Hi all, After merging the mtd tree, today's linux-next build (arm multi_v7_defconfig) produced this warning: drivers/mtd/ubi/debug.c: In function 'ubi_debugfs_init_dev': drivers/mtd/ubi/debug.c:512:6: warning: unused variable 'err' [-Wunused-variable] 512 | int err, n; | ^~~ Introduced by commit 3427dd213259 ("mtd: no need to check return value of debugfs_create functions") -- Cheers, Stephen Rothwell