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[amazon] Add some build fixes for kernel 2.6.21 and the infineon amazon target.

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Now it compiles with the new toolchain.
These are mostly backports from mainline linux and newer linux kernels from openwrt.


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@18345 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
hauke
2009-11-08 21:56:59 +00:00
parent da02086104
commit c8e4b6534a
8 changed files with 224 additions and 6 deletions
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21
target/linux/generic-2.6/patches-2.6.21/31-use_kbuild.h.patch Normal file
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@@ -0,0 +1,21 @@
[MIPS] Fix computation of {PGD,PMD,PTE}_T_LOG2.
For the generation of asm-offset.h to work these need to be evaulatable
by gcc as a constant expression. This issue did exist for a while but
didn't bite because they're only in asm-offset.h for debugging purposes.
--- a/include/asm-mips/pgtable.h
+++ b/include/asm-mips/pgtable.h
@@ -168,9 +168,9 @@ static inline void pte_clear(struct mm_s
#define set_pud(pudptr, pudval) do { *(pudptr) = (pudval); } while(0)
#endif
-#define PGD_T_LOG2 ffz(~sizeof(pgd_t))
-#define PMD_T_LOG2 ffz(~sizeof(pmd_t))
-#define PTE_T_LOG2 ffz(~sizeof(pte_t))
+#define PGD_T_LOG2 (__builtin_ffs(sizeof(pgd_t)) - 1)
+#define PMD_T_LOG2 (__builtin_ffs(sizeof(pmd_t)) - 1)
+#define PTE_T_LOG2 (__builtin_ffs(sizeof(pte_t)) - 1)
extern pgd_t swapper_pg_dir[PTRS_PER_PGD];