kernel: Remove support for 5.6.x kernels

5.6.x was EOLed

Signed-off-by: Rolf Neugebauer <rn@rneugeba.io>

kernel/Makefile

@@ -248,19 +248,16 @@ endef
 # Debug targets only for latest stable and LTS stable
 #
 ifeq ($(ARCH),x86_64)
-$(eval $(call kernel,5.6.11,5.6.x,$(EXTRA),$(DEBUG)))
 $(eval $(call kernel,5.4.39,5.4.x,$(EXTRA),$(DEBUG)))
 $(eval $(call kernel,5.4.39,5.4.x,,-dbg))
 #$(eval $(call kernel,5.4.28,5.4.x,-rt,))
 $(eval $(call kernel,4.19.121,4.19.x,$(EXTRA),$(DEBUG)))
 
 else ifeq ($(ARCH),aarch64)
-$(eval $(call kernel,5.6.11,5.6.x,$(EXTRA),$(DEBUG)))
 $(eval $(call kernel,5.4.39,5.4.x,$(EXTRA),$(DEBUG)))
 #$(eval $(call kernel,5.4.28,5.4.x,-rt,))
 
 else ifeq ($(ARCH),s390x)
-$(eval $(call kernel,5.6.11,5.6.x,$(EXTRA),$(DEBUG)))
 $(eval $(call kernel,5.4.39,5.4.x,$(EXTRA),$(DEBUG)))
 endif
 

kernel/patches-5.6.x/0001-include-uapi-linux-swab-Fix-potentially-missing-__al.patch

@@ -1,55 +0,0 @@
-From 654a742e0c19c817e31443fc95f01aabaf2ee034 Mon Sep 17 00:00:00 2001
-From: Matt Redfearn <matt.redfearn@mips.com>
-Date: Wed, 3 Jan 2018 09:57:30 +0000
-Subject: [PATCH] include/uapi/linux/swab: Fix potentially missing
- __always_inline
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Commit bc27fb68aaad ("include/uapi/linux/byteorder, swab: force inlining
-of some byteswap operations") added __always_inline to swab functions
-and commit 283d75737837 ("uapi/linux/stddef.h: Provide __always_inline to
-userspace headers") added a definition of __always_inline for use in
-exported headers when the kernel's compiler.h is not available.
-
-However, since swab.h does not include stddef.h, if the header soup does
-not indirectly include it, the definition of __always_inline is missing,
-resulting in a compilation failure, which was observed compiling the
-perf tool using exported headers containing this commit:
-
-In file included from /usr/include/linux/byteorder/little_endian.h:12:0,
-                 from /usr/include/asm/byteorder.h:14,
-                 from tools/include/uapi/linux/perf_event.h:20,
-                 from perf.h:8,
-                 from builtin-bench.c:18:
-/usr/include/linux/swab.h:160:8: error: unknown type name ‘__always_inline’
- static __always_inline __u16 __swab16p(const __u16 *p)
-
-Fix this by replacing the inclusion of linux/compiler.h with
-linux/stddef.h to ensure that we pick up that definition if required,
-without relying on it's indirect inclusion. compiler.h is then included
-indirectly, via stddef.h.
-
-Fixes: 283d75737837 ("uapi/linux/stddef.h: Provide __always_inline to userspace headers")
-Signed-off-by: Matt Redfearn <matt.redfearn@mips.com>
----
- include/uapi/linux/swab.h | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/include/uapi/linux/swab.h b/include/uapi/linux/swab.h
-index 7272f85d6d6a..3736f2fe1541 100644
---- a/include/uapi/linux/swab.h
-+++ b/include/uapi/linux/swab.h
-@@ -3,7 +3,7 @@
- #define _UAPI_LINUX_SWAB_H
- 
- #include <linux/types.h>
--#include <linux/compiler.h>
-+#include <linux/stddef.h>
- #include <asm/bitsperlong.h>
- #include <asm/swab.h>
- 
--- 
-2.26.2
-