From d22c3e0088e85be8131f7a9283f759cdbb20726d Mon Sep 17 00:00:00 2001 From: Sven Schnelle Date: Wed, 9 Sep 2026 11:29:53 +0200 Subject: selftests/ftrace: Fix unique symbol check in kprobe_non_uniq_symbol.tc The current regex also matches symbols in modules, which makes the test fail on s390 where name_show is present only once in the kernel, but also multiple times in modules: 000001b1401cdc20 t name_show 000001b0c05e6c40 t name_show [mdev] 000001b0c0495f30 t name_show [i2c_core] Fix this by changing the regular expression to only match the function name. Link: https://lore.kernel.org/all/20260909092954.2200558-1-svens@linux.ibm.com/ Fixes: 03b80ff8023a ("selftests/ftrace: Add new test case which checks non unique symbol") Signed-off-by: Sven Schnelle Reviewed-by: Steven Rostedt Signed-off-by: Masami Hiramatsu (Google) --- fs/befs/inode.c | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 fs/befs/inode.c (limited to 'fs/befs/inode.c') diff --git a/fs/befs/inode.c b/fs/befs/inode.c new file mode 100644 index 000000000..791b46a6f --- /dev/null +++ b/fs/befs/inode.c @@ -0,0 +1,55 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * inode.c + * + * Copyright (C) 2001 Will Dyson + */ + +#include + +#include "befs.h" +#include "inode.h" + +/* + * Validates the correctness of the befs inode + * Returns BEFS_OK if the inode should be used, otherwise + * returns BEFS_BAD_INODE + */ +int +befs_check_inode(struct super_block *sb, befs_inode *raw_inode, + befs_blocknr_t inode) +{ + u32 magic1 = fs32_to_cpu(sb, raw_inode->magic1); + befs_inode_addr ino_num = fsrun_to_cpu(sb, raw_inode->inode_num); + u32 flags = fs32_to_cpu(sb, raw_inode->flags); + + /* check magic header. */ + if (magic1 != BEFS_INODE_MAGIC1) { + befs_error(sb, + "Inode has a bad magic header - inode = %lu", + (unsigned long)inode); + return BEFS_BAD_INODE; + } + + /* + * Sanity check2: inodes store their own block address. Check it. + */ + if (inode != iaddr2blockno(sb, &ino_num)) { + befs_error(sb, "inode blocknr field disagrees with vfs " + "VFS: %lu, Inode %lu", (unsigned long) + inode, (unsigned long)iaddr2blockno(sb, &ino_num)); + return BEFS_BAD_INODE; + } + + /* + * check flag + */ + + if (!(flags & BEFS_INODE_IN_USE)) { + befs_error(sb, "inode is not used - inode = %lu", + (unsigned long)inode); + return BEFS_BAD_INODE; + } + + return BEFS_OK; +} -- cgit v1.3.1