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generic: keep module aliases inside .modinfo

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It seems module aliases are actually essential info.  E.g. other modules
may call xt_request_find_match(NFPROTO_IPV{4,6}, "hashlimit", 1) and the
kernel will request user mode modprobe helper for ipt_hashlimit and
ip6t_hashlimit respectively which are aliases of xt_hashlimit.ko

Compile-tested for armvirt, there is nearly no size impact.

Before

    -rw-r--r-- 1 yousong yousong     304 Jan 10 17:37 config.seed
    -rw-r--r-- 1 yousong yousong    1634 Jan 11 11:07 lede-armvirt-default.manifest
    -rw-r--r-- 1 yousong yousong 1533647 Jan 11 11:07 lede-armvirt-default-rootfs.tar.gz
    -rw-r--r-- 1 yousong yousong 1802711 Jan 11 11:07 lede-armvirt-root.ext4.gz
    -rw-r--r-- 1 yousong yousong 1544597 Jan 11 11:07 lede-armvirt-rootfs.cpio.gz
    -rw-r--r-- 1 yousong yousong 1174984 Jan 11 11:07 lede-armvirt-root.squashfs.gz
    -rwxr-xr-x 1 yousong yousong 1654712 Jan 11 11:07 lede-armvirt-zImage
    -rwxr-xr-x 1 yousong yousong 2738296 Jan 11 11:07 lede-armvirt-zImage-initramfs
    drwxr-xr-x 2 yousong yousong    4096 Jan 10 17:35 packages
    -rw-r--r-- 1 yousong yousong     739 Jan 10 17:37 sha256sums

After

    -rw-r--r-- 1 yousong yousong     304 Jan 10 17:37 config.seed
    -rw-r--r-- 1 yousong yousong    1634 Jan 11 11:10 lede-armvirt-default.manifest
    -rw-r--r-- 1 yousong yousong 1533646 Jan 11 11:10 lede-armvirt-default-rootfs.tar.gz
    -rw-r--r-- 1 yousong yousong 1802711 Jan 11 11:10 lede-armvirt-root.ext4.gz
    -rw-r--r-- 1 yousong yousong 1544593 Jan 11 11:10 lede-armvirt-rootfs.cpio.gz
    -rw-r--r-- 1 yousong yousong 1174984 Jan 11 11:10 lede-armvirt-root.squashfs.gz
    -rwxr-xr-x 1 yousong yousong 1654736 Jan 11 11:10 lede-armvirt-zImage
    -rwxr-xr-x 1 yousong yousong 2738144 Jan 11 11:10 lede-armvirt-zImage-initramfs
    drwxr-xr-x 2 yousong yousong    4096 Jan 10 17:35 packages
    -rw-r--r-- 1 yousong yousong     739 Jan 10 17:37 sha256sums

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
This commit is contained in:
Yousong Zhou 2017-01-11 19:57:24 +08:00
parent 2bc8d5eaf1
commit 3bfe7ee632
2 changed files with 4 additions and 12 deletions
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8
target/linux/generic/patches-3.18/204-module_strip.patch
View File

@ -5,18 +5,14 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -84,9 +84,10 @@ void trim_init_extable(struct module *m)
@@ -84,6 +84,7 @@ void trim_init_extable(struct module *m)
/* Generic info of form tag = "info" */
#define MODULE_INFO(tag, info) __MODULE_INFO(tag, tag, info)
+#define MODULE_INFO_STRIP(tag, info) __MODULE_INFO_STRIP(tag, tag, info)
/* For userspace: you can also call me... */
-#define MODULE_ALIAS(_alias) MODULE_INFO(alias, _alias)
+#define MODULE_ALIAS(_alias) MODULE_INFO_STRIP(alias, _alias)
/* Soft module dependencies. See man modprobe.d for details.
* Example: MODULE_SOFTDEP("pre: module-foo module-bar post: module-baz")
#define MODULE_ALIAS(_alias) MODULE_INFO(alias, _alias)
@@ -127,12 +128,12 @@ void trim_init_extable(struct module *m)
* Author(s), use "Name <email>" or just "Name", for multiple
* authors use multiple MODULE_AUTHOR() statements/lines.

8
target/linux/generic/patches-4.4/204-module_strip.patch
View File

@ -5,18 +5,14 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -169,9 +169,10 @@ void trim_init_extable(struct module *m)
@@ -169,6 +169,7 @@ void trim_init_extable(struct module *m)
/* Generic info of form tag = "info" */
#define MODULE_INFO(tag, info) __MODULE_INFO(tag, tag, info)
+#define MODULE_INFO_STRIP(tag, info) __MODULE_INFO_STRIP(tag, tag, info)
/* For userspace: you can also call me... */
-#define MODULE_ALIAS(_alias) MODULE_INFO(alias, _alias)
+#define MODULE_ALIAS(_alias) MODULE_INFO_STRIP(alias, _alias)
/* Soft module dependencies. See man modprobe.d for details.
* Example: MODULE_SOFTDEP("pre: module-foo module-bar post: module-baz")
#define MODULE_ALIAS(_alias) MODULE_INFO(alias, _alias)
@@ -212,12 +213,12 @@ void trim_init_extable(struct module *m)
* Author(s), use "Name <email>" or just "Name", for multiple
* authors use multiple MODULE_AUTHOR() statements/lines.