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authorPaul Mundt <lethal@linux-sh.org>2008-02-13 17:02:33 +0900
committerGreg Kroah-Hartman <gregkh@suse.de>2008-04-24 21:16:35 -0700
commit96f9bc373c83a67922dc32f358e8a3b3dd4e18a0 (patch)
treeaa307e812edce8697c5419d34e1937c7e54b60a0 /Documentation/stable_api_nonsense.txt
parent135db0485cdfa808d69420889ca4a2fad8aed9df (diff)
USB: m66592-udc: reduce size of data structure.
Poking around with pahole, we see that m66592 handily shoves a u16 in between larger types on 2 separate occasions leaving us with 2 2-byte holes: struct m66592 { ... /* size: 1196, cachelines: 38 */ /* sum members: 1192, holes: 2, sum holes: 4 */ /* last cacheline: 12 bytes */ }; /* definitions: 1 */ Pairing them gets back 4-bytes: struct m66592 { ... /* size: 1192, cachelines: 38 */ /* last cacheline: 8 bytes */ }; /* definitions: 1 */ Unfortunately it's not enough to save a cacheline with this massive structure, but every byte helps. Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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