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'struct kobj_type' is not modified. It is only used in kobject_init() which takes a 'const struct kobj_type *ktype' parameter. Constifying this structure moves some data to a read-only section, so increase over all security. On a x86_64, compiled with ppc64 defconfig: Before: ====== text data bss dec hex filename 3775 256 8 4039 fc7 arch/powerpc/platforms/powernv/opal-dump.o 2679 260 8 2947 b83 arch/powerpc/platforms/powernv/opal-elog.o After: ====== text data bss dec hex filename 3823 208 8 4039 fc7 arch/powerpc/platforms/powernv/opal-dump.o 2727 212 8 2947 b83 arch/powerpc/platforms/powernv/opal-elog.o Signed-off-by: Huang Xiaojia <huangxiaojia2@huawei.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20240826150957.3500237-2-huangxiaojia2@huawei.com |
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| boot | ||
| configs | ||
| crypto | ||
| include | ||
| kernel | ||
| kexec | ||
| kvm | ||
| lib | ||
| math-emu | ||
| mm | ||
| net | ||
| perf | ||
| platforms | ||
| purgatory | ||
| sysdev | ||
| tools | ||
| xmon | ||
| Kbuild | ||
| Kconfig | ||
| Kconfig.debug | ||
| Makefile | ||
| Makefile.postlink | ||