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Changes needed to DPDK are stored here as git patch files. Maintaining these
files using “git format-patch” and “git am” will make it simpler to manage
these changes. Patches made to DPDK should only be temporary until they are
accepted upstream and made available in the next DPDK release.
The following is the method used to generate these patches:
1. Git clone the package to a new directory:
# git clone http://dpdk.org/git/dpdk dpdk
2. Create a branch based on the release you wish to patch.
Note, “git tag” will show you all the release tags. The following example is
for release tag “v2.2.0” and will create a branch named “two_dot_two”.
# cd <root dir>
# git checkout -b two_dot_two v2.2.0
3. Apply all the existing patches to this new branch.
# git am </path/to/existing/patches/*>
4. Make your changes and commit your change to your repository.
# <edit files>
# git commit -s
5. Create the patch files with format-patch. This creates all the patch files
for your branch (two_dot_two), with your latest commits as the last ones.
# git format-patch master..two_dot_two
6. Copy, add and commit the new patches into the patches directory.
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