tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 47762f08697484cf0c2f2904b8c52375ed26c8cb commit: 4943b66df18a0e8aedd006792ed73257cd2da8f8 [2144/10848] seccomp: don't use semaphore and wait_queue together config: um-i386_defconfig (https://download.01.org/0day-ci/archive/20230817/202308171742.AncabIG1-lkp@xxxxxxxxx/config) compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0 reproduce: (https://download.01.org/0day-ci/archive/20230817/202308171742.AncabIG1-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202308171742.AncabIG1-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): kernel/seccomp.c:133: warning: Function parameter or member 'setfd' not described in 'seccomp_kaddfd' kernel/seccomp.c:133: warning: Function parameter or member 'list' not described in 'seccomp_kaddfd' >> kernel/seccomp.c:151: warning: Function parameter or member 'requests' not described in 'notification' kernel/seccomp.c:563: warning: Function parameter or member 'tsk' not described in 'seccomp_filter_release' kernel/seccomp.c:583: warning: Function parameter or member 'flags' not described in 'seccomp_sync_threads' vim +151 kernel/seccomp.c 7cf97b12545503 Sargun Dhillon 2020-06-02 103 7cf97b12545503 Sargun Dhillon 2020-06-02 104 /** 7cf97b12545503 Sargun Dhillon 2020-06-02 105 * struct seccomp_kaddfd - container for seccomp_addfd ioctl messages 7cf97b12545503 Sargun Dhillon 2020-06-02 106 * 7cf97b12545503 Sargun Dhillon 2020-06-02 107 * @file: A reference to the file to install in the other task 7cf97b12545503 Sargun Dhillon 2020-06-02 108 * @fd: The fd number to install it at. If the fd number is -1, it means the 7cf97b12545503 Sargun Dhillon 2020-06-02 109 * installing process should allocate the fd as normal. 7cf97b12545503 Sargun Dhillon 2020-06-02 110 * @flags: The flags for the new file descriptor. At the moment, only O_CLOEXEC 7cf97b12545503 Sargun Dhillon 2020-06-02 111 * is allowed. 0ae71c7720e3ae Rodrigo Campos 2021-05-17 112 * @ioctl_flags: The flags used for the seccomp_addfd ioctl. 7cf97b12545503 Sargun Dhillon 2020-06-02 113 * @ret: The return value of the installing process. It is set to the fd num 7cf97b12545503 Sargun Dhillon 2020-06-02 114 * upon success (>= 0). 7cf97b12545503 Sargun Dhillon 2020-06-02 115 * @completion: Indicates that the installing process has completed fd 7cf97b12545503 Sargun Dhillon 2020-06-02 116 * installation, or gone away (either due to successful 7cf97b12545503 Sargun Dhillon 2020-06-02 117 * reply, or signal) 7cf97b12545503 Sargun Dhillon 2020-06-02 118 * 7cf97b12545503 Sargun Dhillon 2020-06-02 119 */ 7cf97b12545503 Sargun Dhillon 2020-06-02 120 struct seccomp_kaddfd { 7cf97b12545503 Sargun Dhillon 2020-06-02 121 struct file *file; 7cf97b12545503 Sargun Dhillon 2020-06-02 122 int fd; 7cf97b12545503 Sargun Dhillon 2020-06-02 123 unsigned int flags; 0ae71c7720e3ae Rodrigo Campos 2021-05-17 124 __u32 ioctl_flags; 7cf97b12545503 Sargun Dhillon 2020-06-02 125 42eb0d54c08a03 Christoph Hellwig 2021-03-25 126 union { 42eb0d54c08a03 Christoph Hellwig 2021-03-25 127 bool setfd; 7cf97b12545503 Sargun Dhillon 2020-06-02 128 /* To only be set on reply */ 7cf97b12545503 Sargun Dhillon 2020-06-02 129 int ret; 42eb0d54c08a03 Christoph Hellwig 2021-03-25 130 }; 7cf97b12545503 Sargun Dhillon 2020-06-02 131 struct completion completion; 7cf97b12545503 Sargun Dhillon 2020-06-02 132 struct list_head list; 6a21cc50f0c7f8 Tycho Andersen 2018-12-09 @133 }; 6a21cc50f0c7f8 Tycho Andersen 2018-12-09 134 6a21cc50f0c7f8 Tycho Andersen 2018-12-09 135 /** 6a21cc50f0c7f8 Tycho Andersen 2018-12-09 136 * struct notification - container for seccomp userspace notifications. Since 6a21cc50f0c7f8 Tycho Andersen 2018-12-09 137 * most seccomp filters will not have notification listeners attached and this 6a21cc50f0c7f8 Tycho Andersen 2018-12-09 138 * structure is fairly large, we store the notification-specific stuff in a 6a21cc50f0c7f8 Tycho Andersen 2018-12-09 139 * separate structure. 6a21cc50f0c7f8 Tycho Andersen 2018-12-09 140 * 6a21cc50f0c7f8 Tycho Andersen 2018-12-09 141 * @request: A semaphore that users of this notification can wait on for 6a21cc50f0c7f8 Tycho Andersen 2018-12-09 142 * changes. Actual reads and writes are still controlled with 6a21cc50f0c7f8 Tycho Andersen 2018-12-09 143 * filter->notify_lock. 6a21cc50f0c7f8 Tycho Andersen 2018-12-09 144 * @next_id: The id of the next request. 6a21cc50f0c7f8 Tycho Andersen 2018-12-09 145 * @notifications: A list of struct seccomp_knotif elements. 6a21cc50f0c7f8 Tycho Andersen 2018-12-09 146 */ 6a21cc50f0c7f8 Tycho Andersen 2018-12-09 147 struct notification { 4943b66df18a0e Andrei Vagin 2023-03-07 148 atomic_t requests; 6a21cc50f0c7f8 Tycho Andersen 2018-12-09 149 u64 next_id; 6a21cc50f0c7f8 Tycho Andersen 2018-12-09 150 struct list_head notifications; 6a21cc50f0c7f8 Tycho Andersen 2018-12-09 @151 }; e2cfabdfd07564 Will Drewry 2012-04-12 152 :::::: The code at line 151 was first introduced by commit :::::: 6a21cc50f0c7f87dae5259f6cfefe024412313f6 seccomp: add a return code to trap to userspace :::::: TO: Tycho Andersen <tycho@xxxxxxxx> :::::: CC: Kees Cook <keescook@xxxxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
