From c982359460268cca466ce5fae3e6ef6a6c3e7c12 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=BD=D0=B0=D0=B1?= <nabijaczleweli@nabijaczleweli.xyz>
Date: Mon, 25 Apr 2022 23:27:03 +0200
Subject: [PATCH] cppcheck: explicitly exclude kernel code from userspace
 checks
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Thus extracting the final shred of utility

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
---
 config/CppCheck.am         | 6 +++---
 lib/libavl/Makefile.am     | 1 -
 lib/libicp/Makefile.am     | 1 -
 lib/libunicode/Makefile.am | 1 -
 lib/libzstd/Makefile.am    | 1 -
 5 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/config/CppCheck.am b/config/CppCheck.am
index 0c2502f3ddde..89a067d814ff 100644
--- a/config/CppCheck.am
+++ b/config/CppCheck.am
@@ -1,5 +1,5 @@
 #
-# Default rules for running cppcheck against the user space components.
+# cppcheck for userspace – nodist_*_SOURCES are kernel code and cppcheck goes crazy on them.
 #
 
 PHONY += cppcheck
@@ -15,7 +15,7 @@ cppcheck-recursive-%:
 
 _CTGT = $(subst cppcheck-for-,,$@)
 cppcheck-for-%:
-	@[ -n "$($(_CTGT)_SOURCES)$(dist_$(_CTGT)_SOURCES)$(nodist_$(_CTGT)_SOURCES)" ]
-	$(CPPCHECK) -j$(CPU_COUNT) $(CPPCHECKFLAGS) $(patsubst -U%,,$(patsubst -D%,,$(filter-out $(AM_CPPFLAGS_NOCHECK),$(or $($(_CTGT)_CPPFLAGS),$(AM_CPPFLAGS))))) $($(_CTGT)_SOURCES) $(dist_$(_CTGT)_SOURCES) $(nodist_$(_CTGT)_SOURCES)
+	@[ -n "$($(_CTGT)_SOURCES)$(dist_$(_CTGT)_SOURCES)" ]
+	$(CPPCHECK) -j$(CPU_COUNT) $(CPPCHECKFLAGS) $(patsubst -U%,,$(patsubst -D%,,$(filter-out $(AM_CPPFLAGS_NOCHECK),$(or $($(_CTGT)_CPPFLAGS),$(AM_CPPFLAGS))))) $($(_CTGT)_SOURCES) $(dist_$(_CTGT)_SOURCES)
 
 cppcheck: $(addprefix cppcheck-for-,$(subst -,_,$(subst .,_,$(subst /,_,$(CPPCHECKTARGETS))))) $(addprefix cppcheck-recursive-,$(CPPCHECKDIRS))
diff --git a/lib/libavl/Makefile.am b/lib/libavl/Makefile.am
index 5eaf4c08728d..3b302ee9deae 100644
--- a/lib/libavl/Makefile.am
+++ b/lib/libavl/Makefile.am
@@ -2,7 +2,6 @@ libavl_la_CFLAGS  = $(AM_CFLAGS) $(KERNEL_CFLAGS) $(LIBRARY_CFLAGS)
 libavl_la_CFLAGS += -fvisibility=hidden
 
 noinst_LTLIBRARIES += libavl.la
-CPPCHECKTARGETS    += libavl.la
 
 nodist_libavl_la_SOURCES = \
 	module/avl/avl.c
diff --git a/lib/libicp/Makefile.am b/lib/libicp/Makefile.am
index 00bfc5c36ae9..304f49e39005 100644
--- a/lib/libicp/Makefile.am
+++ b/lib/libicp/Makefile.am
@@ -2,7 +2,6 @@ libicp_la_CCASFLAGS = $(AM_CCASFLAGS)
 libicp_la_CFLAGS    = $(AM_CFLAGS) $(KERNEL_CFLAGS) $(LIBRARY_CFLAGS)
 
 noinst_LTLIBRARIES += libicp.la
-CPPCHECKTARGETS    += libicp.la
 
 nodist_libicp_la_SOURCES = \
 	module/icp/spi/kcf_spi.c \
diff --git a/lib/libunicode/Makefile.am b/lib/libunicode/Makefile.am
index 82fee0101346..906759471163 100644
--- a/lib/libunicode/Makefile.am
+++ b/lib/libunicode/Makefile.am
@@ -1,7 +1,6 @@
 libunicode_la_CFLAGS = $(AM_CFLAGS) $(KERNEL_CFLAGS) $(LIBRARY_CFLAGS)
 
 noinst_LTLIBRARIES += libunicode.la
-CPPCHECKTARGETS    += libunicode.la
 
 nodist_libunicode_la_SOURCES = \
 	module/unicode/u8_textprep.c \
diff --git a/lib/libzstd/Makefile.am b/lib/libzstd/Makefile.am
index 729856862644..49bfb328a6f7 100644
--- a/lib/libzstd/Makefile.am
+++ b/lib/libzstd/Makefile.am
@@ -4,7 +4,6 @@ libzstd_la_CFLAGS  = $(AM_CFLAGS) $(LIBRARY_CFLAGS)
 libzstd_la_CFLAGS += -fno-tree-vectorize
 
 noinst_LTLIBRARIES += libzstd.la
-CPPCHECKTARGETS    += libzstd.la
 
 nodist_libzstd_la_SOURCES = \
 	module/zstd/lib/common/entropy_common.c \