diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-15 12:39:13 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-15 12:39:13 -0700 |
commit | 849c529f57020cc47085400edd5e641d95cd4faf (patch) | |
tree | 5f2d1add9f98995bf8c22cdfc6ade3e02869e1ac /drivers/ieee1394 | |
parent | b9d2252c1e44fa83a4e65fdc9eb93db6297c55af (diff) | |
parent | a7ea67823af4a7e442e92064b0fab46603a588f6 (diff) | |
download | kernel_samsung_smdk4412-849c529f57020cc47085400edd5e641d95cd4faf.zip kernel_samsung_smdk4412-849c529f57020cc47085400edd5e641d95cd4faf.tar.gz kernel_samsung_smdk4412-849c529f57020cc47085400edd5e641d95cd4faf.tar.bz2 |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
firewire: don't respond to broadcast write requests
firewire: clean up fw_card reference counting
firewire: clean up some includes
firewire: remove unused struct members
firewire: implement broadcast_channel CSR for 1394a compliance
ieee1394: dump mmapped iso buffers in core files
ieee1394: raw1394: Push the BKL down into the driver ioctls
ieee1394: video1394: reorder module init, prepare BKL removal
ieee1394: reduce log noise about config ROM CRC errors
Diffstat (limited to 'drivers/ieee1394')
-rw-r--r-- | drivers/ieee1394/csr1212.c | 32 | ||||
-rw-r--r-- | drivers/ieee1394/dma.c | 2 | ||||
-rw-r--r-- | drivers/ieee1394/highlevel.c | 4 | ||||
-rw-r--r-- | drivers/ieee1394/highlevel.h | 13 | ||||
-rw-r--r-- | drivers/ieee1394/raw1394.c | 20 | ||||
-rw-r--r-- | drivers/ieee1394/video1394.c | 2 |
6 files changed, 53 insertions, 20 deletions
diff --git a/drivers/ieee1394/csr1212.c b/drivers/ieee1394/csr1212.c index e8122de..9f95337 100644 --- a/drivers/ieee1394/csr1212.c +++ b/drivers/ieee1394/csr1212.c @@ -1049,6 +1049,24 @@ int csr1212_read(struct csr1212_csr *csr, u32 offset, void *buffer, u32 len) return -ENOENT; } +/* + * Apparently there are many different wrong implementations of the CRC + * algorithm. We don't fail, we just warn... approximately once per GUID. + */ +static void +csr1212_check_crc(const u32 *buffer, size_t length, u16 crc, __be32 *guid) +{ + static u64 last_bad_eui64; + u64 eui64 = ((u64)be32_to_cpu(guid[0]) << 32) | be32_to_cpu(guid[1]); + + if (csr1212_crc16(buffer, length) == crc || + csr1212_msft_crc16(buffer, length) == crc || + eui64 == last_bad_eui64) + return; + + printk(KERN_DEBUG "ieee1394: config ROM CRC error\n"); + last_bad_eui64 = eui64; +} /* Parse a chunk of data as a Config ROM */ @@ -1092,11 +1110,8 @@ static int csr1212_parse_bus_info_block(struct csr1212_csr *csr) return ret; } - /* Apparently there are many different wrong implementations of the CRC - * algorithm. We don't fail, we just warn. */ - if ((csr1212_crc16(bi->data, bi->crc_length) != bi->crc) && - (csr1212_msft_crc16(bi->data, bi->crc_length) != bi->crc)) - printk(KERN_DEBUG "IEEE 1394 device has ROM CRC error\n"); + csr1212_check_crc(bi->data, bi->crc_length, bi->crc, + &csr->bus_info_data[3]); cr = CSR1212_MALLOC(sizeof(*cr)); if (!cr) @@ -1205,11 +1220,8 @@ int csr1212_parse_keyval(struct csr1212_keyval *kv, &cache->data[bytes_to_quads(kv->offset - cache->offset)]; kvi_len = be16_to_cpu(kvi->length); - /* Apparently there are many different wrong implementations of the CRC - * algorithm. We don't fail, we just warn. */ - if ((csr1212_crc16(kvi->data, kvi_len) != kvi->crc) && - (csr1212_msft_crc16(kvi->data, kvi_len) != kvi->crc)) - printk(KERN_DEBUG "IEEE 1394 device has ROM CRC error\n"); + /* GUID is wrong in here in case of extended ROM. We don't care. */ + csr1212_check_crc(kvi->data, kvi_len, kvi->crc, &cache->data[3]); switch (kv->key.type) { case CSR1212_KV_TYPE_DIRECTORY: diff --git a/drivers/ieee1394/dma.c b/drivers/ieee1394/dma.c index 73685e7..1aba8c1 100644 --- a/drivers/ieee1394/dma.c +++ b/drivers/ieee1394/dma.c @@ -274,7 +274,7 @@ int dma_region_mmap(struct dma_region *dma, struct file *file, vma->vm_ops = &dma_region_vm_ops; vma->vm_private_data = dma; vma->vm_file = file; - vma->vm_flags |= VM_RESERVED; + vma->vm_flags |= VM_RESERVED | VM_ALWAYSDUMP; return 0; } diff --git a/drivers/ieee1394/highlevel.c b/drivers/ieee1394/highlevel.c index fa2bfec..918ffc4 100644 --- a/drivers/ieee1394/highlevel.c +++ b/drivers/ieee1394/highlevel.c @@ -228,10 +228,8 @@ void hpsb_register_highlevel(struct hpsb_highlevel *hl) { unsigned long flags; + hpsb_init_highlevel(hl); INIT_LIST_HEAD(&hl->addr_list); - INIT_LIST_HEAD(&hl->host_info_list); - - rwlock_init(&hl->host_info_lock); down_write(&hl_drivers_sem); list_add_tail(&hl->hl_list, &hl_drivers); diff --git a/drivers/ieee1394/highlevel.h b/drivers/ieee1394/highlevel.h index eb9fe32..bc5d085 100644 --- a/drivers/ieee1394/highlevel.h +++ b/drivers/ieee1394/highlevel.h @@ -2,7 +2,7 @@ #define IEEE1394_HIGHLEVEL_H #include <linux/list.h> -#include <linux/spinlock_types.h> +#include <linux/spinlock.h> #include <linux/types.h> struct module; @@ -103,6 +103,17 @@ int highlevel_lock64(struct hpsb_host *host, int nodeid, octlet_t *store, void highlevel_fcp_request(struct hpsb_host *host, int nodeid, int direction, void *data, size_t length); +/** + * hpsb_init_highlevel - initialize a struct hpsb_highlevel + * + * This is only necessary if hpsb_get_hostinfo_bykey can be called + * before hpsb_register_highlevel. + */ +static inline void hpsb_init_highlevel(struct hpsb_highlevel *hl) +{ + rwlock_init(&hl->host_info_lock); + INIT_LIST_HEAD(&hl->host_info_list); +} void hpsb_register_highlevel(struct hpsb_highlevel *hl); void hpsb_unregister_highlevel(struct hpsb_highlevel *hl); diff --git a/drivers/ieee1394/raw1394.c b/drivers/ieee1394/raw1394.c index ec2a0ad..96f2847 100644 --- a/drivers/ieee1394/raw1394.c +++ b/drivers/ieee1394/raw1394.c @@ -2549,8 +2549,8 @@ static int raw1394_mmap(struct file *file, struct vm_area_struct *vma) } /* ioctl is only used for rawiso operations */ -static int raw1394_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) +static long do_raw1394_ioctl(struct file *file, unsigned int cmd, + unsigned long arg) { struct file_info *fi = file->private_data; void __user *argp = (void __user *)arg; @@ -2656,6 +2656,16 @@ static int raw1394_ioctl(struct inode *inode, struct file *file, return -EINVAL; } +static long raw1394_ioctl(struct file *file, unsigned int cmd, + unsigned long arg) +{ + long ret; + lock_kernel(); + ret = do_raw1394_ioctl(file, cmd, arg); + unlock_kernel(); + return ret; +} + #ifdef CONFIG_COMPAT struct raw1394_iso_packets32 { __u32 n_packets; @@ -2690,7 +2700,7 @@ static long raw1394_iso_xmit_recv_packets32(struct file *file, unsigned int cmd, !copy_from_user(&infos32, &arg->infos, sizeof infos32)) { infos = compat_ptr(infos32); if (!copy_to_user(&dst->infos, &infos, sizeof infos)) - err = raw1394_ioctl(NULL, file, cmd, (unsigned long)dst); + err = do_raw1394_ioctl(file, cmd, (unsigned long)dst); } return err; } @@ -2731,7 +2741,7 @@ static long raw1394_compat_ioctl(struct file *file, case RAW1394_IOC_ISO_GET_STATUS: case RAW1394_IOC_ISO_SHUTDOWN: case RAW1394_IOC_ISO_QUEUE_ACTIVITY: - err = raw1394_ioctl(NULL, file, cmd, arg); + err = do_raw1394_ioctl(file, cmd, arg); break; /* These request have different format. */ case RAW1394_IOC_ISO_RECV_PACKETS32: @@ -2984,7 +2994,7 @@ static const struct file_operations raw1394_fops = { .read = raw1394_read, .write = raw1394_write, .mmap = raw1394_mmap, - .ioctl = raw1394_ioctl, + .unlocked_ioctl = raw1394_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = raw1394_compat_ioctl, #endif diff --git a/drivers/ieee1394/video1394.c b/drivers/ieee1394/video1394.c index e24772d..069b9f6 100644 --- a/drivers/ieee1394/video1394.c +++ b/drivers/ieee1394/video1394.c @@ -1503,6 +1503,8 @@ static int __init video1394_init_module (void) { int ret; + hpsb_init_highlevel(&video1394_highlevel); + cdev_init(&video1394_cdev, &video1394_fops); video1394_cdev.owner = THIS_MODULE; ret = cdev_add(&video1394_cdev, IEEE1394_VIDEO1394_DEV, 16); |