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authorJonathan Cameron <Jonathan.Cameron@huawei.com>2020-11-17 17:52:55 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2020-12-10 12:15:21 -0500
commit5c51f435cbcb4fe0717733ec093bb942617dcf4f (patch)
treef5ef9d6c6becfd833defe360222039689144ebb5 /scripts
parent697f668ad1f9e8aae6bb0666a367a1849f84f896 (diff)
downloadfocaccia-qemu-5c51f435cbcb4fe0717733ec093bb942617dcf4f.tar.gz
focaccia-qemu-5c51f435cbcb4fe0717733ec093bb942617dcf4f.zip
kernel-doc: add support for ____cacheline_aligned attribute
Subroutine dump_struct uses type attributes to check if the struct
syntax is valid. Then, it removes all attributes before using it for
output. `____cacheline_aligned` is an attribute that is
not included in both steps. Add it, since it is used by kernel structs.

Based on previous patch to add ____cacheline_aligned_in_smp.
Motivated by patches to reorder this attribute to before the
variable name.   Whilst we could do that in all cases, that would
be a massive change and it is more common in the kernel to place
this particular attribute after the variable name. A quick grep
suggests approximately 400 instances of which 341 have this
attribute just before a semicolon and hence after the variable name.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200910185415.653139-1-jic23@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20201117165312.118257-13-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'scripts')
-rwxr-xr-xscripts/kernel-doc3
1 files changed, 2 insertions, 1 deletions
diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 3fd6f3925e..c4c5640ded 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -1113,7 +1113,7 @@ sub dump_struct($$) {
     my $x = shift;
     my $file = shift;
 
-    if ($x =~ /(struct|union)\s+(\w+)\s*\{(.*)\}(\s*(__packed|__aligned|____cacheline_aligned_in_smp|__attribute__\s*\(\([a-z0-9,_\s\(\)]*\)\)))*/) {
+    if ($x =~ /(struct|union)\s+(\w+)\s*\{(.*)\}(\s*(__packed|__aligned|____cacheline_aligned_in_smp|____cacheline_aligned|__attribute__\s*\(\([a-z0-9,_\s\(\)]*\)\)))*/) {
 	my $decl_type = $1;
 	$declaration_name = $2;
 	my $members = $3;
@@ -1129,6 +1129,7 @@ sub dump_struct($$) {
 	$members =~ s/\s*__packed\s*/ /gos;
 	$members =~ s/\s*CRYPTO_MINALIGN_ATTR/ /gos;
 	$members =~ s/\s*____cacheline_aligned_in_smp/ /gos;
+	$members =~ s/\s*____cacheline_aligned/ /gos;
 
 	# replace DECLARE_BITMAP
 	$members =~ s/__ETHTOOL_DECLARE_LINK_MODE_MASK\s*\(([^\)]+)\)/DECLARE_BITMAP($1, __ETHTOOL_LINK_MODE_MASK_NBITS)/gos;