# git rev-parse -q --verify 9ede3728899d26f7bd67fd6b8830d58b9ac1a569^{commit} 9ede3728899d26f7bd67fd6b8830d58b9ac1a569 already have revision, skipping fetch # git checkout -q -f -B kisskb 9ede3728899d26f7bd67fd6b8830d58b9ac1a569 # git clean -qxdf # < git log -1 # commit 9ede3728899d26f7bd67fd6b8830d58b9ac1a569 # Author: Michael Ellerman # Date: Tue Jan 15 16:19:05 2019 +1100 # # powerpc/syscalls: Fix syscall tracing # # Recently in commit fbf508da7440 ("powerpc: split compat syscall table # out from native table") we change the layout of the system call table. # Instead of having two entries for each syscall number, one for the # regular entry point and one for the compat entry point, we now have # separate tables for regular and compat. # # This inadvertently broke syscall tracing (CONFIG_FTRACE_SYSCALLS), # because our implementation of arch_syscall_addr() knew about the # layout of the table (it did nr * 2). # # We can fix it just by dropping our version of arch_syscall_addr() and # using the generic version which does: # # return (unsigned long)sys_call_table[nr]; # # Fixes: fbf508da7440 ("powerpc: split compat syscall table out from native table") # Signed-off-by: Michael Ellerman # < /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 9ede3728899d26f7bd67fd6b8830d58b9ac1a569 # < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_83xx_kmeter1_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- 83xx/kmeter1_defconfig # make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_83xx_kmeter1_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields': /kisskb/src/kernel/rcu/srcutree.c:133:34: warning: 'levelspread[]' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/rcu/srcutree.c:100:6: 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:339:21: note: 'pdeo' was declared here /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:186:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/i2c/i2c-core-base.c: In function 'i2c_generic_scl_recovery': /kisskb/src/drivers/i2c/i2c-core-base.c:235:5: 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:247:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c:227:19: note: 'i' was declared here /kisskb/src/net/bridge/br_netlink.c: In function 'br_afspec.isra.35': /kisskb/src/net/bridge/br_netlink.c:652:7: warning: 'err' 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:1843:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c:1753:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized] INFO: Uncompressed kernel (size 0x4ded7c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x500000) Image Name: Linux-5.0.0-rc1-g9ede3728899d Created: Tue Jan 15 20:29:12 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2483756 Bytes = 2425.54 KiB = 2.37 MiB Load Address: 00000000 Entry Point: 00000000 Completed OK # rm -rf /kisskb/build/powerpc-fixes_83xx_kmeter1_defconfig_powerpc-gcc4.6 # Build took: 0:00:21.385868