Hi, there I'm having errors while compiling the kernel by running "make headers_check". The errors are as follows:
CHECK include/linux (377 files) /sources/linux-3.5.2/usr/include/linux/kexec.h:49: userspace cannot reference function or variable defined in the kernel /sources/linux-3.5.2/usr/include/linux/soundcard.h:1054: userspace cannot reference function or variable defined in the kernel CHECK include/mtd (5 files) The 49th line of kexec.h is like this: Line#45 /* Load a new kernel image as described by the kexec_segment array Line#46 * consisting of passed number of segments at the entry-point address. Line#47 * The flags allow different useage types. Line#48 */ Line#49 extern int kexec_load(void *, size_t, struct kexec_segment *, Line#50 unsigned long int); The 1054th line of soundcard.h is like this: Line#1036 /* Line#1037 * Some convenience macros to simplify programming of the Line#1038 * /dev/sequencer interface Line#1039 * Line#1040 * This is a legacy interface for applications written against Line#1041 * the OSSlib-3.8 style interface. It is no longer possible Line#1042 * to actually link against OSSlib with this header, but we Line#1043 * still provide these macros for programs using them. Line#1044 * Line#1045 * If you want to use OSSlib, it is recommended that you get Line#1046 * the GPL version of OSS-4.x and build against that version Line#1047 * of the header. Line#1048 * Line#1049 * We redefine the extern keyword so that make headers_check Line#1050 * does not complain about SEQ_USE_EXTBUF. Line#1051 */ Line#1052 #define SEQ_DECLAREBUF() SEQ_USE_EXTBUF() Line#1053 Line#1054 void seqbuf_dump(void); /* This function must be provided by programs */ Line#1055 Line#1056 #define SEQ_PM_DEFINES int __foo_bar___ I understand that in soundcard.h file, the error might be harmless, but the one in kexec.h worries me. Is this error a road blocker for building my LFS system? If I need to fix this before going further, what should be the fix? And what does it mean by " userspace cannot reference function or variable defined in the kernel" anyway? Your help and guidance are highly appreciated. Thank you. Regards, Yida Zhang
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