# git rev-parse -q --verify fedb8da96355f5f64353625bf96dc69423ad1826^{commit}
fedb8da96355f5f64353625bf96dc69423ad1826
already have revision, skipping fetch
# git checkout -q -f -B kisskb fedb8da96355f5f64353625bf96dc69423ad1826
# git clean -qxdf
# < git log -1
# commit fedb8da96355f5f64353625bf96dc69423ad1826
# Author: John David Anglin <dave.anglin@bell.net>
# Date:   Sun Aug 5 13:30:31 2018 -0400
# 
#     parisc: Define mb() and add memory barriers to assembler unlock sequences
#     
#     For years I thought all parisc machines executed loads and stores in
#     order. However, Jeff Law recently indicated on gcc-patches that this is
#     not correct. There are various degrees of out-of-order execution all the
#     way back to the PA7xxx processor series (hit-under-miss). The PA8xxx
#     series has full out-of-order execution for both integer operations, and
#     loads and stores.
#     
#     This is described in the following article:
#     http://web.archive.org/web/20040214092531/http://www.cpus.hp.com/technical_references/advperf.shtml
#     
#     For this reason, we need to define mb() and to insert a memory barrier
#     before the store unlocking spinlocks. This ensures that all memory
#     accesses are complete prior to unlocking. The ldcw instruction performs
#     the same function on entry.
#     
#     Signed-off-by: John David Anglin <dave.anglin@bell.net>
#     Cc: stable@vger.kernel.org # 4.0+
#     Signed-off-by: Helge Deller <deller@gmx.de>
# < /opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-gcc --version
# < git log --format=%s --max-count=1 fedb8da96355f5f64353625bf96dc69423ad1826
# < make -s -j 48 ARCH=xtensa O=/kisskb/build/linus_xtensa-allmodconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-  allmodconfig
drivers/staging/mt7621-dts/Kconfig:4:warning: 'BUILTIN_DTB' has wrong type. 'select' only accept arguments of bool and tristate type
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# Added to kconfig CONFIG_SAMPLES=n
# yes \n | make -s -j 48 ARCH=xtensa O=/kisskb/build/linus_xtensa-allmodconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-  oldconfig
yes: standard output: Broken pipe
yes: write error
# make -s -j 48 ARCH=xtensa O=/kisskb/build/linus_xtensa-allmodconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-  
drivers/staging/mt7621-dts/Kconfig:4:warning: 'BUILTIN_DTB' has wrong type. 'select' only accept arguments of bool and tristate type
<stdin>:1332:2: warning: #warning syscall io_pgetevents not implemented [-Wcpp]
<stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp]
/kisskb/src/arch/xtensa/kernel/pci.c:45:32: warning: 'pci_ctrl_tail' defined but not used [-Wunused-variable]
 static struct pci_controller **pci_ctrl_tail = &pci_ctrl_head;
                                ^
/kisskb/src/lib/test_kasan.c: In function 'use_after_scope_test':
/kisskb/src/lib/test_kasan.c:504:1: warning: the frame size of 1040 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 }
 ^
/kisskb/src/drivers/char/tpm/tpm2-cmd.c: In function 'tpm2_unseal_trusted':
/kisskb/src/drivers/char/tpm/tpm2-cmd.c:730:2: warning: 'blob_handle' may be used uninitialized in this function [-Wmaybe-uninitialized]
  tpm2_flush_context_cmd(chip, blob_handle, TPM_TRANSMIT_UNLOCKED);
  ^
/kisskb/src/drivers/input/joystick/analog.c:176:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp]
 #warning Precise timer not defined for this architecture.
  ^
In file included from /kisskb/src/arch/xtensa/include/asm/atomic.h:21:0,
                 from /kisskb/src/include/linux/atomic.h:5,
                 from /kisskb/src/include/linux/debug_locks.h:6,
                 from /kisskb/src/include/linux/lockdep.h:28,
                 from /kisskb/src/include/linux/spinlock_types.h:18,
                 from /kisskb/src/include/linux/spinlock.h:82,
                 from /kisskb/src/include/linux/wait.h:9,
                 from /kisskb/src/include/linux/wait_bit.h:8,
                 from /kisskb/src/include/linux/fs.h:6,
                 from /kisskb/src/fs/ocfs2/file.c:27:
/kisskb/src/fs/ocfs2/file.c: In function 'ocfs2_file_write_iter':
/kisskb/src/arch/xtensa/include/asm/cmpxchg.h:139:3: warning: value computed is not used [-Wunused-value]
  ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
   ^
/kisskb/src/fs/ocfs2/file.c:2386:3: note: in expansion of macro 'xchg'
   xchg(&iocb->ki_complete, saved_ki_complete);
   ^
/kisskb/src/drivers/net/usb/rtl8150.c:30:0: warning: "RSR" redefined
 #define RSR   0x0133
 ^
In file included from /kisskb/src/arch/xtensa/include/asm/bitops.h:22:0,
                 from /kisskb/src/include/linux/bitops.h:38,
                 from /kisskb/src/include/linux/kernel.h:11,
                 from /kisskb/src/include/asm-generic/bug.h:18,
                 from ./arch/xtensa/include/generated/asm/bug.h:1,
                 from /kisskb/src/include/linux/bug.h:5,
                 from /kisskb/src/include/linux/signal.h:5,
                 from /kisskb/src/drivers/net/usb/rtl8150.c:9:
/kisskb/src/arch/xtensa/include/asm/processor.h:221:0: note: this is the location of the previous definition
 #define RSR(v,sr) __asm__ __volatile__ ("rsr %0,"__stringify(sr) : "=a"(v));
 ^
In file included from /kisskb/src/drivers/scsi/sym53c8xx_2/sym_glue.h:64:0,
                 from /kisskb/src/drivers/scsi/sym53c8xx_2/sym_fw.c:40:
/kisskb/src/drivers/scsi/sym53c8xx_2/sym_defs.h:109:0: warning: "WSR" redefined
  #define   WSR     0x01  /* sta: wide scsi received       [W]*/
 ^
In file included from /kisskb/src/arch/xtensa/include/asm/bitops.h:22:0,
                 from /kisskb/src/include/linux/bitops.h:38,
                 from /kisskb/src/include/linux/kernel.h:11,
                 from /kisskb/src/include/linux/list.h:9,
                 from /kisskb/src/include/linux/wait.h:7,
                 from /kisskb/src/include/linux/completion.h:12,
                 from /kisskb/src/drivers/scsi/sym53c8xx_2/sym_glue.h:43,
                 from /kisskb/src/drivers/scsi/sym53c8xx_2/sym_fw.c:40:
/kisskb/src/arch/xtensa/include/asm/processor.h:220:0: note: this is the location of the previous definition
 #define WSR(v,sr) __asm__ __volatile__ ("wsr %0,"__stringify(sr) :: "a"(v));
 ^
In file included from /kisskb/src/drivers/scsi/sym53c8xx_2/sym_glue.h:64:0,
                 from /kisskb/src/drivers/scsi/sym53c8xx_2/sym_glue.c:50:
/kisskb/src/drivers/scsi/sym53c8xx_2/sym_defs.h:109:0: warning: "WSR" redefined
  #define   WSR     0x01  /* sta: wide scsi received       [W]*/
 ^
In file included from /kisskb/src/arch/xtensa/include/asm/bitops.h:22:0,
                 from /kisskb/src/include/linux/bitops.h:38,
                 from /kisskb/src/include/linux/kernel.h:11,
                 from /kisskb/src/include/linux/list.h:9,
                 from /kisskb/src/include/linux/module.h:9,
                 from /kisskb/src/drivers/scsi/sym53c8xx_2/sym_glue.c:42:
/kisskb/src/arch/xtensa/include/asm/processor.h:220:0: note: this is the location of the previous definition
 #define WSR(v,sr) __asm__ __volatile__ ("wsr %0,"__stringify(sr) :: "a"(v));
 ^
In file included from /kisskb/src/drivers/scsi/sym53c8xx_2/sym_glue.h:64:0,
                 from /kisskb/src/drivers/scsi/sym53c8xx_2/sym_hipd.c:44:
/kisskb/src/drivers/scsi/sym53c8xx_2/sym_defs.h:109:0: warning: "WSR" redefined
  #define   WSR     0x01  /* sta: wide scsi received       [W]*/
 ^
In file included from /kisskb/src/arch/xtensa/include/asm/bitops.h:22:0,
                 from /kisskb/src/include/linux/bitops.h:38,
                 from /kisskb/src/include/linux/kernel.h:11,
                 from /kisskb/src/include/asm-generic/bug.h:18,
                 from ./arch/xtensa/include/generated/asm/bug.h:1,
                 from /kisskb/src/include/linux/bug.h:5,
                 from /kisskb/src/include/linux/mmdebug.h:5,
                 from /kisskb/src/include/linux/gfp.h:5,
                 from /kisskb/src/include/linux/slab.h:15,
                 from /kisskb/src/drivers/scsi/sym53c8xx_2/sym_hipd.c:41:
/kisskb/src/arch/xtensa/include/asm/processor.h:220:0: note: this is the location of the previous definition
 #define WSR(v,sr) __asm__ __volatile__ ("wsr %0,"__stringify(sr) :: "a"(v));
 ^
In file included from /kisskb/src/drivers/scsi/sym53c8xx_2/sym_glue.h:64:0,
                 from /kisskb/src/drivers/scsi/sym53c8xx_2/sym_malloc.c:40:
/kisskb/src/drivers/scsi/sym53c8xx_2/sym_defs.h:109:0: warning: "WSR" redefined
  #define   WSR     0x01  /* sta: wide scsi received       [W]*/
 ^
In file included from /kisskb/src/arch/xtensa/include/asm/bitops.h:22:0,
                 from /kisskb/src/include/linux/bitops.h:38,
                 from /kisskb/src/include/linux/kernel.h:11,
                 from /kisskb/src/include/linux/list.h:9,
                 from /kisskb/src/include/linux/wait.h:7,
                 from /kisskb/src/include/linux/completion.h:12,
                 from /kisskb/src/drivers/scsi/sym53c8xx_2/sym_glue.h:43,
                 from /kisskb/src/drivers/scsi/sym53c8xx_2/sym_malloc.c:40:
/kisskb/src/arch/xtensa/include/asm/processor.h:220:0: note: this is the location of the previous definition
 #define WSR(v,sr) __asm__ __volatile__ ("wsr %0,"__stringify(sr) :: "a"(v));
 ^
In file included from /kisskb/src/drivers/scsi/sym53c8xx_2/sym_glue.h:64:0,
                 from /kisskb/src/drivers/scsi/sym53c8xx_2/sym_nvram.c:40:
/kisskb/src/drivers/scsi/sym53c8xx_2/sym_defs.h:109:0: warning: "WSR" redefined
  #define   WSR     0x01  /* sta: wide scsi received       [W]*/
 ^
In file included from /kisskb/src/arch/xtensa/include/asm/bitops.h:22:0,
                 from /kisskb/src/include/linux/bitops.h:38,
                 from /kisskb/src/include/linux/kernel.h:11,
                 from /kisskb/src/include/linux/list.h:9,
                 from /kisskb/src/include/linux/wait.h:7,
                 from /kisskb/src/include/linux/completion.h:12,
                 from /kisskb/src/drivers/scsi/sym53c8xx_2/sym_glue.h:43,
                 from /kisskb/src/drivers/scsi/sym53c8xx_2/sym_nvram.c:40:
/kisskb/src/arch/xtensa/include/asm/processor.h:220:0: note: this is the location of the previous definition
 #define WSR(v,sr) __asm__ __volatile__ ("wsr %0,"__stringify(sr) :: "a"(v));
 ^
/kisskb/src/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c:306:12: warning: 'stmmac_pci_suspend' defined but not used [-Wunused-function]
 static int stmmac_pci_suspend(struct device *dev)
            ^
/kisskb/src/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c:324:12: warning: 'stmmac_pci_resume' defined but not used [-Wunused-function]
 static int stmmac_pci_resume(struct device *dev)
            ^
In file included from /kisskb/src/arch/xtensa/include/asm/atomic.h:21:0,
                 from /kisskb/src/include/linux/atomic.h:5,
                 from /kisskb/src/include/linux/debug_locks.h:6,
                 from /kisskb/src/include/linux/lockdep.h:28,
                 from /kisskb/src/include/linux/spinlock_types.h:18,
                 from /kisskb/src/include/linux/spinlock.h:82,
                 from /kisskb/src/include/linux/seqlock.h:36,
                 from /kisskb/src/include/linux/time.h:6,
                 from /kisskb/src/include/linux/stat.h:19,
                 from /kisskb/src/include/linux/module.h:10,
                 from /kisskb/src/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c:12:
/kisskb/src/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c: In function 'ixgbevf_xdp_setup':
/kisskb/src/arch/xtensa/include/asm/cmpxchg.h:139:3: warning: value computed is not used [-Wunused-value]
  ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
   ^
/kisskb/src/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c:4448:4: note: in expansion of macro 'xchg'
    xchg(&adapter->rx_ring[i]->xdp_prog, adapter->xdp_prog);
    ^
./usr/include/asm/setup.h:17: userspace cannot reference function or variable defined in the kernel
Completed OK
# rm -rf /kisskb/build/linus_xtensa-allmodconfig_xtensa
# Build took: 0:10:51.396974