Merge tag 'kbuild-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

 - improve fixdep to coalesce consecutive slashes in dep-files

 - fix some issues of the maintainer string generation in deb-pkg script

 - remove unused CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX and clean-up
   several tools and linker scripts

 - clean-up modpost

 - allow to enable the dead code/data elimination for PowerPC in EXPERT
   mode

 - improve two coccinelle scripts for better performance

 - pass endianness and machine size flags to sparse for all architecture

 - misc fixes

* tag 'kbuild-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (25 commits)
  kbuild: add machine size to CHECKFLAGS
  kbuild: add endianness flag to CHEKCFLAGS
  kbuild: $(CHECK) doesnt need NOSTDINC_FLAGS twice
  scripts: Fixed printf format mismatch
  scripts/tags.sh: use `find` for $ALLSOURCE_ARCHS generation
  coccinelle: deref_null: improve performance
  coccinelle: mini_lock: improve performance
  powerpc: Allow LD_DEAD_CODE_DATA_ELIMINATION to be selected
  kbuild: Allow LD_DEAD_CODE_DATA_ELIMINATION to be selectable if enabled
  kbuild: LD_DEAD_CODE_DATA_ELIMINATION no -ffunction-sections/-fdata-sections for module build
  kbuild: Fix asm-generic/vmlinux.lds.h for LD_DEAD_CODE_DATA_ELIMINATION
  modpost: constify *modname function argument where possible
  modpost: remove redundant is_vmlinux() test
  modpost: use strstarts() helper more widely
  modpost: pass struct elf_info pointer to get_modinfo()
  checkpatch: remove VMLINUX_SYMBOL() check
  vmlinux.lds.h: remove no-op macro VMLINUX_SYMBOL()
  kbuild: remove CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX
  export.h: remove code for prefixing symbols with underscore
  depmod.sh: remove symbol prefix support
  ...

2 files changed, 24 insertions, 22 deletions

diff --git a/scripts/coccinelle/locks/mini_lock.cocci b/scripts/coccinelle/locks/mini_lock.cocci
index 47f649b0ea87..19c6ee5b986b 100644
--- a/scripts/coccinelle/locks/mini_lock.cocci
+++ b/scripts/coccinelle/locks/mini_lock.cocci
@@ -67,12 +67,14 @@ identifier lock,unlock;
 @@
 
 *lock(E1@p,...);
-<+... when != E1
+... when != E1
+    when any
 if (...) {
   ... when != E1
 *  return@r ...;
 }
-...+>
+... when != E1
+    when any
 *unlock@up(E1,...);
 
 @script:python depends on org@
diff --git a/scripts/coccinelle/null/deref_null.cocci b/scripts/coccinelle/null/deref_null.cocci
index b16ccb7663a7..cbc6184e69ef 100644
--- a/scripts/coccinelle/null/deref_null.cocci
+++ b/scripts/coccinelle/null/deref_null.cocci
@@ -14,18 +14,10 @@ virtual context
 virtual org
 virtual report
 
-@ifm@
-expression *E;
-statement S1,S2;
-position p1;
-@@
-
-if@p1 ((E == NULL && ...) || ...) S1 else S2
-
 // The following two rules are separate, because both can match a single
 // expression in different ways
 @pr1 expression@
-expression *ifm.E;
+expression E;
 identifier f;
 position p1;
 @@
@@ -33,7 +25,7 @@ position p1;
  (E != NULL && ...) ? <+...E->f@p1...+> : ...
 
 @pr2 expression@
-expression *ifm.E;
+expression E;
 identifier f;
 position p2;
 @@
@@ -46,6 +38,14 @@ position p2;
  sizeof(<+...E->f@p2...+>)
 )
 
+@ifm@
+expression *E;
+statement S1,S2;
+position p1;
+@@
+
+if@p1 ((E == NULL && ...) || ...) S1 else S2
+
 // For org and report modes
 
 @r depends on !context && (org || report) exists@
@@ -212,16 +212,8 @@ else S3
 // The following three rules are duplicates of ifm, pr1 and pr2 respectively.
 // It is need because the previous rule as already made a "change".
 
-@ifm1 depends on context && !org && !report@
-expression *E;
-statement S1,S2;
-position p1;
-@@
-
-if@p1 ((E == NULL && ...) || ...) S1 else S2
-
 @pr11 depends on context && !org && !report expression@
-expression *ifm1.E;
+expression E;
 identifier f;
 position p1;
 @@
@@ -229,7 +221,7 @@ position p1;
  (E != NULL && ...) ? <+...E->f@p1...+> : ...
 
 @pr12 depends on context && !org && !report expression@
-expression *ifm1.E;
+expression E;
 identifier f;
 position p2;
 @@
@@ -242,6 +234,14 @@ position p2;
  sizeof(<+...E->f@p2...+>)
 )
 
+@ifm1 depends on context && !org && !report@
+expression *E;
+statement S1,S2;
+position p1;
+@@
+
+if@p1 ((E == NULL && ...) || ...) S1 else S2
+
 @depends on context && !org && !report exists@
 expression subE <= ifm1.E;
 expression *ifm1.E;