#define SUSBCRequest_SetBaudRateParityAndStopBits 1 #define SUSBCR_SBR_MASK 0xFF00 #define SUSBCR_SBR_1200 0x0100 #define SUSBCR_SBR_9600 0x0200 #define SUSBCR_SBR_19200 0x0400 #define SUSBCR_SBR_28800 0x0800 #define SUSBCR_SBR_38400 0x1000 #define SUSBCR_SBR_57600 0x2000 #define SUSBCR_SBR_115200 0x4000 #define SUSBCR_SPASB_MASK 0x0070 #define SUSBCR_SPASB_NoParity 0x0010 #define SUSBCR_SPASB_OddParity 0x0020 #define SUSBCR_SPASB_EvenParity 0x0040 #define SUSBCR_SPASB_STPMASK 0x0003 #define SUSBCR_SPASB_1StopBit 0x0001 #define SUSBCR_SPASB_2StopBits 0x0002 #define SUSBCRequest_SetStatusLinesOrQueues 2 #define SUSBCR_SSL_SETRTS 0x0001 #define SUSBCR_SSL_CLRRTS 0x0002 #define SUSBCR_SSL_SETDTR 0x0004 #define SUSBCR_SSL_CLRDTR 0x0010 /* Kill the pending/current writes to the comm port. */ #define SUSBCR_SSL_PURGE_TXABORT 0x0100 /* Kill the pending/current reads to the comm port. */ #define SUSBCR_SSL_PURGE_RXABORT 0x0200 /* Kill the transmit queue if there. */ #define SUSBCR_SSL_PURGE_TXCLEAR 0x0400 /* Kill the typeahead buffer if there. */ #define SUSBCR_SSL_PURGE_RXCLEAR 0x0800 #define SUSBCRequest_GetStatusLineState 4 /* Any Character received */ #define SUSBCR_GSL_RXCHAR 0x0001 /* Transmitt Queue Empty */ #define SUSBCR_GSL_TXEMPTY 0x0004 /* CTS changed state */ #define SUSBCR_GSL_CTS 0x0008 /* DSR changed state */ #define SUSBCR_GSL_DSR 0x0010 /* RLSD changed state */ #define SUSBCR_GSL_RLSD 0x0020 /* BREAK received */ #define SUSBCR_GSL_BREAK 0x0040 /* Line status error occurred */ #define SUSBCR_GSL_ERR 0x0080 /* Ring signal detected */ #define SUSBCR_GSL_RING 0x0100 #define SUSBCRequest_Misc 8 /* use a predefined reset sequence */ #define SUSBCR_MSC_ResetReader 0x0001 /* use a predefined sequence to reset the internal queues */ #define SUSBCR_MSC_ResetAllQueues 0x0002 #define SUSBCRequest_GetMisc 0x10 /* * get the firmware version from device, coded like this 0xHHLLBBPP with * HH = Firmware Version High Byte * LL = Firmware Version Low Byte * BB = Build Number * PP = Further Attributes */ #define SUSBCR_MSC_GetFWVersion 0x0001 /* * get the hardware version from device coded like this 0xHHLLPPRR with * HH = Software Version High Byte * LL = Software Version Low Byte * PP = Further Attributes * RR = Reserved for the hardware ID */ #define SUSBCR_MSC_GetHWVersion 0x0002 it.cgi/linux/net-next.git/log/drivers/usb/host/ehci-mem.c'>
path: root/drivers/usb/host/ehci-mem.c
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authorChristoph Hellwig <hch@lst.de>2017-01-30 13:15:41 +0100
committerBjorn Helgaas <bhelgaas@google.com>2017-02-02 10:35:46 -0600
commitdfef358bd1beb4e7b5c94eca944be9cd23dfc752 (patch)
treeb9a2afb38a4c2ac8ad31f49ec0d71fe9e5b1994c /drivers/usb/host/ehci-mem.c
parent030305d69fc6963c16003f50d7e8d74b02d0a143 (diff)
PCI/MSI: Don't apply affinity if there aren't enough vectors left
Bart reported a problem wіth an out of bounds access in the low-level IRQ affinity code, which we root caused to the qla2xxx driver assigning all its MSI-X vectors to the pre and post vectors, and not having any left for the actually spread IRQs. Fix this issue by not asking for affinity assignment when there are no vectors to assign left. Fixes: 402723ad5c62 ("PCI/MSI: Provide pci_alloc_irq_vectors_affinity()") Link: https://lkml.kernel.org/r/1485359225.3093.3.camel@sandisk.com Reported-by: Bart Van Assche <bart.vanassche@sandisk.com> Tested-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/usb/host/ehci-mem.c')