From 970b96f070b3f9ccd9c1850db44116a2b02da424 Mon Sep 17 00:00:00 2001 From: Michal Marek Date: Thu, 27 Feb 2014 23:31:33 +0100 Subject: [PATCH 06/10] testsuite: Do not provide finit_module(2) on older kernels If the test's uname -r is less that 3.8, return -ENOSYS from finit_module(), so that the fallback is tested. Patch-mainline: v17 Git-commit: 063086e038657de64f9980bc51954b0817fa8e6c --- testsuite/init_module.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/testsuite/init_module.c b/testsuite/init_module.c index 42177e7..269a471 100644 --- a/testsuite/init_module.c +++ b/testsuite/init_module.c @@ -37,6 +37,7 @@ #include #include #include +#include #include /* kmod_elf_get_section() is not exported, we need the private header */ @@ -280,6 +281,25 @@ long init_module(void *mem, unsigned long len, const char *args) return err; } +static int check_kernel_version(int major, int minor) +{ + struct utsname u; + const char *p; + int maj = 0, min = 0; + + if (uname(&u) < 0) + return false; + for (p = u.release; *p >= '0' && *p <= '9'; p++) + maj = maj * 10 + *p - '0'; + if (*p == '.') + for (p++; *p >= '0' && *p <= '9'; p++) + min = min * 10 + *p - '0'; + if (maj > major || (maj == major && min >= minor)) + return true; + return false; +} + + TS_EXPORT int finit_module(const int fd, const char *args, const int flags); int finit_module(const int fd, const char *args, const int flags) @@ -289,6 +309,10 @@ int finit_module(const int fd, const char *args, const int flags) unsigned long len; struct stat st; + if (!check_kernel_version(3, 8)) { + errno = ENOSYS; + return -1; + } if (fstat(fd, &st) < 0) return -1; -- 1.8.4.5