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Thu, 14 May 2020 19:07:37 +0000 (GMT) From: =?utf-8?q?=C5=81ukasz_Stelmach?= To: Matt Mackall , Herbert Xu , Arnd Bergmann , Greg Kroah-Hartman , Ray Jui , Scott Branden , bcm-kernel-feedback-list@broadcom.com, Kukjin Kim , Krzysztof Kozlowski , Florian Fainelli , Markus Elfring , Matthias Brugger , Stefan Wahren , linux-crypto@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org Subject: [PATCH 0/2] Set the quality value for two HW RNGs Date: Thu, 14 May 2020 21:07:32 +0200 Message-Id: <20200514190734.32746-1-l.stelmach@samsung.com> X-Mailer: git-send-email 2.25.0 MIME-Version: 1.0 Organization: Samsung R&D Institute Poland X-Brightmail-Tracker: H4sIAAAAAAAAA01Sa0hTYRjm81x2sk4dp+DLiqJRQaZmF+OjMhKCTpRd6EdhZK06qeSNHc2K SMtmac2NLVNnkWWheFttNnRpl5WuElslZWEl6TQ0FETJS/d51uXf8z2X93lf+BhC/pNSMPFJ qYI6SZWgpH1JW/O4K2T8YmNMWIMxBH83NMvwrUIzhau1TSR25ZQReGLwkQxnlZppfK5/FtZ1 fyawy3VTht86yhG2dL+mcOeHcR/cZr9E40LXXR9cYnRTuMSWh3BPkZXGg5VuhJ2Pc4i1/vzX CQPiTZ2tNF9vei/jSy33aN52fz5vqcih+XuXq2S89XoGn1dbgfi8vpuIN9e+IvlTT89Q/LBl 9lY22nf1ASEh/rCgXrxmr29c5UMrlWInj5zucNOZyEnkoikMcMshr671N/Zl5Fw5An1lPZIe Iwh6y796lWEEdz92/Y3UVNd7hTIEo+OnvZFPCCxtLymPi+YiQXfjMeURAjgNBcYhPekRCC4d NB/dkyZ/biU4uzJ9chHDkNx8yOyiPTTLrYKu3Aek1DYHik+2eHk/eFLknuRncEFQdardO3IO ZN0untwIuBsM5A9ZaSm8DrKzc7yD/KHfWSuT8CxoMZ4nPb3AZYDRsELKnkdguzTm9a+Cd88m aI+H4BaC2b5YoiOhorRfJkWnw5sBP2mF6WCwFRASzcLZbLnkngc1ugbvQAVo+8uRhHl4/vkn pUdzTf8dZvrvGNO/3hJEVKBAIU1MjBXEpUlCeqioShTTkmJD9ycnWtDvb9nywzlSh+zf9jkQ xyDlNDYsvzFGTqkOi0cTHQgYQhnAbjbfiZGzB1RHjwnq5D3qtARBdKCZDKkMZJdd69st52JV qcIhQUgR1H9UH2aKIhOdCT/YtzZwYJHik13RsMO4IWvk6vYOw1hwcJrGb5NGGxFVE5ldVnd1 q+7LVPbkFs22qJ4m9oquVxsrLjB1VzVst7s7o2G2vr66g2XQkJYuu7MueqnjwkRPY24CET5t fdtOfemLKwX7T4zSuzYebzconLZ9yRFBoe2GQsp6qyVCSYpxqiVBhFpU/QIQF34jkgMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrOIsWRmVeSWpSXmKPExsVy+t/xe7o/p+2NM7i8Xsji76Rj7BYbZ6xn tVjbe5TF4nzncmaLX++OsFs0L17PZtH9Ssai//FrZovz5zewW9w8tILRYtPja6wW9+/9ZLK4 vGsOm8WM8/uYLBZMfsJqsWBbH6PF05mb2SzerX7CaHH8RCezg7DH71+TGD1m3T/L5rFz1l12 j8Wb9rN5bDug6rFpVSebx/65a9g9Ni+p9+jbsorRo+/lBkaP9Vuusng0nWpn9fi8SS6AN0rP pii/tCRVISO/uMRWKdrQwkjP0NJCz8jEUs/Q2DzWyshUSd/OJiU1J7MstUjfLkEvY/XhzawF u1gqWm4/YWtgPM7cxcjJISFgIrFu7U4gm4tDSGApo8TH5WdYuxg5gBJSEivnpkPUCEv8udbF BlHzlFFiyeapYM1sAo4S/UtPsIIkRAQms0q82dPKBJJgFiiXaH34hBXEFhawkjj+qIEJZCiL gKpEwyM2kDCvgLXEo66DLBAL5CVmN56GigtKnJz5hAWknFlAXWL9PCGQML+AlsSapussENPl JZq3zmaewCgwC0nHLISOWUiqFjAyr2IUSS0tzk3PLTbUK07MLS7NS9dLzs/dxAiM9G3Hfm7e wXhpY/AhRgEORiUeXoOpe+OEWBPLiitzDzFKcDArifD6rd8dJ8SbklhZlVqUH19UmpNafIjR FOibicxSosn5wCSUVxJvaGpobmFpaG5sbmxmoSTO2yFwMEZIID2xJDU7NbUgtQimj4mDU6qB ken00bNaRVM4Ft4Rm/W65OIyfjcRm+sbJ9w6m83yz8wpsi8+VXr3bkE1ffZfF+4/7rm5/saz qbZeZbOXzF9/Jk7hi5zztlVbp/aYLVnlPanr386+tsU/73fMfmtV+9D/57bgfPnYeqWo9x/u xXT57DSadqH6YE20V37ilxpfS6/6zl82vNEd3kosxRmJhlrMRcWJAG2FeAMKAwAA X-CMS-MailID: 20200514190737eucas1p18ccdddb185ea7611683a6859e17bc721 X-Msg-Generator: CA X-RootMTR: 20200514190737eucas1p18ccdddb185ea7611683a6859e17bc721 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20200514190737eucas1p18ccdddb185ea7611683a6859e17bc721 References: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200514_120741_755490_399FD9A5 X-CRM114-Status: GOOD ( 13.48 ) X-Spam-Score: -5.2 (-----) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-5.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [210.118.77.12 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record 0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3) [210.118.77.12 listed in wl.mailspike.net] -0.0 SPF_PASS SPF: sender matches SPF record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.0 RCVD_IN_MSPIKE_WL Mailspike good senders -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?utf-8?q?=C5=81ukasz_Stelmach?= , Bartlomiej Zolnierkiewicz Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org The rng structure contains the quality field which tells how many bits of entropy can be obtained from 1024 bits read from a device. With the quality value set the hw_random framework starts a kernel thread to feed the entropy pool in the CRNG, which helps to initialize it quickly especially during boot. Łukasz Stelmach (2): hwrng: iproc-rng200 - Set the quality value hwrng: exynos - Set the quality value drivers/char/hw_random/exynos-trng.c | 1 + drivers/char/hw_random/iproc-rng200.c | 1 + 2 files changed, 2 insertions(+)