WireGuard kernel module backport for Linux 3.10 - 5.5 https://git.zx2c4.com/wireguard-linux-compat/atom/src/Kbuild?h=master 2021-06-02T16:31:09Z 2021-06-02T16:31:09Z Jason A. Donenfeld Jason@zx2c4.com 2021-05-31T12:28:46Z urn:sha1:405caf01e9b234bc512ec93ac055d57336ce18d9 Apparently, various versions of gcc have O3-related miscompiles. Looking at the difference between -O2 and -O3 for gcc 11 doesn't indicate miscompiles, but the difference also doesn't seem so significant for performance that it's worth risking. Link: https://lore.kernel.org/lkml/CAHk-=wjuoGyxDhAF8SsrTkN0-YfCx7E6jUN3ikC_tn2AKWTTsA@mail.gmail.com/ Link: https://lore.kernel.org/lkml/CAHmME9otB5Wwxp7H8bR_i2uH2esEMvoBMC8uEXBMH9p0q1s6Bw@mail.gmail.com/ Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> 2020-06-18T23:47:36Z Jason A. Donenfeld Jason@zx2c4.com 2020-06-18T23:44:56Z urn:sha1:178cdfffb99f2fd6fb4a5bfd2f9319461d93f53b This was originally done in 2015 as a means of decreasing module size, but it has the effect of creating JUMP11 relocations on ARM when compiled in THUMB2 mode without CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11=y, which results in `B ...` instructions being generated with jumps that are too far, rather than `B.W ...` instructions, which can handle the larger sized jump. Get rid of the old hack, which had minimum utility anyway. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> 2020-01-11T15:49:18Z Jason A. Donenfeld Jason@zx2c4.com 2020-01-08T22:48:35Z urn:sha1:1aa1f0ab927e8e2e83fcbcdbcf8a1f5ae31ac153 We also no longer do anything dynamic with dkms.conf, and we don't rewrite any files at all, but rather pass this through as a cflag to the compiler optionally. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Reported-by: Egbert Verhage <egbert@eggiecode.org> 2019-09-13T18:27:26Z Jason A. Donenfeld Jason@zx2c4.com 2019-09-13T18:27:26Z urn:sha1:818e7f35fada4884b0f5dbb8778bf4379db4f2d5 1280 is considered the absolute minimum for 64bit archs. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> 2019-03-25T12:07:01Z Jason A. Donenfeld Jason@zx2c4.com 2019-03-25T11:39:47Z urn:sha1:6c58b00a5a30d783048dc5e1f7aa8961d739e740 Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> 2019-01-08T00:26:10Z Jason A. Donenfeld Jason@zx2c4.com 2019-01-02T00:58:10Z urn:sha1:962d7c947da268bec508bd17a1b6d5e4df07b943 Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> 2018-09-23T15:05:23Z Jason A. Donenfeld Jason@zx2c4.com 2018-09-20T23:50:11Z urn:sha1:72d89c6747384cc11aad0ab7052be4a260a0b512 This brings it under 1280 on 64-bit and under 1024 on 32-bit systems. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> 2018-09-04T05:52:11Z Jason A. Donenfeld Jason@zx2c4.com 2018-08-29T05:50:35Z urn:sha1:07dac52be6336be4a77a399fd7928802711fb77f Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> 2018-05-30T23:24:51Z Jason A. Donenfeld Jason@zx2c4.com 2018-05-29T14:06:57Z urn:sha1:101b71c192047d5966b3c59dba088957ca51e588 Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> 2018-05-18T12:36:56Z René van Dorst opensource@vdorst.com 2018-02-13T11:10:51Z urn:sha1:af7b41d800418528fda52a4112d180396e6099ee Signed-off-by: René van Dorst <opensource@vdorst.com> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>