I typoed (see CTL_UNNUMBRED should be CTL_UNNUMBERED) and got an
error which is fine but then sparse seg faulted! I think that is a
bug...
$ make CHECKFLAGS="-D__CHECK_ENDIAN__" C=2 modules
[snip]
CHECK fs/ntfs/sysctl.c
fs/ntfs/sysctl.c:38:15: error: undefined identifier 'CTL_UNNUMBRED'
/bin/sh: line 1: 26154 Segmentation fault sparse -
D__CHECK_ENDIAN__ -Wp,-MD,fs/ntfs/.sysctl.o.d -nostdinc -isystem /usr/
lib/gcc/i586-suse-linux/4.1.0/include -D__KERNEL__ -Iinclude -include
include/linux/autoconf.h -Wall -Wundef -Wstrict-prototypes -Wno-
trigraphs -fno-strict-aliasing -fno-common -Os -pipe -msoft-float -
mregparm=3 -mpreferred-stack-boundary=2 -march=i686 -mtune=pentium4 -
ffreestanding -maccumulate-outgoing-args -DCONFIG_AS_CFI=1 -
DCONFIG_AS_CFI_SIGNAL_FRAME=1 -Iinclude/asm-i386/mach-default -fno-
omit-frame-pointer -fno-optimize-sibling-calls -g -fno-stack-
protector -Wdeclaration-after-statement -Wno-pointer-sign -
DNTFS_VERSION=\"2.3\" -DDEBUG -DNTFS_RW -DMODULE -D"KBUILD_STR(s)=#s"
-D"KBUILD_BASENAME=KBUILD_STR(sysctl)" -D"KBUILD_MODNAME=KBUILD_STR
(ntfs)" fs/ntfs/sysctl.c
make[2]: *** [fs/ntfs/sysctl.o] Error 139
make[1]: *** [fs/ntfs] Error 2
make: *** [fs] Error 2
This is the code snippet should allow you to reproduce it:
#include <linux/module.h>
#include <linux/proc_fs.h>
#include <linux/sysctl.h>
extern int debug_msgs;
/* Definition of the ntfs sysctl. */
static ctl_table ntfs_sysctls[] = {
{
.ctl_name = CTL_UNNUMBRED, /* No binary ID. */
.procname = "ntfs-debug", /* Text ID. */
.data = &debug_msgs, /* Data pointer and
size. */
.maxlen = sizeof(debug_msgs),
.mode = 0644, /* Mode. */
.proc_handler = &proc_dointvec, /* Proc handler. */
},
{}
};
Fixing the typo allows it to complete:
CHECK fs/ntfs/sysctl.c
CC [M] fs/ntfs/sysctl.o
Best regards,
Anton
--
Anton Altaparmakov <aia21 at cam.ac.uk> (replace at with @)
Unix Support, Computing Service, University of Cambridge, CB2 3QH, UK
Linux NTFS maintainer, http://www.linux-ntfs.org/
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