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Full speed devices have varying max packet sizes (8, 16, 32, or 64) for endpoint 0. The xHCI hardware needs to know the real max packet size that the USB core discovers after it fetches the first 8 bytes of the device descriptor. In order to fix this without adding a new hook to host controller drivers, the xHCI driver looks for an updated max packet size for control endpoints. If it finds an updated size, it issues an evaluate context command and waits for that command to finish. This should only happen in the initialization and device descriptor fetching steps in the khubd thread, so blocking should be fine. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
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| .. | ||
| whci | ||
| ehci-au1xxx.c | ||
| ehci-dbg.c | ||
| ehci-fsl.c | ||
| ehci-fsl.h | ||
| ehci-hcd.c | ||
| ehci-hub.c | ||
| ehci-ixp4xx.c | ||
| ehci-mem.c | ||
| ehci-orion.c | ||
| ehci-pci.c | ||
| ehci-ppc-of.c | ||
| ehci-ps3.c | ||
| ehci-q.c | ||
| ehci-sched.c | ||
| ehci.h | ||
| fhci-dbg.c | ||
| fhci-hcd.c | ||
| fhci-hub.c | ||
| fhci-mem.c | ||
| fhci-q.c | ||
| fhci-sched.c | ||
| fhci-tds.c | ||
| fhci.h | ||
| hwa-hc.c | ||
| isp116x-hcd.c | ||
| isp116x.h | ||
| isp1760-hcd.c | ||
| isp1760-hcd.h | ||
| isp1760-if.c | ||
| Kconfig | ||
| Makefile | ||
| ohci-at91.c | ||
| ohci-au1xxx.c | ||
| ohci-dbg.c | ||
| ohci-ep93xx.c | ||
| ohci-hcd.c | ||
| ohci-hub.c | ||
| ohci-lh7a404.c | ||
| ohci-mem.c | ||
| ohci-omap.c | ||
| ohci-pci.c | ||
| ohci-pnx4008.c | ||
| ohci-pnx8550.c | ||
| ohci-ppc-of.c | ||
| ohci-ppc-soc.c | ||
| ohci-ps3.c | ||
| ohci-pxa27x.c | ||
| ohci-q.c | ||
| ohci-s3c2410.c | ||
| ohci-sa1111.c | ||
| ohci-sh.c | ||
| ohci-sm501.c | ||
| ohci-ssb.c | ||
| ohci-tmio.c | ||
| ohci.h | ||
| oxu210hp-hcd.c | ||
| oxu210hp.h | ||
| pci-quirks.c | ||
| pci-quirks.h | ||
| r8a66597-hcd.c | ||
| r8a66597.h | ||
| sl811_cs.c | ||
| sl811-hcd.c | ||
| sl811.h | ||
| u132-hcd.c | ||
| uhci-debug.c | ||
| uhci-hcd.c | ||
| uhci-hcd.h | ||
| uhci-hub.c | ||
| uhci-q.c | ||
| xhci-dbg.c | ||
| xhci-ext-caps.h | ||
| xhci-hcd.c | ||
| xhci-hub.c | ||
| xhci-mem.c | ||
| xhci-pci.c | ||
| xhci-ring.c | ||
| xhci.h | ||