diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/usb/mon/mon_bin.c | 105 |
1 files changed, 66 insertions, 39 deletions
diff --git a/drivers/usb/mon/mon_bin.c b/drivers/usb/mon/mon_bin.c index e06810aef2df..4cf27c72423e 100644 --- a/drivers/usb/mon/mon_bin.c +++ b/drivers/usb/mon/mon_bin.c | |||
@@ -37,6 +37,7 @@ | |||
37 | #define MON_IOCX_GET _IOW(MON_IOC_MAGIC, 6, struct mon_bin_get) | 37 | #define MON_IOCX_GET _IOW(MON_IOC_MAGIC, 6, struct mon_bin_get) |
38 | #define MON_IOCX_MFETCH _IOWR(MON_IOC_MAGIC, 7, struct mon_bin_mfetch) | 38 | #define MON_IOCX_MFETCH _IOWR(MON_IOC_MAGIC, 7, struct mon_bin_mfetch) |
39 | #define MON_IOCH_MFLUSH _IO(MON_IOC_MAGIC, 8) | 39 | #define MON_IOCH_MFLUSH _IO(MON_IOC_MAGIC, 8) |
40 | |||
40 | #ifdef CONFIG_COMPAT | 41 | #ifdef CONFIG_COMPAT |
41 | #define MON_IOCX_GET32 _IOW(MON_IOC_MAGIC, 6, struct mon_bin_get32) | 42 | #define MON_IOCX_GET32 _IOW(MON_IOC_MAGIC, 6, struct mon_bin_get32) |
42 | #define MON_IOCX_MFETCH32 _IOWR(MON_IOC_MAGIC, 7, struct mon_bin_mfetch32) | 43 | #define MON_IOCX_MFETCH32 _IOWR(MON_IOC_MAGIC, 7, struct mon_bin_mfetch32) |
@@ -921,21 +922,6 @@ static int mon_bin_ioctl(struct inode *inode, struct file *file, | |||
921 | } | 922 | } |
922 | break; | 923 | break; |
923 | 924 | ||
924 | #ifdef CONFIG_COMPAT | ||
925 | case MON_IOCX_GET32: { | ||
926 | struct mon_bin_get32 getb; | ||
927 | |||
928 | if (copy_from_user(&getb, (void __user *)arg, | ||
929 | sizeof(struct mon_bin_get32))) | ||
930 | return -EFAULT; | ||
931 | |||
932 | ret = mon_bin_get_event(file, rp, | ||
933 | compat_ptr(getb.hdr32), compat_ptr(getb.data32), | ||
934 | getb.alloc32); | ||
935 | } | ||
936 | break; | ||
937 | #endif | ||
938 | |||
939 | case MON_IOCX_MFETCH: | 925 | case MON_IOCX_MFETCH: |
940 | { | 926 | { |
941 | struct mon_bin_mfetch mfetch; | 927 | struct mon_bin_mfetch mfetch; |
@@ -962,7 +948,57 @@ static int mon_bin_ioctl(struct inode *inode, struct file *file, | |||
962 | } | 948 | } |
963 | break; | 949 | break; |
964 | 950 | ||
951 | case MON_IOCG_STATS: { | ||
952 | struct mon_bin_stats __user *sp; | ||
953 | unsigned int nevents; | ||
954 | unsigned int ndropped; | ||
955 | |||
956 | spin_lock_irqsave(&rp->b_lock, flags); | ||
957 | ndropped = rp->cnt_lost; | ||
958 | rp->cnt_lost = 0; | ||
959 | spin_unlock_irqrestore(&rp->b_lock, flags); | ||
960 | nevents = mon_bin_queued(rp); | ||
961 | |||
962 | sp = (struct mon_bin_stats __user *)arg; | ||
963 | if (put_user(rp->cnt_lost, &sp->dropped)) | ||
964 | return -EFAULT; | ||
965 | if (put_user(nevents, &sp->queued)) | ||
966 | return -EFAULT; | ||
967 | |||
968 | } | ||
969 | break; | ||
970 | |||
971 | default: | ||
972 | return -ENOTTY; | ||
973 | } | ||
974 | |||
975 | return ret; | ||
976 | } | ||
977 | |||
965 | #ifdef CONFIG_COMPAT | 978 | #ifdef CONFIG_COMPAT |
979 | static long mon_bin_compat_ioctl(struct file *file, | ||
980 | unsigned int cmd, unsigned long arg) | ||
981 | { | ||
982 | struct mon_reader_bin *rp = file->private_data; | ||
983 | int ret; | ||
984 | |||
985 | switch (cmd) { | ||
986 | |||
987 | case MON_IOCX_GET32: { | ||
988 | struct mon_bin_get32 getb; | ||
989 | |||
990 | if (copy_from_user(&getb, (void __user *)arg, | ||
991 | sizeof(struct mon_bin_get32))) | ||
992 | return -EFAULT; | ||
993 | |||
994 | ret = mon_bin_get_event(file, rp, | ||
995 | compat_ptr(getb.hdr32), compat_ptr(getb.data32), | ||
996 | getb.alloc32); | ||
997 | if (ret < 0) | ||
998 | return ret; | ||
999 | } | ||
1000 | return 0; | ||
1001 | |||
966 | case MON_IOCX_MFETCH32: | 1002 | case MON_IOCX_MFETCH32: |
967 | { | 1003 | { |
968 | struct mon_bin_mfetch32 mfetch; | 1004 | struct mon_bin_mfetch32 mfetch; |
@@ -986,37 +1022,25 @@ static int mon_bin_ioctl(struct inode *inode, struct file *file, | |||
986 | return ret; | 1022 | return ret; |
987 | if (put_user(ret, &uptr->nfetch32)) | 1023 | if (put_user(ret, &uptr->nfetch32)) |
988 | return -EFAULT; | 1024 | return -EFAULT; |
989 | ret = 0; | ||
990 | } | 1025 | } |
991 | break; | 1026 | return 0; |
992 | #endif | ||
993 | |||
994 | case MON_IOCG_STATS: { | ||
995 | struct mon_bin_stats __user *sp; | ||
996 | unsigned int nevents; | ||
997 | unsigned int ndropped; | ||
998 | |||
999 | spin_lock_irqsave(&rp->b_lock, flags); | ||
1000 | ndropped = rp->cnt_lost; | ||
1001 | rp->cnt_lost = 0; | ||
1002 | spin_unlock_irqrestore(&rp->b_lock, flags); | ||
1003 | nevents = mon_bin_queued(rp); | ||
1004 | 1027 | ||
1005 | sp = (struct mon_bin_stats __user *)arg; | 1028 | case MON_IOCG_STATS: |
1006 | if (put_user(rp->cnt_lost, &sp->dropped)) | 1029 | return mon_bin_ioctl(NULL, file, cmd, |
1007 | return -EFAULT; | 1030 | (unsigned long) compat_ptr(arg)); |
1008 | if (put_user(nevents, &sp->queued)) | ||
1009 | return -EFAULT; | ||
1010 | 1031 | ||
1011 | } | 1032 | case MON_IOCQ_URB_LEN: |
1012 | break; | 1033 | case MON_IOCQ_RING_SIZE: |
1034 | case MON_IOCT_RING_SIZE: | ||
1035 | case MON_IOCH_MFLUSH: | ||
1036 | return mon_bin_ioctl(NULL, file, cmd, arg); | ||
1013 | 1037 | ||
1014 | default: | 1038 | default: |
1015 | return -ENOTTY; | 1039 | ; |
1016 | } | 1040 | } |
1017 | 1041 | return -ENOTTY; | |
1018 | return ret; | ||
1019 | } | 1042 | } |
1043 | #endif /* CONFIG_COMPAT */ | ||
1020 | 1044 | ||
1021 | static unsigned int | 1045 | static unsigned int |
1022 | mon_bin_poll(struct file *file, struct poll_table_struct *wait) | 1046 | mon_bin_poll(struct file *file, struct poll_table_struct *wait) |
@@ -1094,6 +1118,9 @@ static const struct file_operations mon_fops_binary = { | |||
1094 | /* .write = mon_text_write, */ | 1118 | /* .write = mon_text_write, */ |
1095 | .poll = mon_bin_poll, | 1119 | .poll = mon_bin_poll, |
1096 | .ioctl = mon_bin_ioctl, | 1120 | .ioctl = mon_bin_ioctl, |
1121 | #ifdef CONFIG_COMPAT | ||
1122 | .compat_ioctl = mon_bin_compat_ioctl, | ||
1123 | #endif | ||
1097 | .release = mon_bin_release, | 1124 | .release = mon_bin_release, |
1098 | .mmap = mon_bin_mmap, | 1125 | .mmap = mon_bin_mmap, |
1099 | }; | 1126 | }; |