Hi, I'm having trouble understanding symbol exports :( Some kernel modules, notably the ones from cpufreq, require an exported dmi_broken. The RH kernel sources I use as a base to patch i2c/lm_sensors 2.8.x upon, have a patch for exporting it, and dmi_scan.o/.ver have indeed the exported modversioned symbol. After the i2c patch the symbol dissapears, although the source still has EXPORT_SYMBOL(dmi_broken)! Help! :) RH kernel sources: linux-2.4.22-1.2163.nptl ATrpms kernel sources with i2c/lm_sensors 2.8.2: linux-2.4.22-1.2163.nptl_32.rhfc1.at # find linux-2.4.22-1.2163.nptl* -name dmi_scan.\* linux-2.4.22-1.2163.nptl/arch/i386/kernel/dmi_scan.c linux-2.4.22-1.2163.nptl/drivers/i2c/dmi_scan.c linux-2.4.22-1.2163.nptl/drivers/i2c/dmi_scan.h linux-2.4.22-1.2163.nptl/include/linux/modules/dmi_scan.stamp linux-2.4.22-1.2163.nptl/include/linux/modules/dmi_scan.ver linux-2.4.22-1.2163.nptl_32.rhfc1.at/arch/i386/kernel/dmi_scan.c linux-2.4.22-1.2163.nptl_32.rhfc1.at/drivers/i2c/dmi_scan.c linux-2.4.22-1.2163.nptl_32.rhfc1.at/include/linux/dmi_scan.h linux-2.4.22-1.2163.nptl_32.rhfc1.at/include/linux/modules/dmi_scan.stamp linux-2.4.22-1.2163.nptl_32.rhfc1.at/include/linux/modules/dmi_scan.ver # find linux-2.4.22-1.2163.nptl* -name dmi_scan.\* | xargs grep EXPORT linux-2.4.22-1.2163.nptl/arch/i386/kernel/dmi_scan.c:EXPORT_SYMBOL(dmi_broken); linux-2.4.22-1.2163.nptl/drivers/i2c/dmi_scan.c:EXPORT_SYMBOL_GPL(dmi_ident); linux-2.4.22-1.2163.nptl/drivers/i2c/dmi_scan.c:EXPORT_SYMBOL_GPL(dmi_scan_machine); linux-2.4.22-1.2163.nptl_32.rhfc1.at/arch/i386/kernel/dmi_scan.c:EXPORT_SYMBOL(dmi_broken); linux-2.4.22-1.2163.nptl_32.rhfc1.at/drivers/i2c/dmi_scan.c:EXPORT_SYMBOL(dmi_ident); linux-2.4.22-1.2163.nptl_32.rhfc1.at/drivers/i2c/dmi_scan.c:EXPORT_SYMBOL(dmi_scan_mach); # find linux-2.4.22-1.2163.nptl* -name dmi_scan.ver | xargs grep . linux-2.4.22-1.2163.nptl/include/linux/modules/dmi_scan.ver:#if defined(__module__smp) || defined(__module__up) || defined(__module__BOOT) linux-2.4.22-1.2163.nptl/include/linux/modules/dmi_scan.ver:#define __ver_dmi_broken _ver_str(565bcd17) linux-2.4.22-1.2163.nptl/include/linux/modules/dmi_scan.ver:#define dmi_broken _set_ver(dmi_broken) linux-2.4.22-1.2163.nptl/include/linux/modules/dmi_scan.ver:#endif linux-2.4.22-1.2163.nptl_32.rhfc1.at/include/linux/modules/dmi_scan.ver:#define __ver_dmi_ident _ver_str(b6e4b69b) linux-2.4.22-1.2163.nptl_32.rhfc1.at/include/linux/modules/dmi_scan.ver:#define dmi_ident _set_ver(dmi_ident) linux-2.4.22-1.2163.nptl_32.rhfc1.at/include/linux/modules/dmi_scan.ver:#define __ver_dmi_scan_mach _ver_str(0c5b4001) linux-2.4.22-1.2163.nptl_32.rhfc1.at/include/linux/modules/dmi_scan.ver:#define dmi_scan_mach _set_ver(dmi_scan_mach) It looks as if the EXPORT_SYMBOLs of drivers/i2c/dmi_scan.c override the ones from arch/i386/kernel/dmi_scan.c. Previously drivers/i2c/dmi_scan.c had only EXPORT_SYMBOL_GPL. -- Axel.Thimm at physik.fu-berlin.de -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 189 bytes Desc: not available Url : http://lists.lm-sensors.org/pipermail/lm-sensors/attachments/20040119/8a823782/attachment.bin
