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Fix Clang 15 compilation errors

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- Clang 15 doesn't support `-fno-ipa-sra` anymore. Do a separate
  check for `-fno-ipa-sra` support by $KERNEL_CC.

- Don't enable `-mgeneral-regs-only` for certain module files.
  Fix #13260

- Scope `GCC diagnostic ignored` statements to GCC only. Clang
  doesn't need them to compile the code.

Porting notes:
- Moved the stanzas removing -mgeneral-regs-only to Makefile.in
  since they wouldn't readily work in Kbuild.in and that did.

Reviewed-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: szubersk <szuberskidamian@gmail.com>
Closes #13260
Closes #14150

Closes #14624
Ported-by: Rich Ercolani <rincebrain@gmail.com
Signed-off-by: Rich Ercolani <rincebrain@gmail.com>
This commit is contained in:
szubersk
2022-11-30 20:27:28 +10:00
committed by Tony Hutter
parent 1322f07ade
commit dbbc2f9688
9 changed files with 54 additions and 3 deletions
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module/zcommon/Makefile.in
+4
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@@ -26,3 +26,7 @@ $(MODULE)-$(CONFIG_X86) += zfs_fletcher_intel.o
$(MODULE)-$(CONFIG_X86) += zfs_fletcher_sse.o
$(MODULE)-$(CONFIG_X86) += zfs_fletcher_avx512.o
$(MODULE)-$(CONFIG_ARM64) += zfs_fletcher_aarch64_neon.o
ifeq ($(CONFIG_ARM64),y)
CFLAGS_REMOVE_zfs_fletcher_aarch64_neon.o += -mgeneral-regs-only
endif