From 97ac4d37aae084a050be512f6d8f4489054668ad Mon Sep 17 00:00:00 2001
From: Dave Reisner <dreisner@archlinux.org>
Date: Sun, 26 Jun 2016 09:26:03 -0400
Subject: Handle softdeps in modules

modinfo outputs softdeps which we can add if they exist (failing
quietly on not-found). this obviates the need for some of our own
module quirks.

The output of modinfo can take many forms, as it's nearly freeform text
in the  .modinfo section of the kernel module. The basic form is:

  softdep:        pre: foo

But it might also be:

  softdep:        pre: foo bar post: baz

Or:

  softdep:        pre: foo
  softdep:        post: bar

So just parse the entire line, discarding anything that ends with a ':'.
---
 functions | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/functions b/functions
index 362d07b..0d998a3 100644
--- a/functions
+++ b/functions
@@ -348,7 +348,7 @@ add_module() {
     # discovered and added.
     #   $1: module name
 
-    local module= path= deps= field= value= firmware=()
+    local module= path= softdeps= deps= field= value= firmware=()
     local ign_errors=0
 
     [[ $KERNELVERSION == none ]] && return 0
@@ -375,6 +375,13 @@ add_module() {
             firmware)
                 firmware+=("$value")
                 ;;
+            softdep)
+                read -ra softdeps <<<"$value"
+                for module in "${softdeps[@]}"; do
+                    [[ $module == *: ]] && continue
+                    add_module "$module?"
+                done
+                ;;
         esac
     done < <(modinfo -b "$_optmoduleroot" -k "$KERNELVERSION" -0 "$module" 2>/dev/null)
 
@@ -403,9 +410,8 @@ add_module() {
         ocfs2)
             add_module "configfs?"
             ;;
-        btrfs|libcrc32c)
-            add_module "crc32c_intel?"
-            add_module "crc32c?"
+        btrfs)
+            add_module "libcrc32c?"
             ;;
     esac
 }
@@ -780,7 +786,7 @@ install_modules() {
     depmod -b "$BUILDROOT" "$KERNELVERSION"
 
     # remove all non-binary module.* files (except devname for on-demand module loading)
-    rm "$moduledest"/modules.!(*.bin|devname)
+    rm "$moduledest"/modules.!(*.bin|devname|softdep)
 }
 
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-- 
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