# git rev-parse -q --verify ab851d49f6bfc781edd8bd44c72ec1e49211670b^{commit} ab851d49f6bfc781edd8bd44c72ec1e49211670b already have revision, skipping fetch # git checkout -q -f -B kisskb ab851d49f6bfc781edd8bd44c72ec1e49211670b # git clean -qxdf # < git log -1 # commit ab851d49f6bfc781edd8bd44c72ec1e49211670b # Merge: 1d87200446f1 e3cb0c7102f0 # Author: Linus Torvalds # Date: Tue Nov 26 11:12:02 2019 -0800 # # Merge branch 'x86-iopl-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip # # Pull x86 iopl updates from Ingo Molnar: # "This implements a nice simplification of the iopl and ioperm code that # Thomas Gleixner discovered: we can implement the IO privilege features # of the iopl system call by using the IO permission bitmap in # permissive mode, while trapping CLI/STI/POPF/PUSHF uses in user-space # if they change the interrupt flag. # # This implements that feature, with testing facilities and related # cleanups" # # [ "Simplification" may be an over-statement. The main goal is to avoid # the cli/sti of iopl by effectively implementing the IO port access # parts of iopl in terms of ioperm. # # This may end up not workign well in case people actually depend on # cli/sti being available, or if there are mixed uses of iopl and # ioperm. We will see.. - Linus ] # # * 'x86-iopl-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (22 commits) # x86/ioperm: Fix use of deprecated config option # x86/entry/32: Clarify register saving in __switch_to_asm() # selftests/x86/iopl: Extend test to cover IOPL emulation # x86/ioperm: Extend IOPL config to control ioperm() as well # x86/iopl: Remove legacy IOPL option # x86/iopl: Restrict iopl() permission scope # x86/iopl: Fixup misleading comment # selftests/x86/ioperm: Extend testing so the shared bitmap is exercised # x86/ioperm: Share I/O bitmap if identical # x86/ioperm: Remove bitmap if all permissions dropped # x86/ioperm: Move TSS bitmap update to exit to user work # x86/ioperm: Add bitmap sequence number # x86/ioperm: Move iobitmap data into a struct # x86/tss: Move I/O bitmap data into a seperate struct # x86/io: Speedup schedule out of I/O bitmap user # x86/ioperm: Avoid bitmap allocation if no permissions are set # x86/ioperm: Simplify first ioperm() invocation logic # x86/iopl: Cleanup include maze # x86/tss: Fix and move VMX BUILD_BUG_ON() # x86/cpu: Unify cpu_init() # ... # < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-ld --version # < git log --format=%s --max-count=1 ab851d49f6bfc781edd8bd44c72ec1e49211670b # < make -s -j 48 ARCH=arm O=/kisskb/build/linus_multi_v7_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi- multi_v7_defconfig # make -s -j 48 ARCH=arm O=/kisskb/build/linus_multi_v7_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi- /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/hda/hdac_regmap.c: In function 'hda_reg_write': /kisskb/src/sound/hda/hdac_regmap.c:284:16: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read': /kisskb/src/drivers/base/regmap/regmap.c:2591:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function '_regmap_raw_write': /kisskb/src/drivers/base/regmap/regmap.c:1852:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields': /kisskb/src/kernel/rcu/srcutree.c:140:32: warning: 'levelspread[]' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/rcu/srcutree.c:88:6: note: 'levelspread[]' was declared here /kisskb/src/fs/proc/inode.c: In function 'proc_reg_open': /kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c:338:21: note: 'pdeo' was declared here /kisskb/src/crypto/sha512_generic.c: In function 'sha512_transform': /kisskb/src/crypto/sha512_generic.c:149:1: warning: the frame size of 1184 bytes is larger than 1024 bytes [-Wframe-larger-than=] /kisskb/src/net/core/devlink.c: In function 'devlink_fmsg_prepare_skb': /kisskb/src/net/core/devlink.c:4613:6: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/mac80211/mlme.c: In function 'ieee80211_rx_mgmt_beacon': /kisskb/src/net/mac80211/mlme.c:1576:3: warning: 'pwr_level_cisco' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/mac80211/mlme.c:1533:6: note: 'pwr_level_cisco' was declared here /kisskb/src/drivers/clk/ti/clk.c: In function 'omap2_clk_for_each': /kisskb/src/drivers/clk/ti/clk.c:579:2: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/clk/sunxi-ng/ccu_mux.c: In function 'ccu_mux_helper_determine_rate': /kisskb/src/drivers/clk/sunxi-ng/ccu_mux.c:150:22: warning: 'best_parent' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c: In function 'sh_mobile_i2c_isr': /kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c:399:26: warning: 'data' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c:372:16: note: 'data' was declared here /kisskb/src/drivers/gpu/drm/sun4i/sun4i_tcon.c: In function 'sun4i_tcon_bind': /kisskb/src/drivers/gpu/drm/sun4i/sun4i_tcon.c:1178:35: warning: 'has_lvds_alt' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c: In function 'sun6i_dsi_encoder_enable': /kisskb/src/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c:721:8: warning: missing braces around initializer [-Wmissing-braces] /kisskb/src/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c:721:8: warning: (near initialization for 'opts.mipi_dphy') [-Wmissing-braces] /kisskb/src/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c: In function 'get_scale_config': /kisskb/src/drivers/gpu/drm/msm/disp/mdp5/mdp5.xml.h:1036:16: warning: 'uv_filter' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c:697:22: note: 'uv_filter' was declared here /kisskb/src/drivers/soc/qcom/wcnss_ctrl.c: In function 'wcnss_async_probe': /kisskb/src/drivers/soc/qcom/wcnss_ctrl.c:299:5: warning: 'expect_cbc' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/ethernet/marvell/mv643xx_eth.c: In function 'get_phy_mode': /kisskb/src/drivers/net/ethernet/marvell/mv643xx_eth.c:2971:20: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c: In function 'stmmac_open': /kisskb/src/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:1022:12: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:1012:6: note: 'ret' was declared here /kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c: In function 'gk104_top_oneinit': /kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c:104:1: warning: 'inst' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c:104:1: warning: 'type' may be used uninitialized in this function [-Wuninitialized] WARNING: "return_address" [vmlinux] is a static EXPORT_SYMBOL_GPL Completed OK # rm -rf /kisskb/build/linus_multi_v7_defconfig_arm # Build took: 0:02:52.544947