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-OpenSBI Contributing Guidelines
-===============================
-
-All contributions to OpenSBI should be sent as GitHub Pull Requests (PRs) to the main repository avaliable at: https://github.com/riscv/opensbi
-
-As well as that all work must follow the following rules:
-1. We follow the [Linux coding style](https://www.kernel.org/doc/html/v4.10/process/coding-style.html). This means that ALL patches must include the Signed-off-by line.
-2. Commit subject must have at least one ":" prefix. Common ones are "lib:", "platform:", "firmware:", "docs:" and "top:".
-3. Maintainer should use "Rebase and Merge" when using GitHub to merge pull requests to avoid unnecessary merge commits.
-4. Maintainer should avoid creating branches directly in main riscv/opensbi repository. Instead prefer fork of GitHub riscv/opensbi repository and create branches in your own fork for pull requests.
-5. Maintainer cannot merge his own pull requests on GitHub.
-6. A pull request must get at least one review from relevant maintainer.
-7. A pull request must spend at least 24 hours in review so that everyone gets a chance to review.
+OpenSBI Contribution Guideline
+==============================
+
+All contributions to OpenSBI should be sent as GitHub Pull Requests (PRs) to
+[OpenSBI main repository].
+
+All contributed work must follow the following rules:
+1. OpenSBI code should be written in accordance to [Linux coding style].
+2. This project embraces the [Developer Certificate of Origin (DCO)] for
+contributions. This means that you must agree to the following prior to
+submitting patches: if you agree with this developer certificate you
+acknowledge this by adding a Signed-off-by tag to your patch commit log.
+Every submitted patch must have this tag.
+3. A commit message must have a subject line, followed by a blank line,
+followed by a description of the patch content. A blank line and the author
+Signed-off-by tag must follow this description.
+4. A commit subject line must start with a prefix followed by a ":". Common
+prefixes are for example "lib:", "platform:", "firmware:", "docs:" and "top:".
+5. Maintainers should use "Rebase and Merge" when using GitHub to merge pull
+requests to avoid creating unnecessary merge commits.
+6. Maintainers should avoid creating branches directly in the main
+riscv/opensbi repository. Instead prefer using a fork of riscv/opensbi main
+repository and branches within that fork to create pull requests.
+7. A maintainer cannot merge his own pull requests in riscv/opensbi main
+repository.
+8. A pull request must get at least one review from a maintainer.
+9. A pull request must spend at least 24 hours in review to allow for other
+developers to review.
+
+-----------------------------------------------------------------------
+
+Developer Certificate of Origin
+Version 1.1
+
+Copyright (C) 2004, 2006 The Linux Foundation and its contributors.
+660 York Street, Suite 102,
+San Francisco, CA 94110 USA
+
+Everyone is permitted to copy and distribute verbatim copies of this
+license document, but changing it is not allowed.
+
+
+Developer's Certificate of Origin 1.1
+
+By making a contribution to this project, I certify that:
+
+(a) The contribution was created in whole or in part by me and I
+ have the right to submit it under the open source license
+ indicated in the file; or
+
+(b) The contribution is based upon previous work that, to the best
+ of my knowledge, is covered under an appropriate open source
+ license and I have the right under that license to submit that
+ work with modifications, whether created in whole or in part
+ by me, under the same open source license (unless I am
+ permitted to submit under a different license), as indicated
+ in the file; or
+
+(c) The contribution was provided directly to me by some other
+ person who certified (a), (b) or (c) and I have not modified
+ it.
+
+(d) I understand and agree that this project and the contribution
+ are public and that a record of the contribution (including all
+ personal information I submit with it, including my sign-off) is
+ maintained indefinitely and may be redistributed consistent with
+ this project or the open source license(s) involved.
+
+-----------------------------------------------------------------------
+
+[OpenSBI main repository]: https://github.com/riscv/opensbi
+[Linux coding style]: https://www.kernel.org/doc/html/v4.10/process/coding-style.html
+[Developer Certificate of Origin (DCO)]: http://developercertificate.org/
+