kernel_optimize_test/kernel
Helge Deller 35dead4235 modules: don't export section names of empty sections via sysfs
On the parisc architecture we face for each and every loaded kernel module
this kernel "badness warning":
  sysfs: cannot create duplicate filename '/module/ac97_bus/sections/.text'
  Badness at fs/sysfs/dir.c:487

Reason for that is, that on parisc all kernel modules do have multiple
.text sections due to the usage of the -ffunction-sections compiler flag
which is needed to reach all jump targets on this platform.

An objdump on such a kernel module gives:
Sections:
Idx Name          Size      VMA       LMA       File off  Algn
  0 .note.gnu.build-id 00000024  00000000  00000000  00000034  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, DATA
  1 .text         00000000  00000000  00000000  00000058  2**0
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
  2 .text.ac97_bus_match 0000001c  00000000  00000000  00000058  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
  3 .text         00000000  00000000  00000000  000000d4  2**0
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
...
Since the .text sections are empty (size of 0 bytes) and won't be
loaded by the kernel module loader anyway, I don't see a reason
why such sections need to be listed under
/sys/module/<module_name>/sections/<section_name> either.

The attached patch does solve this issue by not exporting section
names which are empty.

This fixes bugzilla http://bugzilla.kernel.org/show_bug.cgi?id=14703

Signed-off-by: Helge Deller <deller@gmx.de>
CC: rusty@rustcorp.com.au
CC: akpm@linux-foundation.org
CC: James.Bottomley@HansenPartnership.com
CC: roland@redhat.com
CC: dave@hiauly1.hia.nrc.ca
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-02 15:38:25 -08:00
..
gcov
irq genirq: try_one_irq() must be called with irq disabled 2009-11-07 21:44:45 +01:00
power PM / Hibernate: Add newline to load_image() fail path 2009-11-03 11:03:09 +01:00
time headers: remove sched.h from interrupt.h 2009-10-11 11:20:58 -07:00
trace ftrace: Fix unmatched locking in ftrace_regex_write() 2009-11-04 01:42:10 -05:00
.gitignore
acct.c
async.c
audit_tree.c
audit_watch.c
audit.c
audit.h
auditfilter.c
auditsc.c
backtracetest.c
bounds.c
capability.c
cgroup_freezer.c
cgroup.c cgroup: fix strstrip() misuse 2009-10-29 07:39:25 -07:00
compat.c
configs.c
cpu.c
cpuset.c
cred-internals.h
cred.c
delayacct.c
dma.c
exec_domain.c
exit.c connector: fix regression introduced by sid connector 2009-10-29 07:39:25 -07:00
extable.c
fork.c Correct nr_processes() when CPUs have been unplugged 2009-11-03 07:52:39 -08:00
freezer.c
futex_compat.c
futex.c futex: Fix spurious wakeup for requeue_pi really 2009-10-28 20:34:34 +01:00
groups.c
hrtimer.c Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-10-05 12:04:16 -07:00
hung_task.c
itimer.c
kallsyms.c
Kconfig.freezer
Kconfig.hz
Kconfig.preempt
kexec.c
kfifo.c
kgdb.c
kmod.c
kprobes.c const: constify remaining file_operations 2009-10-01 16:11:11 -07:00
ksysfs.c
kthread.c sched: Fix kthread_bind() by moving the body of kthread_bind() to sched.c 2009-11-03 07:25:00 +01:00
latencytop.c
lockdep_internals.h
lockdep_proc.c
lockdep_states.h
lockdep.c lockdep: Use cpu_clock() for lockstat 2009-10-09 15:56:44 +02:00
Makefile SLOW_WORK: Move slow_work's proc file to debugfs 2009-12-01 08:20:31 -08:00
module.c modules: don't export section names of empty sections via sysfs 2009-12-02 15:38:25 -08:00
mutex-debug.c headers: remove sched.h from interrupt.h 2009-10-11 11:20:58 -07:00
mutex-debug.h
mutex.c
mutex.h
notifier.c
ns_cgroup.c
nsproxy.c
panic.c Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-10-08 12:16:35 -07:00
params.c param: fix setting arrays of bool 2009-10-29 08:56:20 +10:30
perf_event.c perf events: Don't generate events for the idle task when exclude_idle is set 2009-10-23 09:35:02 +02:00
pid_namespace.c
pid.c
pm_qos_params.c
posix-cpu-timers.c
posix-timers.c
printk.c
profile.c
ptrace.c
rcupdate.c rcu: Move rcu_barrier() to rcutree 2009-10-07 08:11:20 +02:00
rcutorture.c
rcutree_plugin.h rcu: Fix TREE_PREEMPT_RCU CPU_HOTPLUG bad-luck hang 2009-10-15 20:33:01 +02:00
rcutree_trace.c rcu: Make hot-unplugged CPU relinquish its own RCU callbacks 2009-10-07 08:11:20 +02:00
rcutree.c rcu: Fix long-grace-period race between forcing and initialization 2009-11-02 16:06:21 +01:00
rcutree.h rcu: Fix long-grace-period race between forcing and initialization 2009-11-02 16:06:21 +01:00
relay.c
res_counter.c memcg: some modification to softlimit under hierarchical memory reclaim. 2009-10-01 16:11:13 -07:00
resource.c
rtmutex_common.h
rtmutex-debug.c
rtmutex-debug.h
rtmutex-tester.c
rtmutex.c
rtmutex.h
rwsem.c
sched_clock.c sched_clock: Fix atomicity/continuity bug by using cmpxchg64() 2009-09-30 22:56:10 +02:00
sched_cpupri.c
sched_cpupri.h
sched_debug.c
sched_fair.c sched: Strengthen buddies and mitigate buddy induced latencies 2009-10-23 23:48:28 +02:00
sched_features.h
sched_idletask.c
sched_rt.c
sched_stats.h
sched.c sched: Use root_task_group_empty only with FAIR_GROUP_SCHED 2009-11-08 13:15:48 +01:00
seccomp.c
semaphore.c
signal.c
slow-work-debugfs.c SLOW_WORK: Move slow_work's proc file to debugfs 2009-12-01 08:20:31 -08:00
slow-work.c SLOW_WORK: Move slow_work's proc file to debugfs 2009-12-01 08:20:31 -08:00
slow-work.h SLOW_WORK: Move slow_work's proc file to debugfs 2009-12-01 08:20:31 -08:00
smp.c
softirq.c
softlockup.c
spinlock.c
srcu.c
stacktrace.c
stop_machine.c
sys_ni.c
sys.c Merge branch 'hwpoison-2.6.32' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6 2009-10-29 08:20:00 -07:00
sysctl_check.c sysctl: fix false positives when PROC_SYSCTL=n 2009-10-29 07:39:30 -07:00
sysctl.c
taskstats.c
test_kprobes.c
time.c
timeconst.pl
timer.c
tracepoint.c
tsacct.c
uid16.c
up.c
user_namespace.c
user.c uids: Prevent tear down race 2009-11-02 16:02:39 +01:00
utsname_sysctl.c
utsname.c
wait.c
workqueue.c workqueue: fix race condition in schedule_on_each_cpu() 2009-11-17 17:40:33 -08:00