Re: [PATCH 3/3] convert headers_install.pl->headers_install.sh

From: Rob Landley
Date: Tue Feb 26 2013 - 10:25:42 EST


On 02/24/2013 02:42:56 PM, Michal Marek wrote:
On Mon, Dec 17, 2012 at 05:12:51PM -0800, rob@xxxxxxxxxxx wrote:
> From: Rob Landley <rob@xxxxxxxxxxx>
>
> Remove perl from make headers_install by replacing a perl script (doing
> a simple regex search and replace) with a smaller, faster, simpler,
> POSIX-2008 shell script implementation. The new shell script is a single
> for loop calling sed and piping its output through unifdef to produce the
> target file.
>
> Signed-off-by: Rob Landley <rob@xxxxxxxxxxx>
> ---
>
> scripts/Makefile.headersinst | 4 +-
> scripts/headers_install.pl | 63 ---------------------------------
> scripts/headers_install.sh | 43 ++++++++++++++++++++++
> 3 files changed, 45 insertions(+), 65 deletions(-)

Hi Rob,

sorry for the long delay. In general, the patch looks OK, I only have
two remarks:

Thanks for the review.

> + -e 's/(^|[ \t])(inline|asm|volatile)([ \t(]|$)/\1__\2__\3/g' \

This regexp does not match the 'volatile' in

#define XVMCLOCKPTR(saPriv,lockNo) \
((volatile struct drm_hw_lock *)(((((unsigned long) (saPriv)->XvMCLockArea) + \
(VIA_MAX_CACHELINE_SIZE - 1)) & \
~(VIA_MAX_CACHELINE_SIZE - 1)) + \
VIA_MAX_CACHELINE_SIZE*(lockNo)))

in include/uapi/drm/via_drm.h.

Looks like the first range needs to be [ \t(], same as the second one. I'll redo the patches with that. (And rediff for offset noise.)

> --- a/scripts/headers_install.pl
> +++ /dev/null
> @@ -1,63 +0,0 @@
> -#!/usr/bin/perl -w
> -#
> -# headers_install prepare the listed header files for use in
> -# user space and copy the files to their destination.
> -#
> -# Usage: headers_install.pl readdir installdir arch [files...]
> -# installdir: dir to install the files to
> -# arch: current architecture
> -# arch is used to force a reinstallation when the arch
> -# changes because kbuild then detect a command line change.

You are not passing $(SRCARCH) to the shell script. This seems OK, as
the list of files changes if needed, but the change should be mentioned
in the changelog.

Yup. The script wasn't using it, and to invoke it to do different things the remaining command line arguments already had to change.

I'll be sure to mention it in the respin, which should be sometime after lunch.

Thanks,
Michal


Thanks,

Rob--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/