/****************************************************************************** * * Module Name: osunixdir - Unix directory access interfaces * *****************************************************************************/ /* * Copyright (C) 2000 - 2016, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions, and the following disclaimer, * without modification. * 2. Redistributions in binary form must reproduce at minimum a disclaimer * substantially similar to the "NO WARRANTY" disclaimer below * ("Disclaimer") and any redistribution must be conditioned upon * including a substantially similar Disclaimer requirement for further * binary redistribution. * 3. Neither the names of the above-listed copyright holders nor the names * of any contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * Alternatively, this software may be distributed under the terms of the * GNU General Public License ("GPL") version 2 as published by the Free * Software Foundation. * * NO WARRANTY * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGES. */ #include #include #include #include #include #include #include #include /* * Allocated structure returned from os_open_directory */ typedef struct external_find_info { char *dir_pathname; DIR *dir_ptr; char temp_buffer[256]; char *wildcard_spec; char requested_file_type; } external_find_info; /******************************************************************************* * * FUNCTION: acpi_os_open_directory * * PARAMETERS: dir_pathname - Full pathname to the directory * wildcard_spec - string of the form "*.c", etc. * * RETURN: A directory "handle" to be used in subsequent search operations. * NULL returned on failure. * * DESCRIPTION: Open a directory in preparation for a wildcard search * ******************************************************************************/ void *acpi_os_open_directory(char *dir_pathname, char *wildcard_spec, char requested_file_type) { struct external_find_info *external_info; DIR *dir; /* Allocate the info struct that will be returned to the caller */ external_info = calloc(1, sizeof(struct external_find_info)); if (!external_info) { return (NULL); } /* Get the directory stream */ dir = opendir(dir_pathname); if (!dir) { fprintf(stderr, "Cannot open directory - %s\n", dir_pathname); free(external_info); return (NULL); } /* Save the info in the return structure */ external_info->wildcard_spec = wildcard_spec; external_info->requested_file_type = requested_file_type; external_info->dir_pathname = dir_pathname; external_info->dir_ptr = dir; return (external_info); } /******************************************************************************* * * FUNCTION: acpi_os_get_next_filename * * PARAMETERS: dir_handle - Created via acpi_os_open_directory * * RETURN: Next filename matched. NULL if no more matches. * * DESCRIPTION: Get the next file in the directory that matches the wildcard * specification. * ******************************************************************************/ char *acpi_os_get_next_filename(void *dir_handle) { struct external_find_info *external_info = dir_handle; struct dirent *dir_entry; char *temp_str; int str_len; struct stat temp_stat; int err; while ((dir_entry = readdir(external_info->dir_ptr))) { if (!fnmatch (external_info->wildcard_spec, dir_entry->d_name, 0)) { if (dir_entry->d_name[0] == '.') { continue; } str_len = strlen(dir_entry->d_name) + strlen(external_info->dir_pathname) + 2; temp_str = calloc(str_len, 1); if (!temp_str) { fprintf(stderr, "Could not allocate buffer for temporary string\n"); return (NULL); } strcpy(temp_str, external_info->dir_pathname); strcat(temp_str, "/"); strcat(temp_str, dir_entry->d_name); err = stat(temp_str, &temp_stat); if (err == -1) { fprintf(stderr, "Cannot stat file (should not happen) - %s\n", temp_str); free(temp_str); return (NULL); } free(temp_str); if ((S_ISDIR(temp_stat.st_mode) && (external_info->requested_file_type == REQUEST_DIR_ONLY)) || ((!S_ISDIR(temp_stat.st_mode) && external_info->requested_file_type == REQUEST_FILE_ONLY))) { /* copy to a temp buffer because dir_entry struct is on the stack */ strcpy(external_info->temp_buffer, dir_entry->d_name); return (external_info->temp_buffer); } } } return (NULL); } /******************************************************************************* * * FUNCTION: acpi_os_close_directory * * PARAMETERS: dir_handle - Created via acpi_os_open_directory * * RETURN: None. * * DESCRIPTION: Close the open directory and cleanup. * ******************************************************************************/ void acpi_os_close_directory(void *dir_handle) { struct external_find_info *external_info = dir_handle; /* Close the directory and free allocations */ closedir(external_info->dir_ptr); free(dir_handle); } E CPU hotplug callback starts the timer with add_timer_on(). So the timer is already queued which triggers the BUG. Using add_timer_on() is pretty pointless in this code because the timer is strictlty per CPU, initialized as pinned and all operations which arm the timer happen on the CPU to which the timer belongs. Simplify the whole machinery by using mod_timer() instead of add_timer_on() which avoids the problem because mod_timer() can handle already queued timers. Use __start_timer() everywhere so the earliest armed expiry time is preserved. Reported-by: Erik Veijola <erik.veijola@intel.com> Tested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Borislav Petkov <bp@alien8.de> Cc: Tony Luck <tony.luck@intel.com> Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701310936080.3457@nanos Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'net/wireless/lib80211_crypt_ccmp.c')