From 0f58163c9d5702efbc242d144fd038e54b4c6ad0 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Fri, 26 Jul 2019 15:31:25 -0300 Subject: [PATCH] tools headers UAPI: Sync usbdevice_fs.h with the kernels to get new ioctl MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit To get the changes in: 6d101f24f1dd ("USB: add usbfs ioctl to retrieve the connection parameters") And address this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/usbdevice_fs.h' differs from latest version at 'include/uapi/linux/usbdevice_fs.h' diff -u tools/include/uapi/linux/usbdevice_fs.h include/uapi/linux/usbdevice_fs.h Which ends up autogenerating a ioctl_cmd->string table used by 'perf trace': $ tools/perf/trace/beauty/usbdevfs_ioctl.sh > before $ cp include/uapi/linux/usbdevice_fs.h tools/include/uapi/linux/usbdevice_fs.h $ tools/perf/trace/beauty/usbdevfs_ioctl.sh > after $ diff -u before after --- before 2019-07-26 15:26:55.513636844 -0300 +++ after 2019-07-26 15:29:11.650518677 -0300 @@ -23,6 +23,7 @@ [2] = "BULK", [30] = "DROP_PRIVILEGES", [31] = "GET_SPEED", + [32] = "CONNINFO_EX", [3] = "RESETEP", [4] = "SETINTERFACE", [5] = "SETCONFIGURATION", $ Now 'perf trace' ioctl beautifier will translate this new ioctl to a string and at some point will allow filtering the 'ioctl' syscall with something like this in a system wide strace-like sessin: # perf trace -e ioctl/cmd=USBDEVFS_CONNINFO_EX/ Cc: Adrian Hunter Cc: Dmitry Torokhov Cc: Greg Kroah-Hartman Cc: Jiri Olsa Cc: Luis Cláudio Gonçalves Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-tkdfbgzqypwco96b309c0ovd@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/include/uapi/linux/usbdevice_fs.h | 26 +++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/tools/include/uapi/linux/usbdevice_fs.h b/tools/include/uapi/linux/usbdevice_fs.h index 964e87217be4..78efe870c2b7 100644 --- a/tools/include/uapi/linux/usbdevice_fs.h +++ b/tools/include/uapi/linux/usbdevice_fs.h @@ -76,6 +76,26 @@ struct usbdevfs_connectinfo { unsigned char slow; }; +struct usbdevfs_conninfo_ex { + __u32 size; /* Size of the structure from the kernel's */ + /* point of view. Can be used by userspace */ + /* to determine how much data can be */ + /* used/trusted. */ + __u32 busnum; /* USB bus number, as enumerated by the */ + /* kernel, the device is connected to. */ + __u32 devnum; /* Device address on the bus. */ + __u32 speed; /* USB_SPEED_* constants from ch9.h */ + __u8 num_ports; /* Number of ports the device is connected */ + /* to on the way to the root hub. It may */ + /* be bigger than size of 'ports' array so */ + /* userspace can detect overflows. */ + __u8 ports[7]; /* List of ports on the way from the root */ + /* hub to the device. Current limit in */ + /* USB specification is 7 tiers (root hub, */ + /* 5 intermediate hubs, device), which */ + /* gives at most 6 port entries. */ +}; + #define USBDEVFS_URB_SHORT_NOT_OK 0x01 #define USBDEVFS_URB_ISO_ASAP 0x02 #define USBDEVFS_URB_BULK_CONTINUATION 0x04 @@ -137,6 +157,7 @@ struct usbdevfs_hub_portinfo { #define USBDEVFS_CAP_REAP_AFTER_DISCONNECT 0x10 #define USBDEVFS_CAP_MMAP 0x20 #define USBDEVFS_CAP_DROP_PRIVILEGES 0x40 +#define USBDEVFS_CAP_CONNINFO_EX 0x80 /* USBDEVFS_DISCONNECT_CLAIM flags & struct */ @@ -197,5 +218,10 @@ struct usbdevfs_streams { #define USBDEVFS_FREE_STREAMS _IOR('U', 29, struct usbdevfs_streams) #define USBDEVFS_DROP_PRIVILEGES _IOW('U', 30, __u32) #define USBDEVFS_GET_SPEED _IO('U', 31) +/* + * Returns struct usbdevfs_conninfo_ex; length is variable to allow + * extending size of the data returned. + */ +#define USBDEVFS_CONNINFO_EX(len) _IOC(_IOC_READ, 'U', 32, len) #endif /* _UAPI_LINUX_USBDEVICE_FS_H */ -- 2.39.5