# git gc # git rev-parse -q --verify 01fa88c6d412d0d8fb9ca29bc5e224433428c5a4^{commit} # git fetch -q -n -f git://gitlab.ozlabs.ibm.com/mirror/chleroy-linux.git includes # git rev-parse -q --verify 01fa88c6d412d0d8fb9ca29bc5e224433428c5a4^{commit} 01fa88c6d412d0d8fb9ca29bc5e224433428c5a4 # git checkout -q -f -B kisskb 01fa88c6d412d0d8fb9ca29bc5e224433428c5a4 # git clean -qxdf # < git log -1 # commit 01fa88c6d412d0d8fb9ca29bc5e224433428c5a4 # Author: Christophe Leroy # Date: Sun Jan 23 16:50:07 2022 +0100 # # powerpc: Select ARCH_WANTS_MODULES_DATA_IN_VMALLOC on book3s/32 and 8xx # # book3s/32 and 8xx have a separate area for allocating modules, # defined by MODULES_VADDR / MODULES_END. # # On book3s/32, it is not possible to protect against execution # on a page basis. A full 256M segment is either Exec or NoExec. # The module area is in an Exec segment while vmalloc area is # in a NoExec segment. # # In order to protect module data against execution, select # ARCH_WANTS_MODULES_DATA_IN_VMALLOC. # # For the 8xx (and possibly other 32 bits platform in the future), # there is no such constraint on Exec/NoExec protection, however # there is a critical distance between kernel functions and callers # that needs to remain below 32Mbytes in order to avoid costly # trampolines. By allocating data outside of module area, we # increase the chance for module text to remain within acceptable # distance from kernel core text. # # So select ARCH_WANTS_MODULES_DATA_IN_VMALLOC for 8xx as well. # # Signed-off-by: Christophe Leroy # Cc: Michael Ellerman # Cc: Benjamin Herrenschmidt # Cc: Paul Mackerras # < /opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-gcc --version # < /opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-ld --version # < git log --format=%s --max-count=1 01fa88c6d412d0d8fb9ca29bc5e224433428c5a4 # < make -s -j 32 ARCH=mips O=/kisskb/build/chleroy_mips-defconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux- defconfig # < make -s -j 32 ARCH=mips O=/kisskb/build/chleroy_mips-defconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux- help # make -s -j 32 ARCH=mips O=/kisskb/build/chleroy_mips-defconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux- olddefconfig # make -s -j 32 ARCH=mips O=/kisskb/build/chleroy_mips-defconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux- /kisskb/src/arch/mips/boot/dts/img/boston.dts:128.19-178.5: Warning (pci_device_reg): /pci@14000000/pci2_root@0,0,0: PCI unit address format error, expected "0,0" In file included from /kisskb/src/kernel/module/kallsyms.c:12:0: /kisskb/src/kernel/module/internal.h:144:13: warning: 'mod_tree_insert' defined but not used [-Wunused-function] static void mod_tree_insert(struct module *mod) { } ^ /kisskb/src/kernel/module/internal.h:145:13: warning: 'mod_tree_remove_init' defined but not used [-Wunused-function] static void mod_tree_remove_init(struct module *mod) { } ^ /kisskb/src/kernel/module/internal.h:146:13: warning: 'mod_tree_remove' defined but not used [-Wunused-function] static void mod_tree_remove(struct module *mod) { } ^ /kisskb/src/kernel/module/internal.h:179:13: warning: 'module_enable_nx' defined but not used [-Wunused-function] static void module_enable_nx(const struct module *mod) { } ^ /kisskb/src/kernel/module/internal.h:180:13: warning: 'module_enable_ro' defined but not used [-Wunused-function] static void module_enable_ro(const struct module *mod, bool after_init) {} ^ /kisskb/src/kernel/module/internal.h:181:12: warning: 'module_enforce_rwx_sections' defined but not used [-Wunused-function] static int module_enforce_rwx_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs, ^ In file included from /kisskb/src/kernel/module/procfs.c:13:0: /kisskb/src/kernel/module/internal.h:144:13: warning: 'mod_tree_insert' defined but not used [-Wunused-function] static void mod_tree_insert(struct module *mod) { } ^ /kisskb/src/kernel/module/internal.h:145:13: warning: 'mod_tree_remove_init' defined but not used [-Wunused-function] static void mod_tree_remove_init(struct module *mod) { } ^ /kisskb/src/kernel/module/internal.h:146:13: warning: 'mod_tree_remove' defined but not used [-Wunused-function] static void mod_tree_remove(struct module *mod) { } ^ /kisskb/src/kernel/module/internal.h:179:13: warning: 'module_enable_nx' defined but not used [-Wunused-function] static void module_enable_nx(const struct module *mod) { } ^ /kisskb/src/kernel/module/internal.h:180:13: warning: 'module_enable_ro' defined but not used [-Wunused-function] static void module_enable_ro(const struct module *mod, bool after_init) {} ^ /kisskb/src/kernel/module/internal.h:181:12: warning: 'module_enforce_rwx_sections' defined but not used [-Wunused-function] static int module_enforce_rwx_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs, ^ Completed OK # rm -rf /kisskb/build/chleroy_mips-defconfig_mipsel # Build took: 0:04:19.586783