# git rev-parse -q --verify 031d94b0f4799478367ec10babdd755123142ed6^{commit} 031d94b0f4799478367ec10babdd755123142ed6 already have revision, skipping fetch # git checkout -q -f -B kisskb 031d94b0f4799478367ec10babdd755123142ed6 # git clean -qxdf # < git log -1 # commit 031d94b0f4799478367ec10babdd755123142ed6 # Author: Christophe Leroy # Date: Fri Jan 24 07:07:54 2020 +0000 # # powerpc/irq: Use current_stack_pointer in do_IRQ() # # Until commit 7306e83ccf5c ("powerpc: Don't use CURRENT_THREAD_INFO to # find the stack"), the current stack base address was obtained by # calling current_thread_info(). That inline function was simply masking # out the value of r1. # # In that commit, it was changed to using current_stack_pointer() (since # renamed current_stack_frame()), which is a heavier function as it is # an outline assembly function which cannot be inlined and which reads # the content of the stack at 0(r1). # # Convert to using current_stack_pointer for geting r1 and masking out # its value to obtain the base address of the stack pointer as before. # # Fixes: 7306e83ccf5c ("powerpc: Don't use CURRENT_THREAD_INFO to find the stack") # Signed-off-by: Christophe Leroy # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/a37e699e7ab897742c07b6838a08af33bc9217e3.1579849665.git.christophe.leroy@c-s.fr # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld --version # < git log --format=%s --max-count=1 031d94b0f4799478367ec10babdd755123142ed6 # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc6xx_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- ppc6xx_defconfig # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc6xx_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /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/fs/proc/inode.c: In function 'proc_reg_open': /kisskb/src/include/linux/list.h:72:12: 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/fs/ext4/extents.c: In function 'ext4_convert_unwritten_io_end_vec': /kisskb/src/fs/ext4/extents.c:5009:23: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq': /kisskb/src/drivers/tty/serial/8250/8250_core.c:248:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c:228:19: note: 'i' was declared here /kisskb/src/kernel/trace/trace_events.c: In function 'event_create_dir': /kisskb/src/kernel/trace/trace_events.c:2040:6: warning: 'ret' 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:2598:6: 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:1859:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/gfs2/lops.c: In function 'gfs2_find_jhead': /kisskb/src/fs/gfs2/lops.c:564:8: warning: 'off' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/nfsd/nfs4xdr.c: In function 'nfsd4_encode_components_esc': /kisskb/src/fs/nfsd/nfs4xdr.c:2151:9: warning: 'str' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/ppc/awacs.c: In function 'snd_pmac_awacs_init': /kisskb/src/include/sound/control.h:218:2: warning: 'speaker_vol' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/ppc/awacs.c:873:36: note: 'speaker_vol' was declared here /kisskb/src/drivers/usb/core/devio.c: In function 'async_completed': /kisskb/src/drivers/usb/core/devio.c:625:23: warning: 'errno' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/udf/unicode.c: In function 'udf_name_conv_char': /kisskb/src/fs/udf/unicode.c:132:8: warning: 'c' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c: In function 'tun_get_user': /kisskb/src/drivers/net/tun.c:1836:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c:1749:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/io_uring.c: In function '__io_sqe_files_update.isra.59': /kisskb/src/fs/io_uring.c:5824:13: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c: In function 'drm_dp_mst_dsc_aux_for_port': /kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c:5400:9: warning: missing braces around initializer [-Wmissing-braces] /kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c:5400:9: warning: (near initialization for 'desc.ident') [-Wmissing-braces] /kisskb/src/net/bridge/br_netlink.c: In function 'br_process_vlan_info': /kisskb/src/net/bridge/br_netlink.c:571:6: 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 INFO: Uncompressed kernel (size 0xa1a2a4) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa1a2a4) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa1a2a4) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa1a2a4) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa1a2a4) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa1a2a4) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa1a2a4) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa1a2a4) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa09bf0) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa1a2a4) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa09bf0) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa1a2a4) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) Image Name: Linux-5.6.0-rc2+ Created: Thu Feb 20 23:04:46 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4751918 Bytes = 4640.54 KiB = 4.53 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-5.6.0-rc2+ Created: Thu Feb 20 23:04:46 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4782711 Bytes = 4670.62 KiB = 4.56 MiB Load Address: 00b00000 Entry Point: 00b00290 Image Name: Linux-5.6.0-rc2+ Created: Thu Feb 20 23:04:46 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4782692 Bytes = 4670.60 KiB = 4.56 MiB Load Address: 00b00000 Entry Point: 00b00290 Image Name: Linux-5.6.0-rc2+ Created: Thu Feb 20 23:04:46 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4782727 Bytes = 4670.63 KiB = 4.56 MiB Load Address: 00b00000 Entry Point: 00b00290 Image Name: Linux-5.6.0-rc2+ Created: Thu Feb 20 23:04:46 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4782850 Bytes = 4670.75 KiB = 4.56 MiB Load Address: 00b00000 Entry Point: 00b00290 Image Name: Linux-5.6.0-rc2+ Created: Thu Feb 20 23:04:47 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4783204 Bytes = 4671.10 KiB = 4.56 MiB Load Address: 00b00000 Entry Point: 00b00888 Image Name: Linux-5.6.0-rc2+ Created: Thu Feb 20 23:04:47 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4782612 Bytes = 4670.52 KiB = 4.56 MiB Load Address: 00b00000 Entry Point: 00b00290 Image Name: Linux-5.6.0-rc2+ Created: Thu Feb 20 23:04:47 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4783520 Bytes = 4671.41 KiB = 4.56 MiB Load Address: 00b00000 Entry Point: 00b00888 Image Name: Linux-5.6.0-rc2+ Created: Thu Feb 20 23:04:47 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4783109 Bytes = 4671.00 KiB = 4.56 MiB Load Address: 00b00000 Entry Point: 00b00290 Completed OK # rm -rf /kisskb/build/powerpc-next_ppc6xx_defconfig_powerpc-gcc4.6 # Build took: 0:03:18.591288