Move stack parameters for sed_ioctl to prevent oversized stack with CONFIG_KASAN

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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: 455a7b238c ("block: Add Sed-opal library")

Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Scott Bauer <scott.bauer@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

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This commit is contained in:

Scott Bauer 2017-02-14 17:29:36 -07:00 • committed by Jens Axboe

parent 24bff4d78a

commit e225c20eb0

3 changed files with 50 additions and 90 deletions

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133

block/sed-opal.c

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3

drivers/nvme/host/core.c

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4

include/linux/sed-opal.h

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