5a0e3ad6af
percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
155 lines
4.3 KiB
C
155 lines
4.3 KiB
C
/*
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* Copyright (C) 2007-2009 B.A.T.M.A.N. contributors:
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*
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* Marek Lindner, Simon Wunderlich
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of version 2 of the GNU General Public
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* License as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA
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*
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*/
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/* Kernel Programming */
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#define LINUX
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#define DRIVER_AUTHOR "Marek Lindner <lindner_marek@yahoo.de>, Simon Wunderlich <siwu@hrz.tu-chemnitz.de>"
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#define DRIVER_DESC "B.A.T.M.A.N. advanced"
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#define DRIVER_DEVICE "batman-adv"
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#define SOURCE_VERSION "0.2.1-beta"
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/* B.A.T.M.A.N. parameters */
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#define TQ_MAX_VALUE 255
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#define JITTER 20
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#define TTL 50 /* Time To Live of broadcast messages */
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#define MAX_ADDR 16 /* number of interfaces which can be added to
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* batman. */
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#define PURGE_TIMEOUT 200000 /* purge originators after time in ms if no
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* valid packet comes in -> TODO: check
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* influence on TQ_LOCAL_WINDOW_SIZE */
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#define LOCAL_HNA_TIMEOUT 3600000
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#define TQ_LOCAL_WINDOW_SIZE 64 /* sliding packet range of received originator
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* messages in squence numbers (should be a
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* multiple of our word size) */
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#define TQ_GLOBAL_WINDOW_SIZE 5
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#define TQ_LOCAL_BIDRECT_SEND_MINIMUM 1
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#define TQ_LOCAL_BIDRECT_RECV_MINIMUM 1
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#define TQ_TOTAL_BIDRECT_LIMIT 1
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#define TQ_HOP_PENALTY 10
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#define NUM_WORDS (TQ_LOCAL_WINDOW_SIZE / WORD_BIT_SIZE)
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#define PACKBUFF_SIZE 2000
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#define LOG_BUF_LEN 8192 /* has to be a power of 2 */
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#define ETH_STR_LEN 20
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#define MAX_AGGREGATION_BYTES 512 /* should not be bigger than 512 bytes or
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* change the size of
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* forw_packet->direct_link_flags */
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#define MAX_AGGREGATION_MS 100
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#define MODULE_INACTIVE 0
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#define MODULE_ACTIVE 1
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#define MODULE_DEACTIVATING 2
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/*
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* Debug Messages
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*/
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#define DBG_BATMAN 1 /* all messages related to routing / flooding /
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* broadcasting / etc */
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#define DBG_ROUTES 2 /* route or hna added / changed / deleted */
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#ifdef CONFIG_BATMAN_ADV_DEBUG
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extern int debug;
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extern int bat_debug_type(int type);
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#define bat_dbg(type, fmt, arg...) do { \
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if (bat_debug_type(type)) \
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printk(KERN_DEBUG "batman-adv:" fmt, ## arg); \
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} \
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while (0)
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#else /* !CONFIG_BATMAN_ADV_DEBUG */
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#define bat_dbg(type, fmt, arg...) do { \
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} \
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while (0)
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#endif
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/*
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* Vis
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*/
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/* #define VIS_SUBCLUSTERS_DISABLED */
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/*
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* Kernel headers
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*/
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#include <linux/mutex.h> /* mutex */
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#include <linux/module.h> /* needed by all modules */
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#include <linux/netdevice.h> /* netdevice */
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#include <linux/if_ether.h> /* ethernet header */
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#include <linux/poll.h> /* poll_table */
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#include <linux/kthread.h> /* kernel threads */
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#include <linux/pkt_sched.h> /* schedule types */
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#include <linux/workqueue.h> /* workqueue */
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#include <linux/slab.h>
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#include <net/sock.h> /* struct sock */
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#include <linux/jiffies.h>
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#include "types.h"
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#ifndef REVISION_VERSION
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#define REVISION_VERSION_STR ""
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#else
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#define REVISION_VERSION_STR " "REVISION_VERSION
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#endif
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extern struct list_head if_list;
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extern struct hlist_head forw_bat_list;
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extern struct hlist_head forw_bcast_list;
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extern struct hashtable_t *orig_hash;
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extern spinlock_t orig_hash_lock;
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extern spinlock_t forw_bat_list_lock;
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extern spinlock_t forw_bcast_list_lock;
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extern atomic_t originator_interval;
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extern atomic_t vis_interval;
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extern atomic_t vis_mode;
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extern atomic_t aggregation_enabled;
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extern int16_t num_hna;
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extern int16_t num_ifs;
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extern struct net_device *soft_device;
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extern unsigned char broadcastAddr[];
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extern atomic_t module_state;
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extern struct workqueue_struct *bat_event_workqueue;
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void activate_module(void);
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void shutdown_module(void);
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void inc_module_count(void);
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void dec_module_count(void);
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int addr_to_string(char *buff, uint8_t *addr);
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int compare_orig(void *data1, void *data2);
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int choose_orig(void *data, int32_t size);
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int is_my_mac(uint8_t *addr);
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int is_bcast(uint8_t *addr);
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int is_mcast(uint8_t *addr);
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