# git rev-parse -q --verify a45ea48e2bcd92c1f678b794f488ca0bda9835b8^{commit}
a45ea48e2bcd92c1f678b794f488ca0bda9835b8
already have revision, skipping fetch
# git checkout -q -f -B kisskb a45ea48e2bcd92c1f678b794f488ca0bda9835b8
# git clean -qxdf
# < git log -1
# commit a45ea48e2bcd92c1f678b794f488ca0bda9835b8
# Author: David Howells <dhowells@redhat.com>
# Date:   Sun Jan 26 01:02:53 2020 +0000
# 
#     afs: Fix characters allowed into cell names
#     
#     The afs filesystem needs to prohibit certain characters from cell names,
#     such as '/', as these are used to form filenames in procfs, leading to
#     the following warning being generated:
#     
#             WARNING: CPU: 0 PID: 3489 at fs/proc/generic.c:178
#     
#     Fix afs_alloc_cell() to disallow nonprintable characters, '/', '@' and
#     names that begin with a dot.
#     
#     Remove the check for "@cell" as that is then redundant.
#     
#     This can be tested by running:
#     
#             echo add foo/.bar 1.2.3.4 >/proc/fs/afs/cells
#     
#     Note that we will also need to deal with:
#     
#      - Names ending in ".invalid" shouldn't be passed to the DNS.
#     
#      - Names that contain non-valid domainname chars shouldn't be passed to
#        the DNS.
#     
#      - DNS replies that say "your-dns-needs-immediate-attention.<gTLD>" and
#        replies containing A records that say 127.0.53.53 should be
#        considered invalid.
#        [https://www.icann.org/en/system/files/files/name-collision-mitigation-01aug14-en.pdf]
#     
#     but these need to be dealt with by the kafs-client DNS program rather
#     than the kernel.
#     
#     Reported-by: syzbot+b904ba7c947a37b4b291@syzkaller.appspotmail.com
#     Cc: stable@kernel.org
#     Signed-off-by: David Howells <dhowells@redhat.com>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-gcc --version
# < /opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-ld --version
# < git log --format=%s --max-count=1 a45ea48e2bcd92c1f678b794f488ca0bda9835b8
# < make -s -j 32 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
# 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 32 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
# make -s -j 32 ARCH=xtensa O=/kisskb/build/linus_xtensa-allmodconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-  
In file included from /kisskb/src/arch/xtensa/include/asm/atomic.h:19:0,
                 from /kisskb/src/include/linux/atomic.h:7,
                 from /kisskb/src/include/asm-generic/bitops/atomic.h:5,
                 from /kisskb/src/arch/xtensa/include/asm/bitops.h:192,
                 from /kisskb/src/include/linux/bitops.h:26,
                 from /kisskb/src/include/linux/kernel.h:12,
                 from /kisskb/src/include/linux/list.h:9,
                 from /kisskb/src/include/linux/wait.h:7,
                 from /kisskb/src/include/linux/wait_bit.h:8,
                 from /kisskb/src/include/linux/fs.h:6,
                 from /kisskb/src/fs/ocfs2/file.c:13:
/kisskb/src/fs/ocfs2/file.c: In function 'ocfs2_file_write_iter':
/kisskb/src/arch/xtensa/include/asm/cmpxchg.h:173:3: warning: value computed is not used [-Wunused-value]
  ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
   ^
/kisskb/src/fs/ocfs2/file.c:2421:3: note: in expansion of macro 'xchg'
   xchg(&iocb->ki_complete, saved_ki_complete);
   ^
/kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c: In function 'sh_mobile_i2c_isr':
/kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c:399:26: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized]
   pd->msg->buf[real_pos] = data;
                          ^
/kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c:372:16: note: 'data' was declared here
  unsigned char data;
                ^
/kisskb/src/drivers/input/joystick/analog.c:160:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp]
 #warning Precise timer not defined for this architecture.
  ^
In file included from /kisskb/src/include/linux/wait.h:9:0,
                 from /kisskb/src/include/linux/net.h:19,
                 from /kisskb/src/drivers/infiniband/sw/siw/siw_qp_rx.c:8:
/kisskb/src/drivers/infiniband/sw/siw/siw_qp_rx.c: In function 'siw_proc_send':
/kisskb/src/include/linux/spinlock.h:288:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
   _raw_spin_unlock_irqrestore(lock, flags); \
   ^
/kisskb/src/drivers/infiniband/sw/siw/siw_qp_rx.c:335:16: note: 'flags' was declared here
  unsigned long flags;
                ^
In file included from /kisskb/src/drivers/net/phy/mdio-cavium.c:11:0:
/kisskb/src/drivers/net/phy/mdio-cavium.c: In function 'cavium_mdiobus_set_mode':
/kisskb/src/drivers/net/phy/mdio-cavium.h:114:37: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
 #define oct_mdio_readq(addr)  readq((void *)addr)
                                     ^
/kisskb/src/drivers/net/phy/mdio-cavium.c:21:16: note: in expansion of macro 'oct_mdio_readq'
  smi_clk.u64 = oct_mdio_readq(p->register_base + SMI_CLK);
                ^
/kisskb/src/drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
 #define oct_mdio_writeq(val, addr) writeq(val, (void *)addr)
                                                ^
/kisskb/src/drivers/net/phy/mdio-cavium.c:24:2: note: in expansion of macro 'oct_mdio_writeq'
  oct_mdio_writeq(smi_clk.u64, p->register_base + SMI_CLK);
  ^
/kisskb/src/drivers/net/phy/mdio-cavium.c: In function 'cavium_mdiobus_c45_addr':
/kisskb/src/drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
 #define oct_mdio_writeq(val, addr) writeq(val, (void *)addr)
                                                ^
/kisskb/src/drivers/net/phy/mdio-cavium.c:39:2: note: in expansion of macro 'oct_mdio_writeq'
  oct_mdio_writeq(smi_wr.u64, p->register_base + SMI_WR_DAT);
  ^
/kisskb/src/drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
 #define oct_mdio_writeq(val, addr) writeq(val, (void *)addr)
                                                ^
/kisskb/src/drivers/net/phy/mdio-cavium.c:47:2: note: in expansion of macro 'oct_mdio_writeq'
  oct_mdio_writeq(smi_cmd.u64, p->register_base + SMI_CMD);
  ^
/kisskb/src/drivers/net/phy/mdio-cavium.h:114:37: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
 #define oct_mdio_readq(addr)  readq((void *)addr)
                                     ^
/kisskb/src/drivers/net/phy/mdio-cavium.c:54:16: note: in expansion of macro 'oct_mdio_readq'
   smi_wr.u64 = oct_mdio_readq(p->register_base + SMI_WR_DAT);
                ^
/kisskb/src/drivers/net/phy/mdio-cavium.c: In function 'cavium_mdiobus_read':
/kisskb/src/drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
 #define oct_mdio_writeq(val, addr) writeq(val, (void *)addr)
                                                ^
/kisskb/src/drivers/net/phy/mdio-cavium.c:86:2: note: in expansion of macro 'oct_mdio_writeq'
  oct_mdio_writeq(smi_cmd.u64, p->register_base + SMI_CMD);
  ^
/kisskb/src/drivers/net/phy/mdio-cavium.h:114:37: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
 #define oct_mdio_readq(addr)  readq((void *)addr)
                                     ^
/kisskb/src/drivers/net/phy/mdio-cavium.c:93:16: note: in expansion of macro 'oct_mdio_readq'
   smi_rd.u64 = oct_mdio_readq(p->register_base + SMI_RD_DAT);
                ^
/kisskb/src/drivers/net/phy/mdio-cavium.c: In function 'cavium_mdiobus_write':
/kisskb/src/drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
 #define oct_mdio_writeq(val, addr) writeq(val, (void *)addr)
                                                ^
/kisskb/src/drivers/net/phy/mdio-cavium.c:125:2: note: in expansion of macro 'oct_mdio_writeq'
  oct_mdio_writeq(smi_wr.u64, p->register_base + SMI_WR_DAT);
  ^
/kisskb/src/drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
 #define oct_mdio_writeq(val, addr) writeq(val, (void *)addr)
                                                ^
/kisskb/src/drivers/net/phy/mdio-cavium.c:131:2: note: in expansion of macro 'oct_mdio_writeq'
  oct_mdio_writeq(smi_cmd.u64, p->register_base + SMI_CMD);
  ^
/kisskb/src/drivers/net/phy/mdio-cavium.h:114:37: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
 #define oct_mdio_readq(addr)  readq((void *)addr)
                                     ^
/kisskb/src/drivers/net/phy/mdio-cavium.c:138:16: note: in expansion of macro 'oct_mdio_readq'
   smi_wr.u64 = oct_mdio_readq(p->register_base + SMI_WR_DAT);
                ^
/kisskb/src/drivers/net/phy/mdio-octeon.c: In function 'octeon_mdiobus_probe':
/kisskb/src/drivers/net/phy/mdio-octeon.c:48:3: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
   (u64)devm_ioremap(&pdev->dev, mdio_phys, regsize);
   ^
In file included from /kisskb/src/drivers/net/phy/mdio-octeon.c:14:0:
/kisskb/src/drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
 #define oct_mdio_writeq(val, addr) writeq(val, (void *)addr)
                                                ^
/kisskb/src/drivers/net/phy/mdio-octeon.c:56:2: note: in expansion of macro 'oct_mdio_writeq'
  oct_mdio_writeq(smi_en.u64, bus->register_base + SMI_EN);
  ^
/kisskb/src/drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
 #define oct_mdio_writeq(val, addr) writeq(val, (void *)addr)
                                                ^
/kisskb/src/drivers/net/phy/mdio-octeon.c:77:2: note: in expansion of macro 'oct_mdio_writeq'
  oct_mdio_writeq(smi_en.u64, bus->register_base + SMI_EN);
  ^
/kisskb/src/drivers/net/phy/mdio-octeon.c: In function 'octeon_mdiobus_remove':
/kisskb/src/drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
 #define oct_mdio_writeq(val, addr) writeq(val, (void *)addr)
                                                ^
/kisskb/src/drivers/net/phy/mdio-octeon.c:91:2: note: in expansion of macro 'oct_mdio_writeq'
  oct_mdio_writeq(smi_en.u64, bus->register_base + SMI_EN);
  ^
In file included from /kisskb/src/include/linux/rwsem.h:16:0,
                 from /kisskb/src/include/linux/notifier.h:15,
                 from /kisskb/src/include/linux/clk.h:14,
                 from /kisskb/src/drivers/tty/serial/sh-sci.c:24:
/kisskb/src/drivers/tty/serial/sh-sci.c: In function 'sci_dma_rx_submit':
/kisskb/src/include/linux/spinlock.h:288:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
   _raw_spin_unlock_irqrestore(lock, flags); \
   ^
/kisskb/src/drivers/tty/serial/sh-sci.c:1352:16: note: 'flags' was declared here
  unsigned long flags;
                ^
In file included from /kisskb/src/include/linux/printk.h:7:0,
                 from /kisskb/src/include/linux/kernel.h:15,
                 from /kisskb/src/include/linux/mlx5/driver.h:36,
                 from /kisskb/src/drivers/net/ethernet/mellanox/mlx5/core/wq.c:33:
/kisskb/src/drivers/net/ethernet/mellanox/mlx5/core/wq.c: In function 'mlx5_wq_cyc_wqe_dump':
/kisskb/src/include/linux/kern_levels.h:5:18: warning: format '%ld' expects argument of type 'long int', but argument 5 has type 'size_t {aka unsigned int}' [-Wformat=]
 #define KERN_SOH "\001"  /* ASCII Start Of Header */
                  ^
/kisskb/src/include/linux/kern_levels.h:14:19: note: in expansion of macro 'KERN_SOH'
 #define KERN_INFO KERN_SOH "6" /* informational */
                   ^
/kisskb/src/include/linux/printk.h:310:9: note: in expansion of macro 'KERN_INFO'
  printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
         ^
/kisskb/src/drivers/net/ethernet/mellanox/mlx5/core/wq.c:92:2: note: in expansion of macro 'pr_info'
  pr_info("WQE DUMP: WQ size %d WQ cur size %d, WQE index 0x%x, len: %ld\n",
  ^
/kisskb/src/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c: In function 'mlx5e_grp_sw_update_stats':
/kisskb/src/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c:302:1: warning: the frame size of 1232 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 }
 ^
In file included from /kisskb/src/arch/xtensa/include/asm/atomic.h:19:0,
                 from /kisskb/src/include/linux/atomic.h:7,
                 from /kisskb/src/include/asm-generic/bitops/atomic.h:5,
                 from /kisskb/src/arch/xtensa/include/asm/bitops.h:192,
                 from /kisskb/src/include/linux/bitops.h:26,
                 from /kisskb/src/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c:11:
/kisskb/src/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c: In function 'ixgbevf_xdp_setup':
/kisskb/src/arch/xtensa/include/asm/cmpxchg.h:173:3: 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:4477:4: note: in expansion of macro 'xchg'
    xchg(&adapter->rx_ring[i]->xdp_prog, adapter->xdp_prog);
    ^
WARNING: lib/test_bitmap.o(.text.unlikely+0x58): Section mismatch in reference from the function bitmap_equal() to the variable .init.rodata:clump_exp
The function bitmap_equal() references
the variable __initconst clump_exp.
This is often because bitmap_equal lacks a __initconst 
annotation or the annotation of clump_exp is wrong.

Completed OK
# rm -rf /kisskb/build/linus_xtensa-allmodconfig_xtensa
# Build took: 0:14:57.024278