* [PATCH] modprobe: ignore builtin module on recursive removing
@ 2019-10-31 18:12 Yauheni Kaliuta
2019-11-07 7:36 ` Lucas De Marchi
0 siblings, 1 reply; 2+ messages in thread
From: Yauheni Kaliuta @ 2019-10-31 18:12 UTC (permalink / raw)
To: Lucas De Marchi; +Cc: linux-modules
If there are built-in dependencies and any of them is built-in in
the kernel, modprobe -r fails with
modprobe: FATAL: Module module_name is builtin.
It makes sense to ignore such dependencies for the case when
removing is called for non-top level module.
Example: cifs module, it declares bunch of softdeps and the first
one fails on some kernel configs:
modprobe: FATAL: Module gcm is builtin.
Signed-off-by: Yauheni Kaliuta <yauheni.kaliuta@redhat.com>
---
tools/modprobe.c | 18 ++++++++++++------
1 file changed, 12 insertions(+), 6 deletions(-)
diff --git a/tools/modprobe.c b/tools/modprobe.c
index a9e2331567af..44cd15c2bf57 100644
--- a/tools/modprobe.c
+++ b/tools/modprobe.c
@@ -353,7 +353,8 @@ static int rmmod_do_remove_module(struct kmod_module *mod)
return err;
}
-static int rmmod_do_module(struct kmod_module *mod, bool do_dependencies);
+static int rmmod_do_module(struct kmod_module *mod, bool do_dependencies,
+ bool ignore_builtin);
static int rmmod_do_deps_list(struct kmod_list *list, bool stop_on_errors)
{
@@ -361,7 +362,7 @@ static int rmmod_do_deps_list(struct kmod_list *list, bool stop_on_errors)
kmod_list_foreach_reverse(l, list) {
struct kmod_module *m = kmod_module_get_module(l);
- int r = rmmod_do_module(m, false);
+ int r = rmmod_do_module(m, false, true);
kmod_module_unref(m);
if (r < 0 && stop_on_errors)
@@ -371,7 +372,8 @@ static int rmmod_do_deps_list(struct kmod_list *list, bool stop_on_errors)
return 0;
}
-static int rmmod_do_module(struct kmod_module *mod, bool do_dependencies)
+static int rmmod_do_module(struct kmod_module *mod, bool do_dependencies,
+ bool ignore_builtin)
{
const char *modname = kmod_module_get_name(mod);
struct kmod_list *pre = NULL, *post = NULL;
@@ -401,8 +403,12 @@ static int rmmod_do_module(struct kmod_module *mod, bool do_dependencies)
}
goto error;
} else if (state == KMOD_MODULE_BUILTIN) {
- LOG("Module %s is builtin.\n", modname);
- err = -ENOENT;
+ if (ignore_builtin) {
+ err = 0;
+ } else {
+ LOG("Module %s is builtin.\n", modname);
+ err = -ENOENT;
+ }
goto error;
}
}
@@ -462,7 +468,7 @@ static int rmmod(struct kmod_ctx *ctx, const char *alias)
kmod_list_foreach(l, list) {
struct kmod_module *mod = kmod_module_get_module(l);
- err = rmmod_do_module(mod, true);
+ err = rmmod_do_module(mod, true, false);
kmod_module_unref(mod);
if (err < 0)
break;
--
2.23.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] modprobe: ignore builtin module on recursive removing
2019-10-31 18:12 [PATCH] modprobe: ignore builtin module on recursive removing Yauheni Kaliuta
@ 2019-11-07 7:36 ` Lucas De Marchi
0 siblings, 0 replies; 2+ messages in thread
From: Lucas De Marchi @ 2019-11-07 7:36 UTC (permalink / raw)
To: Yauheni Kaliuta; +Cc: linux-modules
On Thu, Oct 31, 2019 at 08:12:53PM +0200, Yauheni Kaliuta wrote:
>If there are built-in dependencies and any of them is built-in in
>the kernel, modprobe -r fails with
>
>modprobe: FATAL: Module module_name is builtin.
>
>It makes sense to ignore such dependencies for the case when
>removing is called for non-top level module.
>
>Example: cifs module, it declares bunch of softdeps and the first
>one fails on some kernel configs:
>
>modprobe: FATAL: Module gcm is builtin.
>
>Signed-off-by: Yauheni Kaliuta <yauheni.kaliuta@redhat.com>
makes sense.
thanks, applied.
Lucas De Marchi
>---
> tools/modprobe.c | 18 ++++++++++++------
> 1 file changed, 12 insertions(+), 6 deletions(-)
>
>diff --git a/tools/modprobe.c b/tools/modprobe.c
>index a9e2331567af..44cd15c2bf57 100644
>--- a/tools/modprobe.c
>+++ b/tools/modprobe.c
>@@ -353,7 +353,8 @@ static int rmmod_do_remove_module(struct kmod_module *mod)
> return err;
> }
>
>-static int rmmod_do_module(struct kmod_module *mod, bool do_dependencies);
>+static int rmmod_do_module(struct kmod_module *mod, bool do_dependencies,
>+ bool ignore_builtin);
>
> static int rmmod_do_deps_list(struct kmod_list *list, bool stop_on_errors)
> {
>@@ -361,7 +362,7 @@ static int rmmod_do_deps_list(struct kmod_list *list, bool stop_on_errors)
>
> kmod_list_foreach_reverse(l, list) {
> struct kmod_module *m = kmod_module_get_module(l);
>- int r = rmmod_do_module(m, false);
>+ int r = rmmod_do_module(m, false, true);
> kmod_module_unref(m);
>
> if (r < 0 && stop_on_errors)
>@@ -371,7 +372,8 @@ static int rmmod_do_deps_list(struct kmod_list *list, bool stop_on_errors)
> return 0;
> }
>
>-static int rmmod_do_module(struct kmod_module *mod, bool do_dependencies)
>+static int rmmod_do_module(struct kmod_module *mod, bool do_dependencies,
>+ bool ignore_builtin)
> {
> const char *modname = kmod_module_get_name(mod);
> struct kmod_list *pre = NULL, *post = NULL;
>@@ -401,8 +403,12 @@ static int rmmod_do_module(struct kmod_module *mod, bool do_dependencies)
> }
> goto error;
> } else if (state == KMOD_MODULE_BUILTIN) {
>- LOG("Module %s is builtin.\n", modname);
>- err = -ENOENT;
>+ if (ignore_builtin) {
>+ err = 0;
>+ } else {
>+ LOG("Module %s is builtin.\n", modname);
>+ err = -ENOENT;
>+ }
> goto error;
> }
> }
>@@ -462,7 +468,7 @@ static int rmmod(struct kmod_ctx *ctx, const char *alias)
>
> kmod_list_foreach(l, list) {
> struct kmod_module *mod = kmod_module_get_module(l);
>- err = rmmod_do_module(mod, true);
>+ err = rmmod_do_module(mod, true, false);
> kmod_module_unref(mod);
> if (err < 0)
> break;
>--
>2.23.0
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2019-11-07 7:36 ` Lucas De Marchi
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