include/linux/bitops.h: introduce BITS_PER_TYPE
net_dim.h has a rather useful extension to BITS_PER_BYTE to compute the number of bits in a type (BITS_PER_BYTE * sizeof(T)), so promote the macro to bitops.h, alongside BITS_PER_BYTE, for wider usage. Link: http://lkml.kernel.org/r/20180706094458.14116-1-chris@chris-wilson.co.uk Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Andy Gospodarek <gospo@broadcom.com> Cc: David S. Miller <davem@davemloft.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -4,7 +4,8 @@
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#include <asm/types.h>
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#include <asm/types.h>
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#include <linux/bits.h>
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#include <linux/bits.h>
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#define BITS_TO_LONGS(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
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#define BITS_PER_TYPE(type) (sizeof(type) * BITS_PER_BYTE)
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#define BITS_TO_LONGS(nr) DIV_ROUND_UP(nr, BITS_PER_TYPE(long))
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extern unsigned int __sw_hweight8(unsigned int w);
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extern unsigned int __sw_hweight8(unsigned int w);
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extern unsigned int __sw_hweight16(unsigned int w);
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extern unsigned int __sw_hweight16(unsigned int w);
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@ -363,7 +363,6 @@ static inline void net_dim_sample(u16 event_ctr,
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}
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}
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#define NET_DIM_NEVENTS 64
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#define NET_DIM_NEVENTS 64
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#define BITS_PER_TYPE(type) (sizeof(type) * BITS_PER_BYTE)
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#define BIT_GAP(bits, end, start) ((((end) - (start)) + BIT_ULL(bits)) & (BIT_ULL(bits) - 1))
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#define BIT_GAP(bits, end, start) ((((end) - (start)) + BIT_ULL(bits)) & (BIT_ULL(bits) - 1))
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static inline void net_dim_calc_stats(struct net_dim_sample *start,
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static inline void net_dim_calc_stats(struct net_dim_sample *start,
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