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| author | Arnd Bergmann <arnd@arndb.de> | 2018-09-11 18:28:08 +0300 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2019-10-23 18:23:44 +0300 |
| commit | 01b8bca81e181ccca475e1fdb92ebb00d9d9b547 (patch) | |
| tree | add9d3a93003f7e21c9ede260d97c56b5284fbda /drivers/scsi/megaraid | |
| parent | 1832f2d8ff69138aa70d3cb3b4ea3c2058e73aea (diff) | |
| download | linux-01b8bca81e181ccca475e1fdb92ebb00d9d9b547.tar.xz | |
compat_ioctl: use correct compat_ptr() translation in drivers
A handful of drivers all have a trivial wrapper around their ioctl
handler, but don't call the compat_ptr() conversion function at the
moment. In practice this does not matter, since none of them are used
on the s390 architecture and for all other architectures, compat_ptr()
does not do anything, but using the new compat_ptr_ioctl()
helper makes it more correct in theory, and simplifies the code.
I checked that all ioctl handlers in these files are compatible
and take either pointer arguments or no argument.
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/scsi/megaraid')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_mm.c | 28 |
1 files changed, 1 insertions, 27 deletions
diff --git a/drivers/scsi/megaraid/megaraid_mm.c b/drivers/scsi/megaraid/megaraid_mm.c index 59cca898f088..e83163c66884 100644 --- a/drivers/scsi/megaraid/megaraid_mm.c +++ b/drivers/scsi/megaraid/megaraid_mm.c @@ -41,10 +41,6 @@ static int mraid_mm_setup_dma_pools(mraid_mmadp_t *); static void mraid_mm_free_adp_resources(mraid_mmadp_t *); static void mraid_mm_teardown_dma_pools(mraid_mmadp_t *); -#ifdef CONFIG_COMPAT -static long mraid_mm_compat_ioctl(struct file *, unsigned int, unsigned long); -#endif - MODULE_AUTHOR("LSI Logic Corporation"); MODULE_DESCRIPTION("LSI Logic Management Module"); MODULE_LICENSE("GPL"); @@ -68,9 +64,7 @@ static wait_queue_head_t wait_q; static const struct file_operations lsi_fops = { .open = mraid_mm_open, .unlocked_ioctl = mraid_mm_unlocked_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = mraid_mm_compat_ioctl, -#endif + .compat_ioctl = compat_ptr_ioctl, .owner = THIS_MODULE, .llseek = noop_llseek, }; @@ -224,7 +218,6 @@ mraid_mm_unlocked_ioctl(struct file *filep, unsigned int cmd, { int err; - /* inconsistent: mraid_mm_compat_ioctl doesn't take the BKL */ mutex_lock(&mraid_mm_mutex); err = mraid_mm_ioctl(filep, cmd, arg); mutex_unlock(&mraid_mm_mutex); @@ -1228,25 +1221,6 @@ mraid_mm_init(void) } -#ifdef CONFIG_COMPAT -/** - * mraid_mm_compat_ioctl - 32bit to 64bit ioctl conversion routine - * @filep : file operations pointer (ignored) - * @cmd : ioctl command - * @arg : user ioctl packet - */ -static long -mraid_mm_compat_ioctl(struct file *filep, unsigned int cmd, - unsigned long arg) -{ - int err; - - err = mraid_mm_ioctl(filep, cmd, arg); - - return err; -} -#endif - /** * mraid_mm_exit - Module exit point */ |