diff --git a/arch/cris/arch-v10/drivers/eeprom.c b/arch/cris/arch-v10/drivers/eeprom.c index f1cac9dc75b8150bfdad17e904450f7738428438..40c6fe4c06f4a010a7fd4a264d36f2d4ac3cf5c9 100644 --- a/arch/cris/arch-v10/drivers/eeprom.c +++ b/arch/cris/arch-v10/drivers/eeprom.c @@ -375,7 +375,7 @@ int __init eeprom_init(void) } /* Opens the device. */ - +/* BKL not needed: no global resources accessed */ static int eeprom_open(struct inode * inode, struct file * file) { diff --git a/arch/cris/arch-v32/drivers/cryptocop.c b/arch/cris/arch-v32/drivers/cryptocop.c index 9fb58202be99b8d54d729c161dba9983cc29352d..c17204289575865513974b9e41fdea1730981a70 100644 --- a/arch/cris/arch-v32/drivers/cryptocop.c +++ b/arch/cris/arch-v32/drivers/cryptocop.c @@ -2302,7 +2302,7 @@ static int cryptocop_job_setup(struct cryptocop_prio_job **pj, struct cryptocop_ return 0; } - +/* No BKL needed here - no global resources accessed */ static int cryptocop_open(struct inode *inode, struct file *filp) { int p = iminor(inode); diff --git a/drivers/char/cs5535_gpio.c b/drivers/char/cs5535_gpio.c index c0a4a0bb509e77397875b023bc4ad4f1324946bf..628e3d3249d216fed6842af53c514514989ff84f 100644 --- a/drivers/char/cs5535_gpio.c +++ b/drivers/char/cs5535_gpio.c @@ -153,6 +153,8 @@ static ssize_t cs5535_gpio_read(struct file *file, char __user *buf, return count; } +/* No BKL needed here - "mask" is the only global resource used + here and it's a boot-time parameter */ static int cs5535_gpio_open(struct inode *inode, struct file *file) { u32 m = iminor(inode); diff --git a/drivers/char/dtlk.c b/drivers/char/dtlk.c index abde6ddefe696e7e0af352e918085c68a83f4d89..433388c6023565fdb0f7dffe6587e86b172ecc17 100644 --- a/drivers/char/dtlk.c +++ b/drivers/char/dtlk.c @@ -288,6 +288,8 @@ static int dtlk_ioctl(struct inode *inode, } } +/* No BKL needed here; "dtlk_busy" is the only global resource, + and it is not ever set by anybody (test is broken) */ static int dtlk_open(struct inode *inode, struct file *file) { TRACE_TEXT("(dtlk_open"); diff --git a/drivers/char/pc8736x_gpio.c b/drivers/char/pc8736x_gpio.c index ecfaf180e5bd8b106ee12e06da33fc0c1a88f702..8715dc9f4a531f2f64445642970e6c603f04ba82 100644 --- a/drivers/char/pc8736x_gpio.c +++ b/drivers/char/pc8736x_gpio.c @@ -212,6 +212,7 @@ static struct nsc_gpio_ops pc8736x_gpio_ops = { .gpio_current = pc8736x_gpio_current }; +/* No BKL needed here; no global resources accessed */ static int pc8736x_gpio_open(struct inode *inode, struct file *file) { unsigned m = iminor(inode); diff --git a/drivers/char/ppdev.c b/drivers/char/ppdev.c index 3aab837d9480ae57e66fb9f438e76efd263fea95..ce1987574888370c86b5076e51905dfe5b6bfa6f 100644 --- a/drivers/char/ppdev.c +++ b/drivers/char/ppdev.c @@ -633,6 +633,7 @@ static int pp_ioctl(struct inode *inode, struct file *file, return 0; } +/* No BKL needed here: only local resources used */ static int pp_open (struct inode * inode, struct file * file) { unsigned int minor = iminor(inode); diff --git a/drivers/char/scx200_gpio.c b/drivers/char/scx200_gpio.c index 99e5272e3c53e1ef1aa32f0733b1bbf0e9f2487e..be2c623a9862f6cfa80cfe0170acc3ce15e3161c 100644 --- a/drivers/char/scx200_gpio.c +++ b/drivers/char/scx200_gpio.c @@ -46,6 +46,7 @@ struct nsc_gpio_ops scx200_gpio_ops = { }; EXPORT_SYMBOL_GPL(scx200_gpio_ops); +/* No BKL needed here: no global resources used */ static int scx200_gpio_open(struct inode *inode, struct file *file) { unsigned m = iminor(inode); diff --git a/drivers/char/tb0219.c b/drivers/char/tb0219.c index 4c431cb7cf1b1f21f1c32389d738c005c0df7a9d..db8c2ca2ce4cf2b3d2c0f5e824abc08cda220ed6 100644 --- a/drivers/char/tb0219.c +++ b/drivers/char/tb0219.c @@ -232,6 +232,7 @@ static ssize_t tanbac_tb0219_write(struct file *file, const char __user *data, return i; } +/* No BKL needed here; no global resources accessed */ static int tanbac_tb0219_open(struct inode *inode, struct file *file) { unsigned int minor; diff --git a/drivers/char/vr41xx_giu.c b/drivers/char/vr41xx_giu.c index e5ed09192be8675b615f6978dcf92f41a3dcf316..412937fdb958da364bba8cbe5686a16527b1d8de 100644 --- a/drivers/char/vr41xx_giu.c +++ b/drivers/char/vr41xx_giu.c @@ -543,6 +543,8 @@ static ssize_t gpio_write(struct file *file, const char __user *data, return i; } +/* No BKL needed here; only global (giu_nr_pins) is only set + at probe time */ static int gpio_open(struct inode *inode, struct file *file) { unsigned int pin; diff --git a/drivers/infiniband/core/ucm.c b/drivers/infiniband/core/ucm.c index d7a6881b571d990ec1fd47ba959126ac68a64b7e..3e6a8ff6d76cbc47019160a58a17e1e023f3ff26 100644 --- a/drivers/infiniband/core/ucm.c +++ b/drivers/infiniband/core/ucm.c @@ -1155,6 +1155,7 @@ static unsigned int ib_ucm_poll(struct file *filp, return mask; } +/* No BKL needed here: no global resources used */ static int ib_ucm_open(struct inode *inode, struct file *filp) { struct ib_ucm_file *file; diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c index b472b15637f003da8b1a980a2d62206fb9c51eb3..e80cfbd4f3fd2d2536282a4d5e258ff8482b7155 100644 --- a/drivers/infiniband/hw/ipath/ipath_file_ops.c +++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c @@ -1812,6 +1812,7 @@ static int find_shared_port(struct file *fp, return ret; } +/* No BKL needed here */ static int ipath_open(struct inode *in, struct file *fp) { /* The real work is performed later in ipath_assign_port() */ diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c index 1f4ca2b54a73370213d1ce162c5c048e00bfc732..dc8505062da7252d397787015c46c7f7d3e22805 100644 --- a/drivers/net/ppp_generic.c +++ b/drivers/net/ppp_generic.c @@ -351,6 +351,7 @@ static const int npindex_to_ethertype[NUM_NP] = { * Open instances of /dev/ppp can be in one of three states: * unattached, attached to a ppp unit, or attached to a ppp channel. */ +/* No BKL needed here */ static int ppp_open(struct inode *inode, struct file *file) { /* diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c index b31faeccb9cde4f0e15a762e38c777ba6a2ea976..2239d16fb9b568225df0fa5e0e26eaec4a2be5f7 100644 --- a/drivers/scsi/3w-9xxx.c +++ b/drivers/scsi/3w-9xxx.c @@ -862,6 +862,8 @@ static int twa_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int } /* End twa_chrdev_ioctl() */ /* This function handles open for the character device */ +/* NOTE that this function will race with remove; adding BKL + will not help. */ static int twa_chrdev_open(struct inode *inode, struct file *file) { unsigned int minor_number; diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c index 8c22329aa85e1585035127185c0597cb51a95827..bbff029536ea3dda3dfdd39f4f20734ded7b91c4 100644 --- a/drivers/scsi/3w-xxxx.c +++ b/drivers/scsi/3w-xxxx.c @@ -1027,6 +1027,8 @@ static int tw_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int } /* End tw_chrdev_ioctl() */ /* This function handles open for the character device */ +/* NOTE that this function races with remove - adding BKL + won't help */ static int tw_chrdev_open(struct inode *inode, struct file *file) { unsigned int minor_number; diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c index 18551aaf5e094e07612ddf028df0dc7f2a05d344..c9aa2c45a6992dc2ec65e5b86b6d8d3f7c9f0031 100644 --- a/drivers/scsi/megaraid.c +++ b/drivers/scsi/megaraid.c @@ -3272,8 +3272,9 @@ mega_init_scb(adapter_t *adapter) * @filep - unused * * Routines for the character/ioctl interface to the driver. Find out if this - * is a valid open. If yes, increment the module use count so that it cannot - * be unloaded. + * is a valid open. + * + * No BKL needed here. */ static int megadev_open (struct inode *inode, struct file *filep) diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c index 7d84c8bbcf3fc1a55b8a9c04cbc65e2e05b33902..81374b7c555ce926a4be6321b0b95ec29eb39d4e 100644 --- a/drivers/scsi/megaraid/megaraid_sas.c +++ b/drivers/scsi/megaraid/megaraid_sas.c @@ -2860,6 +2860,7 @@ static void megasas_shutdown(struct pci_dev *pdev) /** * megasas_mgmt_open - char node "open" entry point + * No BKL is needed here. */ static int megasas_mgmt_open(struct inode *inode, struct file *filep) {