btrfsprogs/btrfs-progs-kerncompat-add-local-definition-for-alig.patch
Dominique Leuenberger 75beb34820 Accepting request 947370 from filesystems
- add python-rpm-macros (bsc#1194748) 

- spec: also provide btrfs-progs as it's common package name in other distros
- spec: clean up conditionals for < 12 versions
- spec: let SLE12 build again (conditional dependency of libreiserfscore)
- Removed patches: sles11-defaults.h (no SLE11 compatibility anymore)
- Added patches: btrfs-progs-kerncompat-add-local-definition-for-alig.patch
  (fix build on SLE12/SLE15)

OBS-URL: https://build.opensuse.org/request/show/947370
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/btrfsprogs?expand=0&rev=126
2022-01-21 00:25:06 +00:00

47 lines
1.6 KiB
Diff

From b0cfe12c4d4b8b4ef335cdf4ddefcbdcd1b70d58 Mon Sep 17 00:00:00 2001
From: David Sterba <dsterba@suse.com>
Date: Thu, 13 Jan 2022 14:47:08 +0100
Subject: [PATCH] btrfs-progs: kerncompat: add local definition for alignment
macros
There's still problem left with compilation on musl and kernel < 5.11,
because __ALIGN_KERNEL is not defined anymore:
../bin/ld: kernel-shared/volumes.o: in function `create_chunk':
volumes.c:(.text+0x17f8): undefined reference to `__ALIGN_KERNEL'
Due to the entangled includes and unconditional definition of
__ALIGN_KERNEL, we can't use #ifdef in kerncompat.h to define it
eventually (as kerncompat.h is the first include). Instead add local
definitions of the macros and rename them to avoid name clashes.
Pull-request: #433
Signed-off-by: David Sterba <dsterba@suse.com>
---
kerncompat.h | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/kerncompat.h b/kerncompat.h
index 6ca1526e2014..f0a6e196e3b9 100644
--- a/kerncompat.h
+++ b/kerncompat.h
@@ -359,7 +359,14 @@ do { \
/* Alignment check */
#define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0)
-#define ALIGN(x, a) __ALIGN_KERNEL((x), (a))
+
+/*
+ * Alignment, copied and renamed from /usr/include/linux/const.h to work around
+ * issues caused by moving the definition in 5.12
+ */
+#define __ALIGN_KERNEL__(x, a) __ALIGN_KERNEL_MASK__(x, (typeof(x))(a) - 1)
+#define __ALIGN_KERNEL_MASK__(x, mask) (((x) + (mask)) & ~(mask))
+#define ALIGN(x, a) __ALIGN_KERNEL__((x), (a))
static inline int is_power_of_2(unsigned long n)
{
--
2.33.0