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authorRoman Fietze <roman.fietze@telemotive.de>2010-03-05 08:27:39 +0100
committerJeff Garzik <jgarzik@redhat.com>2010-05-14 17:08:02 -0400
commitec569af8584e977a3474c197da53ae2ba5823caf (patch)
tree05f5397c2db2b8035f2df4a125277cf807e8765a /drivers/ata/ahci.h
parent441577efa0dc9ae40fb72c602896fc76a87c0a3a (diff)
pata_mpc52xx: reduce code size by simple change of constant data types
I've prepared a totally simple patch that, if I did it and measured it correctly, reduces the text size as of the ppc-6xx-size command of pata-mpc52xx by more than 10%, by reducing the rodata size from 0x4a4 to 0x17e bytes. This is simply done by changing the data types of the ATA timing constants. If you are interested at all, and it's worth the trouble, here the details: ppc-6xx-size: text data bss dec hex filename old: 6532 1068 0 7600 1db0 pata-mpc52xx.o new: 5718 1068 0 6786 1a82 pata-mpc52xx.o The (assembler) code itself doesn't really change very much. I double checked the final results inside mpc52xx-ata-apply-timings() and they match. The driver is still working fine of course. Signed-off-by: Roman Fietze <roman.fietze@telemotive.de> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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