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Fri, 30 Oct 2020 19:14:48 +0000 (UTC) Subject: Re: net/can/isotp.c:1240:13: sparse: sparse: incorrect type in initializer (different address spaces) To: Oliver Hartkopp , kernel test robot Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, Rich Felker , Yoshinori Sato , linux-can References: <202010290720.uQ3pTGrT-lkp@intel.com> <146bb489-abaf-c763-44b2-ac1200560885@pengutronix.de> <4d092e3f-052d-7593-131c-a9629136f07f@hartkopp.net> From: Marc Kleine-Budde Autocrypt: addr=mkl@pengutronix.de; prefer-encrypt=mutual; keydata= mQINBFFVq30BEACtnSvtXHoeHJxG6nRULcvlkW6RuNwHKmrqoksispp43X8+nwqIFYgb8UaX zu8T6kZP2wEIpM9RjEL3jdBjZNCsjSS6x1qzpc2+2ivjdiJsqeaagIgvy2JWy7vUa4/PyGfx QyUeXOxdj59DvLwAx8I6hOgeHx2X/ntKAMUxwawYfPZpP3gwTNKc27dJWSomOLgp+gbmOmgc 6U5KwhAxPTEb3CsT5RicsC+uQQFumdl5I6XS+pbeXZndXwnj5t84M+HEj7RN6bUfV2WZO/AB Xt5+qFkC/AVUcj/dcHvZwQJlGeZxoi4veCoOT2MYqfR0ax1MmN+LVRvKm29oSyD4Ts/97cbs XsZDRxnEG3z/7Winiv0ZanclA7v7CQwrzsbpCv+oj+zokGuKasofzKdpywkjAfSE1zTyF+8K nxBAmzwEqeQ3iKqBc3AcCseqSPX53mPqmwvNVS2GqBpnOfY7Mxr1AEmxdEcRYbhG6Xdn+ACq Dq0Db3A++3PhMSaOu125uIAIwMXRJIzCXYSqXo8NIeo9tobk0C/9w3fUfMTrBDtSviLHqlp8 eQEP8+TDSmRP/CwmFHv36jd+XGmBHzW5I7qw0OORRwNFYBeEuiOIgxAfjjbLGHh9SRwEqXAL kw+WVTwh0MN1k7I9/CDVlGvc3yIKS0sA+wudYiselXzgLuP5cQARAQABtCZNYXJjIEtsZWlu ZS1CdWRkZSA8bWtsQHBlbmd1dHJvbml4LmRlPokCVAQTAQoAPgIbAwIeAQIXgAULCQgHAwUV CgkICwUWAgMBABYhBMFAC6CzmJ5vvH1bXCte4hHFiupUBQJfEWX4BQkQo2czAAoJECte4hHF iupUvfMP/iNtiysSr5yU4tbMBzRkGov1/FjurfH1kPweLVHDwiQJOGBz9HgM5+n8boduRv36 0lU32g3PehN0UHZdHWhygUd6J09YUi2mJo1l2Fz1fQ8elUGUOXpT/xoxNQjslZjJGItCjza8 +D1DO+0cNFgElcNPa7DFBnglatOCZRiMjo4Wx0i8njEVRU+4ySRU7rCI36KPts+uVmZAMD7V 3qiR1buYklJaPCJsnXURXYsilBIE9mZRmQjTDVqjLWAit++flqUVmDjaD/pj2AQe2Jcmd2gm sYW5P1moz7ACA1GzMjLDmeFtpJOIB7lnDX0F/vvsG3V713/701aOzrXqBcEZ0E4aWeZJzaXw n1zVIrl/F3RKrWDhMKTkjYy7HA8hQ9SJApFXsgP334Vo0ea82H3dOU755P89+Eoj0y44MbQX 7xUy4UTRAFydPl4pJskveHfg4dO6Yf0PGIvVWOY1K04T1C5dpnHAEMvVNBrfTA8qcahRN82V /iIGB+KSC2xR79q1kv1oYn0GOnWkvZmMhqGLhxIqHYitwH4Jn5uRfanKYWBk12LicsjRiTyW Z9cJf2RgAtQgvMPvmaOL8vB3U4ava48qsRdgxhXMagU618EszVdYRNxGLCqsKVYIDySTrVzu ZGs2ibcRhN4TiSZjztWBAe1MaaGk05Ce4h5IdDLbOOxhuQENBF8SDLABCADohJLQ5yffd8Sq 8Lo9ymzgaLcWboyZ46pY4CCCcAFDRh++QNOJ8l4mEJMNdEa/yrW4lDQDhBWV75VdBuapYoal LFrSzDzrqlHGG4Rt4/XOqMo6eSeSLipYBu4Xhg59S9wZOWbHVT/6vZNmiTa3d40+gBg68dQ8 iqWSU5NhBJCJeLYdG6xxeUEtsq/25N1erxmhs/9TD0sIeX36rFgWldMwKmZPe8pgZEv39Sdd B+ykOlRuHag+ySJxwovfdVoWT0o0LrGlHzAYo6/ZSi/Iraa9R/7A1isWOBhw087BMNkRYx36 B77E4KbyBPx9h3wVyD/R6T0Q3ZNPu6SQLnsWojMzABEBAAGJAjwEGAEKACYWIQTBQAugs5ie b7x9W1wrXuIRxYrqVAUCXxIMsAIbDAUJAucGAAAKCRArXuIRxYrqVOu0D/48xSLyVZ5NN2Bb yqo3zxdv/PMGJSzM3JqSv7hnMZPQGy9XJaTc5Iz/hyXaNRwpH5X0UNKqhQhlztChuAKZ7iu+ 2VKzq4JJe9qmydRUwylluc4HmGwlIrDNvE0N66pRvC3h8tOVIsippAQlt5ciH74bJYXr0PYw Aksw1jugRxMbNRzgGECg4O6EBNaHwDzsVPX1tDj0d9t/7ClzJUy20gg8r9Wm/I/0rcNkQOpV RJLDtSbGSusKxor2XYmVtHGauag4YO6Vdq+2RjArB3oNLgSOGlYVpeqlut+YYHjWpaX/cTf8 /BHtIQuSAEu/WnycpM3Z9aaLocYhbp5lQKL6/bcWQ3udd0RfFR/Gv7eR7rn3evfqNTtQdo4/ YNmd7P8TS7ALQV/5bNRe+ROLquoAZvhaaa6SOvArcmFccnPeyluX8+o9K3BCdXPwONhsrxGO wrPI+7XKMlwWI3O076NqNshh6mm8NIC0mDUr7zBUITa67P3Q2VoPoiPkCL9RtsXdQx5BI9iI h/6QlzDxcBdw2TVWyGkVTCdeCBpuRndOMVmfjSWdCXXJCLXO6sYeculJyPkuNvumxgwUiK/H AqqdUfy1HqtzP2FVhG5Ce0TeMJepagR2CHPXNg88Xw3PDjzdo+zNpqPHOZVKpLUkCvRv1p1q m1qwQVWtAwMML/cuPga78rkBDQRfEXGWAQgAt0Cq8SRiLhWyTqkf16Zv/GLkUgN95RO5ntYM fnc2Tr3UlRq2Cqt+TAvB928lN3WHBZx6DkuxRM/Y/iSyMuhzL5FfhsICuyiBs5f3QG70eZx+ Bdj4I7LpnIAzmBdNWxMHpt0m7UnkNVofA0yH6rcpCsPrdPRJNOLFI6ZqXDQk9VF+AB4HVAJY BDU3NAHoyVGdMlcxev0+gEXfBQswEcysAyvzcPVTAqmrDsupnIB2f0SDMROQCLO6F+/cLG4L Stbz+S6YFjESyXblhLckTiPURvDLTywyTOxJ7Mafz6ZCene9uEOqyd/h81nZOvRd1HrXjiTE 1CBw+Dbvbch1ZwGOTQARAQABiQNyBBgBCgAmFiEEwUALoLOYnm+8fVtcK17iEcWK6lQFAl8R cZYCGwIFCQLnoRoBQAkQK17iEcWK6lTAdCAEGQEKAB0WIQQreQhYm33JNgw/d6GpyVqK+u3v qQUCXxFxlgAKCRCpyVqK+u3vqatQCAC3QIk2Y0g/07xNLJwhWcD7JhIqfe7Qc5Vz9kf8ZpWr +6w4xwRfjUSmrXz3s6e/vrQsfdxjVMDFOkyG8c6DWJo0TVm6Ucrf9G06fsjjE/6cbE/gpBkk /hOVz/a7UIELT+HUf0zxhhu+C9hTSl8Nb0bwtm6JuoY5AW0LP2KoQ6LHXF9KNeiJZrSzG6WE h7nf3KRFS8cPKe+trbujXZRb36iIYUfXKiUqv5xamhohy1hw+7Sy8nLmw8rZPa40bDxX0/Gi 98eVyT4/vi+nUy1gF1jXgNBSkbTpbVwNuldBsGJsMEa8lXnYuLzn9frLdtufUjjCymdcV/iT sFKziU9AX7TLZ5AP/i1QMP9OlShRqERH34ufA8zTukNSBPIBfmSGUe6G2KEWjzzNPPgcPSZx Do4jfQ/m/CiiibM6YCa51Io72oq43vMeBwG9/vLdyev47bhSfMLTpxdlDJ7oXU9e8J61iAF7 vBwerBZL94I3QuPLAHptgG8zPGVzNKoAzxjlaxI1MfqAD9XUM80MYBVjunIQlkU/AubdvmMY X7hY1oMkTkC5hZNHLgIsDvWUG0g3sACfqF6gtMHY2lhQ0RxgxAEx+ULrk/svF6XGDe6iveyc z5Mg5SUggw3rMotqgjMHHRtB3nct6XqgPXVDGYR7nAkXitG+nyG5zWhbhRDglVZ0mLlW9hij z3Emwa94FaDhN2+1VqLFNZXhLwrNC5mlA6LUjCwOL+zb9a07HyjekLyVAdA6bZJ5BkSXJ1CO 5YeYolFjr4YU7GXcSVfUR6fpxrb8N+yH+kJhY3LmS9vb2IXxneE/ESkXM6a2YAZWfW8sgwTm 0yCEJ41rW/p3UpTV9wwE2VbGD1XjzVKl8SuAUfjjcGGys3yk5XQ5cccWTCwsVdo2uAcY1MVM HhN6YJjnMqbFoHQq0H+2YenTlTBn2Wsp8TIytE1GL6EbaPWbMh3VLRcihlMj28OUWGSERxat xlygDG5cBiY3snN3xJyBroh5xk/sHRgOdHpmujnFyu77y4RTZ2W8 Message-ID: <61008eb0-25f3-5986-b5f8-b9844a18dcef@pengutronix.de> Date: Fri, 30 Oct 2020 20:14:45 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 MIME-Version: 1.0 In-Reply-To: <4d092e3f-052d-7593-131c-a9629136f07f@hartkopp.net> Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="gcQtAk3Y3wGD1qeRrIMFsP8CFUu44HdeM" X-SA-Exim-Connect-IP: 2001:67c:670:201:5054:ff:fe8d:eefb X-SA-Exim-Mail-From: mkl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-can@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-can@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --gcQtAk3Y3wGD1qeRrIMFsP8CFUu44HdeM Content-Type: multipart/mixed; boundary="Ey7HHqifZyWpIgaCF7F5bNFo37YKlEfKH"; protected-headers="v1" From: Marc Kleine-Budde To: Oliver Hartkopp , kernel test robot Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, Rich Felker , Yoshinori Sato , linux-can Message-ID: <61008eb0-25f3-5986-b5f8-b9844a18dcef@pengutronix.de> Subject: Re: net/can/isotp.c:1240:13: sparse: sparse: incorrect type in initializer (different address spaces) References: <202010290720.uQ3pTGrT-lkp@intel.com> <146bb489-abaf-c763-44b2-ac1200560885@pengutronix.de> <4d092e3f-052d-7593-131c-a9629136f07f@hartkopp.net> In-Reply-To: <4d092e3f-052d-7593-131c-a9629136f07f@hartkopp.net> --Ey7HHqifZyWpIgaCF7F5bNFo37YKlEfKH Content-Type: text/plain; charset=utf-8 Content-Language: de-DE Content-Transfer-Encoding: quoted-printable On 10/30/20 7:55 PM, Oliver Hartkopp wrote: >>> 1229=09 >>> 1230 static int isotp_getsockopt(struct socket *sock, int level, i= nt optname, >>> 1231 char __user *optval, int __user *optlen) >>> 1232 { >>> 1233 struct sock *sk =3D sock->sk; >>> 1234 struct isotp_sock *so =3D isotp_sk(sk); >>> 1235 int len; >>> 1236 void *val; >>> 1237=09 >>> 1238 if (level !=3D SOL_CAN_ISOTP) >>> 1239 return -EINVAL; >>>> 1240 if (get_user(len, optlen)) >>> 1241 return -EFAULT; >>> 1242 if (len < 0) >>> 1243 return -EINVAL; >>> 1244=09 >=20 > Sorry but there are tons of identical items in the networking subsystem= =20 > in getsockopt functions. >=20 > And I don't get the sparse warning with make C=3D1 for none of the=20 > occurrences of Due to ARCH=3Dsh looks like sh is missing the some __user annotations so that sparse spwes= these warnings. Marc --=20 Pengutronix e.K. | Marc Kleine-Budde | Embedded Linux | https://www.pengutronix.de | Vertretung West/Dortmund | Phone: +49-231-2826-924 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | --Ey7HHqifZyWpIgaCF7F5bNFo37YKlEfKH-- --gcQtAk3Y3wGD1qeRrIMFsP8CFUu44HdeM Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCgAdFiEEK3kIWJt9yTYMP3ehqclaivrt76kFAl+cZiUACgkQqclaivrt 76lmYQgArcoc2n2AL8i1gs+u1y4w5Zr1QPq9scACmPok1fQQACbHbgSWoKOd3tTU N9+oNmTOkiKH/EZiSYQmhgvVTUkWL4g3zLa3/ci6HxZUrrpgyoX/eyMe/AbYUvva qTUJi8dLUrSWFQYUdgPVEIMDNMZ4n2KnKs6xb9tnyXXH0p5pk1r3su8d4A1QwIvu WIs97qfs5+tRJy2JbB9Y+K4GMmfvcnyqPZFwSRSXopPSRj+O6O74wRywd2MSN4rg NIuckZBOqBMq/mo2LtFmfS7N1BZ9vb/xzt1V7XmQvSXqw7LzGLk3kWWVzi9SRuIG xehHiULctOM5LwcMNUsHXGZa7CrXHg== =0zcV -----END PGP SIGNATURE----- --gcQtAk3Y3wGD1qeRrIMFsP8CFUu44HdeM-- From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============1276979903468737092==" MIME-Version: 1.0 From: Marc Kleine-Budde To: kbuild-all@lists.01.org Subject: Re: net/can/isotp.c:1240:13: sparse: sparse: incorrect type in initializer (different address spaces) Date: Fri, 30 Oct 2020 20:14:45 +0100 Message-ID: <61008eb0-25f3-5986-b5f8-b9844a18dcef@pengutronix.de> In-Reply-To: <4d092e3f-052d-7593-131c-a9629136f07f@hartkopp.net> List-Id: --===============1276979903468737092== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable On 10/30/20 7:55 PM, Oliver Hartkopp wrote: >>> 1229 = >>> 1230 static int isotp_getsockopt(struct socket *sock, int level, int= optname, >>> 1231 char __user *optval, int __user *optlen) >>> 1232 { >>> 1233 struct sock *sk =3D sock->sk; >>> 1234 struct isotp_sock *so =3D isotp_sk(sk); >>> 1235 int len; >>> 1236 void *val; >>> 1237 = >>> 1238 if (level !=3D SOL_CAN_ISOTP) >>> 1239 return -EINVAL; >>>> 1240 if (get_user(len, optlen)) >>> 1241 return -EFAULT; >>> 1242 if (len < 0) >>> 1243 return -EINVAL; >>> 1244 = > = > Sorry but there are tons of identical items in the networking subsystem = > in getsockopt functions. > = > And I don't get the sparse warning with make C=3D1 for none of the = > occurrences of Due to ARCH=3Dsh looks like sh is missing the some __user annotations so that sparse spwes t= hese warnings. Marc -- = Pengutronix e.K. | Marc Kleine-Budde | Embedded Linux | https://www.pengutronix.de | Vertretung West/Dortmund | Phone: +49-231-2826-924 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | --===============1276979903468737092== Content-Type: application/pgp-signature MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="signature.asc" LS0tLS1CRUdJTiBQR1AgU0lHTkFUVVJFLS0tLS0KCmlRRXpCQUVCQ2dBZEZpRUVLM2tJV0p0OXlU WU1QM2VocWNsYWl2cnQ3NmtGQWwrY1ppVUFDZ2tRcWNsYWl2cnQKNzZsbVlRZ0FyY29jMm4yQUw4 aTFncyt1MXk0dzVacjFRUHE5c2NBQ21Qb2sxZlFRQUNiSGJnU1dvS09kM3RUVQpOOStvTm1UT2tp S0gvRVppU1lRbWhndlZUVWtXTDRnM3pMYTMvY2k2SHhaVXJycGd5b1gvZXlNZS9BYllVdnZhCnFU VUppOGRMVXJTV0ZRWVVkZ1BWRUlNRE5NWjRuMktuS3M2eGI5dG55WFhIMHA1cGsxcjNzdThkNEEx UXdJdnUKV0lzOTdxZnM1K3RSSnkySmJCOVkrSzRHTW1mdmNueXFQWkZ3U1JTWG9wUFNSaitPNk83 NHdSeXdkMk1TTjRyZwpOSXVja1pCT3FCTXEvbW8yTHRGbWZTN04xQlo5dmIveHp0MVY3WG1RdlNY cXc3THpHTGsza1dXVnppOVNSdUlHCnhlaEhpVUxjdE9NNUx3Y01OVXNIWEdaYTdDclhIZz09Cj0w emNWCi0tLS0tRU5EIFBHUCBTSUdOQVRVUkUtLS0tLQo= --===============1276979903468737092==--