From 16f035d9e264d95d61d5f4056bb00d8169a7a3d1 Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Fri, 7 Jan 2022 01:13:02 +0100 Subject: [PATCH] sections: Fix __is_kernel() to include init ranges With CONFIG_KALLSYMS_ALL=y, the function is_ksym_addr() is used to determine if a symbol is from inside the kernel range. For that the given symbol address is checked if it's inside the _stext to _end range. Although this is correct, some architectures (e.g. parisc) may have the init area before the _stext address and as such the check in is_ksym_addr() fails. By extending the range check to include the init section, __is_kernel() will now detect symbols in this range as well. This fixes an issue on parisc where addresses of kernel functions in init sections aren't resolved to their symbol names. Signed-off-by: Helge Deller --- include/asm-generic/sections.h | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h index 1dfadb2..00566b1 100644 --- a/include/asm-generic/sections.h +++ b/include/asm-generic/sections.h @@ -193,12 +193,16 @@ static inline bool __is_kernel_text(unsigned long addr) * @addr: address to check * * Returns: true if the address is located in the kernel range, false otherwise. - * Note: an internal helper, only check the range of _stext to _end. + * Note: an internal helper, check the range of _stext to _end, + * and range from __init_begin to __init_end, which can be outside + * of the _stext to _end range. */ static inline bool __is_kernel(unsigned long addr) { - return addr >= (unsigned long)_stext && - addr < (unsigned long)_end; + return ((addr >= (unsigned long)_stext && + addr < (unsigned long)_end) || + (addr >= (unsigned long)__init_begin && + addr < (unsigned long)__init_end)); } #endif /* _ASM_GENERIC_SECTIONS_H_ */ -- 2.7.4