Thread (12 messages) 12 messages, 5 authors, 2012-06-12

Re: [PATCH 1/4] drivers/net/ethernet/sfc: Add efx_ prefix to set_bit_le()

From: Takuya Yoshikawa <hidden>
Date: 2012-06-12 13:07:04
Also in: kvm, linux-arch, lkml

On Mon, 11 Jun 2012 14:09:15 +0000
Arnd Bergmann [off-list ref] wrote:
On Monday 11 June 2012, Takuya Yoshikawa wrote:
quoted
 /* Set bit in a little-endian bitfield */
-static inline void set_bit_le(unsigned nr, unsigned char *addr)
+static inline void efx_set_bit_le(unsigned nr, unsigned char *addr)
 {
        addr[nr / 8] |= (1 << (nr % 8));
 }
 
 /* Clear bit in a little-endian bitfield */
-static inline void clear_bit_le(unsigned nr, unsigned char *addr)
+static inline void efx_clear_bit_le(unsigned nr, unsigned char *addr)
 {
        addr[nr / 8] &= ~(1 << (nr % 8));
 }
Hmm, any reason why we're not just using the existing non-atomic
__set_bit_le() here? I think the helpers in sfc and tulip can
just get removed if you use those.
__set_bit_le() assumes long word alignment and does endian conversion
when needed.

To be honest, I am a bit scared of changing drivers which I cannot test
on real hardware.

	Takuya
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