You may want to [[http://www.kernel.org/pub/software/scm/git/docs/git-push.html|git-push]] your changes to a remote git tree so that your could make your changes publicly available, and/or you could provide a maintainer with a pull request. 

=== Add a remote git repo ===
{{{
git remote add <name of repo> <link to the tree>
}}}
example:
{{{
git remote add lucid ssh://zinc.canonical.com/srv/kernel.ubuntu.com/git/manjo/ubuntu-lucid.git
}}}

=== push your changes to remote git repo ===
{{{
git push <name of repo> <local branch>
}}}
example:
{{{
git push lucid lp554433
}}}

=== Modifying a branch after a push ===
At times corrections need to be made after the changes are pushed to the repo. Here are the steps to push these changes to the repo under the same branch.
 * make your code changes, corrections or modifications
 * modify your git commit message to reflect the changes you have made
{{{
git commit --amend
}}}
 * push your changes to the remote repo. Note the '''+''' sign prefix to local branch name. 
{{{
git push <name of repo> +<local branch>
}}}
example:
{{{
git push lucid +lp554433
}}}