[PATCH v2 3/4] mtd: mxc_nand: fix truncate of unaligned oob copying
Uwe Kleine-König
u.kleine-koenig at pengutronix.de
Fri May 8 00:24:32 PDT 2015
On Sun, May 03, 2015 at 10:18:53AM +0300, Baruch Siach wrote:
> Copy to/from oob io area might not be aligned to 4 bytes. When 8 bit ECC is
> used, the buffer size is 26. Add memcpy16_{to,from}io, and use them to avoid
> truncating the buffer. Prefer memcpy32_{to,from}io when the buffer is properly
> aligned for better performance.
Did you measure this performance difference? I doubt it's worth the
complexity given that we're talking about buffers with a size of up to
26 bytes.
Best regards
Uwe
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Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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