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Full Discussion: Use of goto keyword in kernel programming
Operating Systems Linux Ubuntu Use of goto keyword in kernel programming Post 302967974 by BHASKAR JUPUDI on Tuesday 1st of March 2016 10:36:42 PM
Old 03-01-2016
Use of goto keyword in kernel programming
I have found many source files in the kernel using goto keyword instead of just doing the actual thing. For example:

Code:
if(blah)
goto x;
--
--
--
--
--

x: return blah-blah

Is there any specific reason for writing the code like this? The first thought that came to my mind is minimizing code duplication. If we are going to change the
Code:
return (blah-blah)

then with the use of goto we have to change only one instance of it. I'm asking this because if we consider the above situation, if we replace
Code:
goto x

with
Code:
return blah-blah

(to avoid the overhead of calling goto) then will that be a patch?
 

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LEARN ABOUT DEBIAN

seeded-in-ubuntu

seeded-in-ubuntu(1)					      General Commands Manual					       seeded-in-ubuntu(1)

NAME

       seeded-in-ubuntu - Determine whether a package is safe to upload during a freeze

SYNOPSIS

       seeded-in-ubuntu [options] package...

DESCRIPTION

       Lists all the current daily images containing the specified packages.  Or whether the package is part of the supported seed.

       If it isn't on an image, it should be safe to upload.  During the final freeze, one should avoid packages in the supported seed too.

       An index of the current manifests is downloaded from UbuntuWire.

OPTIONS

       -b, --binary
	      The  packages  specified	are  binary packages.  This is faster than source packages, as otherwise we must query LP to determine the
	      binary packages that every specified source package builds.

       -u URL, --data-url=URL
	      URL for index of seeded packages.  Default: UbuntuWire's service at http://qa.ubuntuwire.org/ubuntu-seeded-packages/seeded.json.gz.

       -h, --help
	      Display a help message and exit

EXAMPLES

       All the images that contain unity:

	      seeded-in-ubuntu -b unity

AUTHORS

       seeded-in-ubuntu and this manpage were written by Stefano Rivera <stefanor@ubuntu.com>.

       Both are released under the terms of the ISC License.

ubuntu-dev-tools						   December 2011					       seeded-in-ubuntu(1)
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