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authorJeff Garzik <jeff@garzik.org>2009-12-07 11:41:25 -0500
committerJeff Garzik <jgarzik@redhat.com>2009-12-07 11:41:25 -0500
commit1b52f2a41c41052d2a7c78af0bd9b8b11d70f49a (patch)
treef71bd703c40d3b5dec2e9db074e2ea43c0d8f4a5 /arch/arm/mach-mx3/devices.h
parentd0634c4aea0b80447cbdc4c0db285004b860c455 (diff)
Revert "pata_sis: Implement MWDMA for the UDMA 133 capable chips"
This reverts commit f20941f334d8fdb6b598658979709b4e94cd034b. Sergei Shtylyov notes "You call min() on uncomparables [in mwdma_clip_to_pio()], i.e. mwdma_to_pio[] contains XFER_PIO_* and adev->pio_mode - XFER_PIO_0 yields you a mode number. Thus the second argument will always "win" as a minimal one" Bartlomiej Zolnierkiewicz adds "There are more issues with the patch related to mwdma_clip_to_pio(). The function can return values between 0 and 4 which obviously won't work well for the new code below for values >2 (i.e. resulting in out-of-bounds array access for the common-case of dev->pio_mode == XFER_PIO_4)." Bartlomiej Zolnierkiewicz also notes the patch is incomplete, failing to update MWDMA mode masks. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'arch/arm/mach-mx3/devices.h')
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