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4e868f8419
| CC mm/nobootmem.o |In file included from ./include/asm-generic/bug.h:18:0, | from ./arch/arc/include/asm/bug.h:32, | from ./include/linux/bug.h:5, | from ./include/linux/mmdebug.h:5, | from ./include/linux/gfp.h:5, | from ./include/linux/slab.h:15, | from mm/nobootmem.c:14: |mm/nobootmem.c: In function '__free_pages_memory': |./include/linux/kernel.h:845:29: warning: comparison of distinct pointer types lacks a cast | (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1))) | ^ |./include/linux/kernel.h:859:4: note: in expansion of macro '__typecheck' | (__typecheck(x, y) && __no_side_effects(x, y)) | ^~~~~~~~~~~ |./include/linux/kernel.h:869:24: note: in expansion of macro '__safe_cmp' | __builtin_choose_expr(__safe_cmp(x, y), \ | ^~~~~~~~~~ |./include/linux/kernel.h:878:19: note: in expansion of macro '__careful_cmp' | #define min(x, y) __careful_cmp(x, y, <) | ^~~~~~~~~~~~~ |mm/nobootmem.c:104:11: note: in expansion of macro 'min' | order = min(MAX_ORDER - 1UL, __ffs(start)); Change __ffs return value from 'int' to 'unsigned long' as it is done in other implementations (like asm-generic, x86, etc...) to avoid build-time warnings in places where type is strictly checked. As __ffs may return values in [0-31] interval changing return type to unsigned is valid. Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com> |
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