From e225c20eb0fd0b6657e640408f11ee392dc82b5b Mon Sep 17 00:00:00 2001 From: Scott Bauer Date: Tue, 14 Feb 2017 17:29:36 -0700 Subject: Move stack parameters for sed_ioctl to prevent oversized stack with CONFIG_KASAN When CONFIG_KASAN is enabled, compilation fails: block/sed-opal.c: In function 'sed_ioctl': block/sed-opal.c:2447:1: error: the frame size of 2256 bytes is larger than 2048 bytes [-Werror=frame-larger-than=] Moved all the ioctl structures off the stack and dynamically allocate using _IOC_SIZE() Fixes: 455a7b238cd6 ("block: Add Sed-opal library") Reported-by: Arnd Bergmann Signed-off-by: Scott Bauer Signed-off-by: Jens Axboe --- include/linux/sed-opal.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux/sed-opal.h') diff --git a/include/linux/sed-opal.h b/include/linux/sed-opal.h index af1a85eae193..205d520ea688 100644 --- a/include/linux/sed-opal.h +++ b/include/linux/sed-opal.h @@ -132,7 +132,7 @@ struct opal_dev { #ifdef CONFIG_BLK_SED_OPAL bool opal_unlock_from_suspend(struct opal_dev *dev); void init_opal_dev(struct opal_dev *opal_dev, sec_send_recv *send_recv); -int sed_ioctl(struct opal_dev *dev, unsigned int cmd, unsigned long ptr); +int sed_ioctl(struct opal_dev *dev, unsigned int cmd, void __user *ioctl_ptr); static inline bool is_sed_ioctl(unsigned int cmd) { @@ -160,7 +160,7 @@ static inline bool is_sed_ioctl(unsigned int cmd) } static inline int sed_ioctl(struct opal_dev *dev, unsigned int cmd, - unsigned long ptr) + void __user *ioctl_ptr) { return 0; } -- cgit v1.2.1