PER_LONG;
+ }
+
+ while (size & ~(BITS_PER_LONG - 1)) {
+ tmp = *(p++);
+ if (tmp)
+ goto found_middle_swap;
+ result += BITS_PER_LONG;
+ size -= BITS_PER_LONG;
+ }
+ if (!size)
+ return result;
+ tmp = __swab32(*p);
+found_first:
+ tmp &= (~0UL >> (BITS_PER_LONG - size));
+ if (tmp == 0UL) /* Are any bits set? */
+ return result + size; /* Nope. */
+found_middle:
+ return result + __ffs(tmp);
+
+found_middle_swap:
+ return result + __ffs(__swab32(tmp));
+}
+
#endif /* __KERNEL__ */
#include <asm-generic/bitops/fls.h>
_
Patches currently in -mm which might be from akinobu.mita@xxxxxxxxx are
linux-next.patch
m68knommu-fix-build-error-due-to-the-lack-of-find_next_bit_le.patch
arch-add-define-for-each-of-optimized-find-bitops.patch
bitops-add-ifndef-for-each-of-find-bitops.patch
arch-remove-config_generic_find_next_bitbit_lelast_bit.patch
arm-use-asm-generic-bitops-leh.patch
s390-use-asm-generic-bitops-leh.patch
m68knommu-use-generic-find_next_bit_le.patch
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