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88731c8f36
linux/arch/s390
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Vasily Gorbik 88731c8f36 s390/boot: fix zstd build for -march=z900 
zstd decompression uses __builtin_clz() which fails back to __clzdi2()
when the kernel is built for older hardware like z900. This leads to
build failures like the following:
s390x-11.1.0-ld: /devel/src/kernel/arch/s390/boot/compressed/../../../../lib/zstd/bitstream.h:148: undefined reference to `__clzdi2'

Fix that by optionally including lib/clz_ctz.c into the decompressor.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: 7b034d9c1b ("s390/boot: add zstd support")
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Link: https://lore.kernel.org/r/patch-1.thread-f0f589.git-f0f58936888f.your-ad-here.call-01627564869-ext-2765@work.hours
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2021-07-30 17:08:22 +02:00
..
appldata s390/appldata: use struct_size() helper 2020-06-29 16:32:34 +02:00
boot s390/boot: fix zstd build for -march=z900 2021-07-30 17:08:22 +02:00
configs s390: update defconfigs 2021-07-20 17:59:40 +02:00
crypto s390/archrandom: add parameter check for s390_arch_random_generate 2021-04-21 12:32:12 +02:00
hypfs s390/hypfs: use register pair instead of register asm 2021-06-28 11:18:28 +02:00
include s390/ftrace: fix ftrace_update_ftrace_func implementation 2021-07-15 12:54:58 +02:00
kernel s390/vdso: add .got.plt in vdso linker script 2021-07-30 17:08:21 +02:00
kvm s390 updates for the 5.14 merge window 2021-07-04 12:17:38 -07:00
lib s390/lib: use call_on_stack() macro 2021-07-08 22:12:18 +02:00
mm s390/mm: use call_on_stack() macro 2021-07-08 22:12:18 +02:00
net s390/bpf: Perform r1 range checking before accessing jit->seen_reg[r1] 2021-07-15 19:47:25 +02:00
pci s390/pci: add zpci_set_irq()/zpci_clear_irq() 2021-06-28 11:18:28 +02:00
purgatory s390: disable SSP when needed 2021-06-07 17:07:00 +02:00
tools KVM: s390: gen_facilities: allow facilities 165, 193, 194 and 196 2021-06-23 09:35:03 +02:00
Kbuild s390/numa: move code to arch/s390/kernel 2020-08-11 18:16:55 +02:00
Kconfig s390/vdso: add minimal compat vdso 2021-07-08 15:37:28 +02:00
Kconfig.debug s390/cio: add CRW inject functionality 2021-03-22 11:36:04 +01:00
Makefile Kbuild updates for v5.14 2021-07-10 11:01:38 -07:00