# git rev-parse -q --verify 3909c5f6d66dd7a56899e1c7a0a65284a0d3423f^{commit}
3909c5f6d66dd7a56899e1c7a0a65284a0d3423f
already have revision, skipping fetch
# git checkout -q -f -B kisskb 3909c5f6d66dd7a56899e1c7a0a65284a0d3423f
# git clean -qxdf
# < git log -1
# commit 3909c5f6d66dd7a56899e1c7a0a65284a0d3423f
# Author: Ram Pai <linuxram@us.ibm.com>
# Date:   Tue Mar 27 02:09:28 2018 -0700
# 
#     mm, x86, powerpc: display pkey in smaps only if arch supports pkeys
#     
#     Currently the  architecture  specific code is expected to
#     display  the  protection  keys  in  smap  for a given vma.
#     This can lead to redundant code and possibly to divergent
#     formats in which the key gets displayed.
#     
#     This  patch  changes  the implementation. It displays the
#     pkey only if the architecture support pkeys, i.e
#     arch_pkeys_enabled() returns true.  This patch
#     provides x86 implementation for arch_pkeys_enabled().
#     
#     x86 arch_show_smap() function is not needed anymore.
#     Deleting it.
#     
#     cc: Michael Ellermen <mpe@ellerman.id.au>
#     cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
#     cc: Andrew Morton <akpm@linux-foundation.org>
#     Reviewed-by: Dave Hansen <dave.hansen@intel.com>
#     Signed-off-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
#     (fixed compilation errors for x86 configs)
#     Acked-by: Michal Hocko <mhocko@suse.com>
#     Reviewed-by: Ingo Molnar <mingo@kernel.org>
#     Signed-off-by: Ram Pai <linuxram@us.ibm.com>
#     [mpe: Don't remove include of asm/mmu_context.h from pkeys.h, to avoid
#           build errors on some configs.]
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-gcc --version
# < git log --format=%s --max-count=1 3909c5f6d66dd7a56899e1c7a0a65284a0d3423f
# < make -s -j 120 ARCH=i386 O=/kisskb/build/powerpc-next_i386_defconfig_i386 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-  i386_defconfig
# make -s -j 120 ARCH=i386 O=/kisskb/build/powerpc-next_i386_defconfig_i386 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-  
CONFIG_CC_STACKPROTECTOR_AUTO: -fstack-protector available but compiler is broken: disabling
/kisskb/src/arch/x86/kernel/e820.c: In function 'e820__setup_pci_gap':
/kisskb/src/arch/x86/kernel/e820.c:652:2: warning: 'gapstart' may be used uninitialized in this function [-Wuninitialized]
In file included from /kisskb/src/include/linux/pkeys.h:6:0,
                 from /kisskb/src/arch/x86/kernel/fpu/core.c:15:
/kisskb/src/arch/x86/include/asm/mmu_context.h: In function 'arch_vma_access_permitted':
/kisskb/src/arch/x86/include/asm/mmu_context.h:333:2: error: implicit declaration of function 'vma_pkey' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
/kisskb/src/scripts/Makefile.build:324: recipe for target 'arch/x86/kernel/fpu/core.o' failed
make[4]: *** [arch/x86/kernel/fpu/core.o] Error 1
make[4]: *** Waiting for unfinished jobs....
In file included from /kisskb/src/include/linux/pkeys.h:6:0,
                 from /kisskb/src/arch/x86/kernel/fpu/xstate.c:9:
/kisskb/src/arch/x86/include/asm/mmu_context.h: In function 'arch_vma_access_permitted':
/kisskb/src/arch/x86/include/asm/mmu_context.h:333:2: error: implicit declaration of function 'vma_pkey' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
/kisskb/src/scripts/Makefile.build:324: recipe for target 'arch/x86/kernel/fpu/xstate.o' failed
make[4]: *** [arch/x86/kernel/fpu/xstate.o] Error 1
/kisskb/src/scripts/Makefile.build:583: recipe for target 'arch/x86/kernel/fpu' failed
make[3]: *** [arch/x86/kernel/fpu] Error 2
make[3]: *** Waiting for unfinished jobs....
/kisskb/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields':
/kisskb/src/kernel/rcu/srcutree.c:146:32: warning: 'levelspread[<Ub780>]' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c:94:6: note: 'levelspread[<Ub780>]' was declared here
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/arch/x86/kernel/apic/io_apic.c: In function 'mp_map_pin_to_irq':
/kisskb/src/arch/x86/kernel/apic/io_apic.c:1033:6: warning: 'irq' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount':
/kisskb/src/kernel/cgroup/cgroup-v1.c:1268:20: warning: 'root' 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:282:16: warning: 'err' may be used uninitialized in this function [-Wuninitialized]
In file included from /kisskb/src/include/linux/pkeys.h:6:0,
                 from /kisskb/src/mm/mprotect.c:27:
/kisskb/src/arch/x86/include/asm/mmu_context.h: In function 'arch_vma_access_permitted':
/kisskb/src/arch/x86/include/asm/mmu_context.h:333:2: error: implicit declaration of function 'vma_pkey' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
/kisskb/src/scripts/Makefile.build:324: recipe for target 'mm/mprotect.o' failed
make[2]: *** [mm/mprotect.o] Error 1
make[2]: *** Waiting for unfinished jobs....
In file included from /kisskb/src/include/linux/pkeys.h:6:0,
                 from /kisskb/src/mm/mmap.c:46:
/kisskb/src/arch/x86/include/asm/mmu_context.h: In function 'arch_vma_access_permitted':
/kisskb/src/arch/x86/include/asm/mmu_context.h:333:2: error: implicit declaration of function 'vma_pkey' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
/kisskb/src/scripts/Makefile.build:324: recipe for target 'mm/mmap.o' failed
make[2]: *** [mm/mmap.o] Error 1
/kisskb/src/Makefile:1051: recipe for target 'mm' failed
make[1]: *** [mm] Error 2
make[1]: *** Waiting for unfinished jobs....
/kisskb/src/drivers/dma-buf/reservation.c: In function 'reservation_object_add_shared_fence':
/kisskb/src/drivers/dma-buf/reservation.c:207:2: warning: 'k' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/dma-buf/reservation.c:160:17: note: 'k' was declared here
In file included from /kisskb/src/include/linux/pkeys.h:6:0,
                 from /kisskb/src/fs/proc/task_mmu.c:21:
/kisskb/src/arch/x86/include/asm/mmu_context.h: In function 'arch_vma_access_permitted':
/kisskb/src/arch/x86/include/asm/mmu_context.h:333:2: error: implicit declaration of function 'vma_pkey' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
/kisskb/src/scripts/Makefile.build:324: recipe for target 'fs/proc/task_mmu.o' failed
make[3]: *** [fs/proc/task_mmu.o] Error 1
make[3]: *** Waiting for unfinished jobs....
/kisskb/src/scripts/Makefile.build:583: recipe for target 'fs/proc' failed
make[2]: *** [fs/proc] Error 2
make[2]: *** Waiting for unfinished jobs....
/kisskb/src/net/mac80211/mlme.c: In function 'ieee80211_rx_mgmt_beacon':
/kisskb/src/net/mac80211/mlme.c:1350:3: warning: 'pwr_level_cisco' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/mac80211/mlme.c:1307:6: note: 'pwr_level_cisco' was declared here
/kisskb/src/scripts/Makefile.build:583: recipe for target 'arch/x86/kernel' failed
make[2]: *** [arch/x86/kernel] Error 2
/kisskb/src/Makefile:1051: recipe for target 'arch/x86' failed
make[1]: *** [arch/x86] Error 2
/kisskb/src/Makefile:1051: recipe for target 'fs' failed
make[1]: *** [fs] Error 2
Makefile:146: recipe for target 'sub-make' failed
make: *** [sub-make] Error 2
Command 'make -s -j 120 ARCH=i386 O=/kisskb/build/powerpc-next_i386_defconfig_i386 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/powerpc-next_i386_defconfig_i386
# Build took: 0:00:40.945147