diff options
Diffstat (limited to 'target/linux/generic/backport-5.4/031-modpost-refactor-namespace_from_kstrtabns-to-not-har.patch')
| -rw-r--r-- | target/linux/generic/backport-5.4/031-modpost-refactor-namespace_from_kstrtabns-to-not-har.patch | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.4/031-modpost-refactor-namespace_from_kstrtabns-to-not-har.patch b/target/linux/generic/backport-5.4/031-modpost-refactor-namespace_from_kstrtabns-to-not-har.patch new file mode 100644 index 0000000000..230dc6b89a --- /dev/null +++ b/target/linux/generic/backport-5.4/031-modpost-refactor-namespace_from_kstrtabns-to-not-har.patch @@ -0,0 +1,62 @@ +From e84f9fbbece1585f45a03ccc11eeabe121cadc1b Mon Sep 17 00:00:00 2001 +From: Masahiro Yamada <yamada.masahiro@socionext.com> +Date: Fri, 15 Nov 2019 02:42:22 +0900 +Subject: [PATCH] modpost: refactor namespace_from_kstrtabns() to not hard-code + section name + +Currently, namespace_from_kstrtabns() relies on the fact that +namespace strings are recorded in the __ksymtab_strings section. +Actually, it is coded in include/linux/export.h, but modpost does +not need to hard-code the section name. + +Elf_Sym::st_shndx holds the index of the relevant section. Using it is +a more portable way to get the namespace string. + +Make namespace_from_kstrtabns() simply call sym_get_data(), and delete +the info->ksymtab_strings . + +While I was here, I added more 'const' qualifiers to pointers. + +Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> +--- + scripts/mod/modpost.c | 10 +++------- + scripts/mod/modpost.h | 1 - + 2 files changed, 3 insertions(+), 8 deletions(-) + +--- a/scripts/mod/modpost.c ++++ b/scripts/mod/modpost.c +@@ -360,10 +360,10 @@ static enum export export_from_sec(struc + return export_unknown; + } + +-static const char *namespace_from_kstrtabns(struct elf_info *info, +- Elf_Sym *kstrtabns) ++static const char *namespace_from_kstrtabns(const struct elf_info *info, ++ const Elf_Sym *sym) + { +- char *value = info->ksymtab_strings + kstrtabns->st_value; ++ const char *value = sym_get_data(info, sym); + return value[0] ? value : NULL; + } + +@@ -605,10 +605,6 @@ static int parse_elf(struct elf_info *in + info->export_unused_gpl_sec = i; + else if (strcmp(secname, "__ksymtab_gpl_future") == 0) + info->export_gpl_future_sec = i; +- else if (strcmp(secname, "__ksymtab_strings") == 0) +- info->ksymtab_strings = (void *)hdr + +- sechdrs[i].sh_offset - +- sechdrs[i].sh_addr; + + if (sechdrs[i].sh_type == SHT_SYMTAB) { + unsigned int sh_link_idx; +--- a/scripts/mod/modpost.h ++++ b/scripts/mod/modpost.h +@@ -143,7 +143,6 @@ struct elf_info { + Elf_Section export_gpl_sec; + Elf_Section export_unused_gpl_sec; + Elf_Section export_gpl_future_sec; +- char *ksymtab_strings; + char *strtab; + char *modinfo; + unsigned int modinfo_len; |