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authorTejun Heo <tj@kernel.org>2009-09-22 17:34:48 +0900
committerJesse Barnes <jbarnes@virtuousgeek.org>2009-11-04 08:47:11 -0800
commit15ea76d407d560f985224b65fe59c9db01692a0d (patch)
treedd9dd1cd4cab4bff26c34853a1c67898e8500243 /block
parent4c0eec7a86303ce6e3edf7825d0ef1d414e76767 (diff)
pccard: configure CLS on attach
For non hotplug PCI devices, the system firmware usually configures CLS correctly. For pccard devices system firmware can't do it and Linux PCI layer doesn't do it either. Unfortunately this leads to poor performance for certain devices (sata_sil). Unless MWI, which requires separate configuration, is to be used, CLS doesn't affect correctness, so the configuration should be harmless. This patch makes pci_set_cacheline_size() always built and export it and make pccard call it during attach. Please note that some other PCI hotplug drivers (shpchp and pciehp) also configure CLS on hotplug. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Daniel Ritz <daniel.ritz@gmx.ch> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Greg KH <greg@kroah.com> Cc: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Cc: Axel Birndt <towerlexa@gmx.de> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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