Buildresult: powerpc-fixes/85xx/ge_imp3a_defconfig/powerpc-gcc4.6 built on Jun 18 2019, 23:46

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Status:	OK
Date/Time:	Jun 18 2019, 23:46
Duration:	0:00:32.418995
Builder:	ka4
Revision:	KVM: PPC: Book3S HV: Only write DAWR[X] when handling h_set_dawr in real mode (`84b028243ef07a3f65c1857343ada2b1022f8bed)`
Target:	powerpc-fixes/85xx/ge_imp3a_defconfig/powerpc-gcc4.6
Branch:	powerpc-fixes
Compiler:	powerpc-gcc4.6 (powerpc-linux-gcc (GCC) 4.6.3 / GNU ld (GNU Binutils) 2.22)
Config:	85xx/ge_imp3a_defconfig (download)
Log:	Download original Possible warnings (10) kernel/rcu/srcutree.c:140:32: warning: 'levelspread[<U66e0>]' may be used uninitialized in this function [-Wuninitialized] kernel/printk/printk.c:194:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] fs/nfsd/nfs4xdr.c:2077:9: warning: 'str' may be used uninitialized in this function [-Wuninitialized] fs/udf/unicode.c:132:8: warning: 'c' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap.c:2589:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap.c:1850:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] drivers/tty/serial/8250/8250_core.c:247:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] drivers/net/tun.c:1851:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] drivers/net/tun.c:1764:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized] Full Log # git rev-parse -q --verify 84b028243ef07a3f65c1857343ada2b1022f8bed^{commit} 84b028243ef07a3f65c1857343ada2b1022f8bed already have revision, skipping fetch # git checkout -q -f -B kisskb 84b028243ef07a3f65c1857343ada2b1022f8bed # git clean -qxdf # < git log -1 # commit 84b028243ef07a3f65c1857343ada2b1022f8bed # Author: Suraj Jitindar Singh <sjitindarsingh@gmail.com> # Date: Mon Jun 17 17:16:19 2019 +1000 # # KVM: PPC: Book3S HV: Only write DAWR[X] when handling h_set_dawr in real mode # # The hcall H_SET_DAWR is used by a guest to set the data address # watchpoint register (DAWR). This hcall is handled in the host in # kvmppc_h_set_dawr() which can be called in either real mode on the # guest exit path from hcall_try_real_mode() in book3s_hv_rmhandlers.S, # or in virtual mode when called from kvmppc_pseries_do_hcall() in # book3s_hv.c. # # The function kvmppc_h_set_dawr() updates the dawr and dawrx fields in # the vcpu struct accordingly and then also writes the respective values # into the DAWR and DAWRX registers directly. It is necessary to write # the registers directly here when calling the function in real mode # since the path to re-enter the guest won't do this. However when in # virtual mode the host DAWR and DAWRX values have already been # restored, and so writing the registers would overwrite these. # Additionally there is no reason to write the guest values here as # these will be read from the vcpu struct and written to the registers # appropriately the next time the vcpu is run. # # This also avoids the case when handling h_set_dawr for a nested guest # where the guest hypervisor isn't able to write the DAWR and DAWRX # registers directly and must rely on the real hypervisor to do this for # it when it calls H_ENTER_NESTED. # # Fixes: c1fe190c0672 ("powerpc: Add force enable of DAWR on P9 option") # Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # < /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 84b028243ef07a3f65c1857343ada2b1022f8bed # < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_85xx_ge_imp3a_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- 85xx/ge_imp3a_defconfig # make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_85xx_ge_imp3a_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:140:32: warning: 'levelspread[<U66e0>]' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/rcu/srcutree.c:88:6: note: 'levelspread[<U66e0>]' was declared here /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:194:16: 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:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c:331:21: note: 'pdeo' was declared here /kisskb/src/fs/nfsd/nfs4xdr.c: In function 'nfsd4_encode_components_esc': /kisskb/src/fs/nfsd/nfs4xdr.c:2077:9: warning: 'str' 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/base/regmap/regmap.c: In function 'regmap_raw_read': /kisskb/src/drivers/base/regmap/regmap.c:2589:6: 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:1850:6: 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/drivers/net/tun.c: In function 'tun_get_user': /kisskb/src/drivers/net/tun.c:1851:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c:1764:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized] INFO: Uncompressed kernel (size 0x84c25c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x900000) Image Name: Linux-5.2.0-rc2-g84b028243ef0 Created: Tue Jun 18 23:47:21 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4259559 Bytes = 4159.73 KiB = 4.06 MiB Load Address: 00000000 Entry Point: 00000000 Completed OK # rm -rf /kisskb/build/powerpc-fixes_85xx_ge_imp3a_defconfig_powerpc-gcc4.6 # Build took: 0:00:32.418995

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