On Tue, 2017-07-04 at 23:08 +0200, Heinrich Schuchardt wrote:

On 07/04/2017 10:44 PM, Joe Perches wrote:

...

On Tue, 2017-07-04 at 21:29 +0200, Heinrich Schuchardt wrote:

...

The U-Boot project uses the same scripts/checkpatch.pl as the Linux kernel. I ran upon the problem below when working on U-Boot. But I guess it should be fixed in the Linux upstream.

Running checkpatch for this email produces WARNING: storage class should be at the beginning of the declaration

This relates to the parameter with asmlinkage.

asmlinkage is at the start of the parameter so I think this a false positive.

Signed-off-by: Heinrich.Schuchardt xypron.glpk@gmx.de

cmd/bootefi.c | 22 +++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-)

diff --git a/cmd/bootefi.c b/cmd/bootefi.c index 771300ee94..4df468307c 100644 --- a/cmd/bootefi.c +++ b/cmd/bootefi.c @@ -147,6 +147,12 @@ static void *copy_fdt(void *fdt) return new_fdt; }

+static ulong efi_do_enter(void *image_handle,

• struct efi_system_table *st, asmlinkage ulong (*entry)(
  

• void *image_handle, struct efi_system_table *st))
  

+{

• return 0;

+}

/* end */

Perhaps this?

Allow storage class after comma for function pointers.

Miscellanea:

o Add missing semicolon after WARN statement

scripts/checkpatch.pl | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 43171ed88115..c7490ab48ce1 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -5577,9 +5577,10 @@ sub process { }

# Check that the storage class is at the beginning of a declaration

• if ($line =~ /\b$Storage\b/ && $line !~ /^.\s*$Storage\b/) {
  

• if ($line =~ /\b$Storage\b/ &&
  

•     $line !~ /^.\s*(?:.*,\s*)?$Storage\b/) {
  WARN("STORAGE_CLASS",
  

• 	     "storage class should be at the beginning of the declaration\n" . $herecurr)
  

• 	     "storage class should be at the beginning of the declaration\n" . $herecurr);
  

  }

# check the location of the inline attribute, that it is between

Thank you. This works for all cases but

+static ulong efi_do_enter(ulong asmlinkage (*entry)(void *image_handle,

•                      struct efi_system_table *st))
  

+{

•   return 0;
  

+}

Here I get WARNING: space prohibited between function name and open parenthesis '(' where I would have expected WARNING: storage class should be at the beginning of the declaration

checkpatch is and always will be a stupid brainless little script based on a collection of regexes.

It won't get everything correct.

Your example has static as the first entry on the line. static is a "$Storage" so it is at the beginning of the declaration.

This particular declaration has a function pointer as one of its arguments.

I do wonder if asmlinkage is even appropriate as part of that function pointer argument.

Anyway, maybe this: --- scripts/checkpatch.pl | 12 ++++++++++--  1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 43171ed88115..21bb6814f8bb 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -5576,10 +5576,18 @@ sub process {   "architecture specific defines should be avoided\n" . $herecurr);   }   +# check that the storage class is not after a type + if ($line =~ /\b($Type)\s+($Storage)\b/) { + WARN("STORAGE_CLASS", + "storage class '$2' should be located before type '$1'\n" . $herecurr); + }  # Check that the storage class is at the beginning of a declaration - if ($line =~ /\b$Storage\b/ && $line !~ /^.\s*$Storage\b/) { + if ($line =~ /\b$Storage\b/ && + $line !~ /^.\s*$Storage/ && + $line =~ /^.\s*(.+?)$Storage\s/ && + $1 !~ /[,)]\s*$/) {   WARN("STORAGE_CLASS", - "storage class should be at the beginning of the declaration\n" . $herecurr) + "storage class should be at the beginning of the declaration\n" . $herecurr);   }    # check the location of the inline attribute, that it is between