sys-apps/busybox: fix building with kernel headers 6.8

Apply a patch from the mailing list.

Closes: https://bugs.gentoo.org/926872
Signed-off-by: Viorel Munteanu <ceamac@gentoo.org>

1 files changed, 53 insertions, 0 deletions

diff --git a/sys-apps/busybox/files/busybox-1.36.1-kernel-6.8.patch b/sys-apps/busybox/files/busybox-1.36.1-kernel-6.8.patch
new file mode 100644
index 000000000000..4f74d51bdcaf
--- /dev/null
+++ b/sys-apps/busybox/files/busybox-1.36.1-kernel-6.8.patch
@@ -0,0 +1,53 @@
+http://lists.busybox.net/pipermail/busybox/2024-March/090678.html
+https://bugs.gentoo.org/926872
+
+Linux v6.8-rc1 removed the definitions related to CBQ making tc fail to
+build. Add some #ifdefs to handle this missing support.
+--- a/networking/tc.c
++++ b/networking/tc.c
+@@ -231,6 +231,13 @@ static int cbq_parse_opt(int argc, char **argv, struct nlmsghdr *n)
+ 	return 0;
+ }
+ #endif
++
++#ifndef TCA_CBQ_MAX
++/*
++ * Linux v6.8-rc1~131^2~60^2^2 removed the uapi definitions for CBQ.
++ * See <A HREF="https://git.kernel.org/linus/33241dca48626">https://git.kernel.org/linus/33241dca48626</A>
++ */
++#else
+ static int cbq_print_opt(struct rtattr *opt)
+ {
+ 	struct rtattr *tb[TCA_CBQ_MAX+1];
+@@ -322,6 +329,7 @@ static int cbq_print_opt(struct rtattr *opt)
+  done:
+ 	return 0;
+ }
++#endif
+ 
+ static FAST_FUNC int print_qdisc(
+ 		const struct sockaddr_nl *who UNUSED_PARAM,
+@@ -372,8 +380,10 @@ static FAST_FUNC int print_qdisc(
+ 		int qqq = index_in_strings(_q_, name);
+ 		if (qqq == 0) { /* pfifo_fast aka prio */
+ 			prio_print_opt(tb[TCA_OPTIONS]);
++#ifdef TCA_CBQ_MAX
+ 		} else if (qqq == 1) { /* class based queuing */
+ 			cbq_print_opt(tb[TCA_OPTIONS]);
++#endif
+ 		} else {
+ 			/* don't know how to print options for this qdisc */
+ 			printf(&quot;(options for %s)&quot;, name);
+@@ -442,9 +452,11 @@ static FAST_FUNC int print_class(
+ 		int qqq = index_in_strings(_q_, name);
+ 		if (qqq == 0) { /* pfifo_fast aka prio */
+ 			/* nothing. */ /*prio_print_opt(tb[TCA_OPTIONS]);*/
++#ifdef TCA_CBQ_MAX
+ 		} else if (qqq == 1) { /* class based queuing */
+ 			/* cbq_print_copt() is identical to cbq_print_opt(). */
+ 			cbq_print_opt(tb[TCA_OPTIONS]);
++#endif
+ 		} else {
+ 			/* don't know how to print options for this class */
+ 			printf(&quot;(options for %s)&quot;, name);
+