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This patch changes libkmod so it honors the 'LINUX_MODULE_DIRECTORY'
environment variable, rather than looking for modules exclusively in
/lib/modules.
Patch by Shea Levy and Eelco Dolstra, from Nixpkgs; adjusted to
use 'LINUX_MODULE_DIRECTORY' rather than 'MODULE_DIR' as the variable
name.
--- kmod-7/libkmod/libkmod.c 2012-03-15 08:19:16.750010226 -0400
+++ kmod-7/libkmod/libkmod.c 2012-04-04 15:21:29.532074313 -0400
@@ -200,7 +200,7 @@
static char *get_kernel_release(const char *dirname)
{
struct utsname u;
- char *p;
+ char *p, *dirname_prefix;
if (dirname != NULL)
return path_make_absolute_cwd(dirname);
@@ -208,7 +208,10 @@
if (uname(&u) < 0)
return NULL;
- if (asprintf(&p, "%s/%s", dirname_default_prefix, u.release) < 0)
+ if ((dirname_prefix = getenv("LINUX_MODULE_DIRECTORY")) == NULL)
+ dirname_prefix = dirname_default_prefix;
+
+ if (asprintf(&p, "%s/%s", dirname_prefix, u.release) < 0)
return NULL;
return p;
--- kmod-17/tools/static-nodes.c 2013-12-17 22:05:42.159047316 +0100
+++ kmod-17/tools/static-nodes.c 2014-04-17 13:51:17.945974320 +0200
@@ -159,6 +159,7 @@
FILE *in = NULL, *out = NULL;
const struct static_nodes_format *format = &static_nodes_format_human;
int r, ret = EXIT_SUCCESS;
+ char *dirname_prefix;
for (;;) {
int c, idx = 0, valid;
@@ -211,16 +212,19 @@
goto finish;
}
- snprintf(modules, sizeof(modules), "/lib/modules/%s/modules.devname", kernel.release);
+ if ((dirname_prefix = getenv("LINUX_MODULE_DIRECTORY")) == NULL)
+ dirname_prefix = "/lib/modules";
+
+ snprintf(modules, sizeof(modules), "%s/%s/modules.devname", dirname_prefix, kernel.release);
in = fopen(modules, "re");
if (in == NULL) {
if (errno == ENOENT) {
- fprintf(stderr, "Warning: /lib/modules/%s/modules.devname not found - ignoring\n",
- kernel.release);
+ fprintf(stderr, "Warning: %s/%s/modules.devname not found - ignoring\n",
+ dirname_prefix, kernel.release);
ret = EXIT_SUCCESS;
} else {
- fprintf(stderr, "Error: could not open /lib/modules/%s/modules.devname - %m\n",
- kernel.release);
+ fprintf(stderr, "Error: could not open %s/%s/modules.devname - %m\n",
+ dirname_prefix, kernel.release);
ret = EXIT_FAILURE;
}
goto finish;
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