checkpatch.pl warns about using __attribute__((packed)) in kernel headers: "__packed is preferred over __attribute__((packed))". If one follows that advice it could cause problems in the exported header files, because the outside world doesn't know about this shortcut. For example busybox will fail to compile: CC miscutils/ubi_attach_detach.o In file included from miscutils/ubi_attach_detach.c:27:0: /usr/include/mtd/ubi-user.h:330:3: error: conflicting types for ‘__packed’ /usr/include/mtd/ubi-user.h:314:3: note: previous declaration of ‘__packed’ was here ... Fix the problem by substituting __packed with __attribute__((packed)) in the header_install.pl script. Cc: Artem Bityutskiy CC: Joe Perches Signed-off-by: Markus Trippelsdorf --- scripts/headers_install.pl | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) --- a/scripts/headers_install.pl +++ b/scripts/headers_install.pl @@ -35,6 +35,7 @@ foreach my $file (@files) { $line =~ s/([\s(])__iomem\s/$1/g; $line =~ s/\s__attribute_const__\s/ /g; $line =~ s/\s__attribute_const__$//g; + $line =~ s/\b__packed\b/__attribute__((packed))/g; $line =~ s/^#include //; $line =~ s/(^|\s)(inline)\b/$1__$2__/g; $line =~ s/(^|\s)(asm)\b(\s|[(]|$)/$1__$2__$3/g;