diff options
Diffstat (limited to 'scripts/mod')
| -rw-r--r-- | scripts/mod/modpost.c | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index 1ce655dde99e..33122ca04e7c 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -14,6 +14,7 @@ #define _GNU_SOURCE #include <stdio.h> #include <ctype.h> +#include <string.h> #include "modpost.h" #include "../../include/generated/autoconf.h" #include "../../include/linux/license.h" @@ -789,6 +790,7 @@ static const char *section_white_list[] = { ".comment*", ".debug*", + ".GCC-command-line", /* mn10300 */ ".mdebug*", /* alpha, score, mips etc. */ ".pdr", /* alpha, score, mips etc. */ ".stab*", @@ -1033,6 +1035,13 @@ static const struct sectioncheck *section_mismatch( * fromsec = .data* * atsym =__param* * + * Pattern 1a: + * module_param_call() ops can refer to __init set function if permissions=0 + * The pattern is identified by: + * tosec = .init.text + * fromsec = .data* + * atsym = __param_ops_* + * * Pattern 2: * Many drivers utilise a *driver container with references to * add, remove, probe functions etc. @@ -1067,6 +1076,12 @@ static int secref_whitelist(const struct sectioncheck *mismatch, (strncmp(fromsym, "__param", strlen("__param")) == 0)) return 0; + /* Check for pattern 1a */ + if (strcmp(tosec, ".init.text") == 0 && + match(fromsec, data_sections) && + (strncmp(fromsym, "__param_ops_", strlen("__param_ops_")) == 0)) + return 0; + /* Check for pattern 2 */ if (match(tosec, init_exit_sections) && match(fromsec, data_sections) && @@ -1193,6 +1208,9 @@ static Elf_Sym *find_elf_symbol2(struct elf_info *elf, Elf_Addr addr, * .cpuinit.data => __cpudata * .memexitconst => __memconst * etc. + * + * The memory of returned value has been allocated on a heap. The user of this + * method should free it after usage. */ static char *sec2annotation(const char *s) { @@ -1215,9 +1233,9 @@ static char *sec2annotation(const char *s) strcat(p, "data "); else strcat(p, " "); - return r; /* we leak her but we do not care */ + return r; } else { - return ""; + return strdup(""); } } @@ -1352,7 +1370,7 @@ static void report_sec_mismatch(const char *modname, "%s%s so it may be used outside an exit section.\n", from, prl_from, fromsym, from_p, to, prl_to, tosym, to_p, - sec2annotation(tosec), tosym, to_p); + prl_to, tosym, to_p); free(prl_from); free(prl_to); break; |