Buildresult: linus/xtensa-allmodconfig/xtensa-gcc8 built on Feb 26 2020, 01:59

kisskb

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Status:	OK
Date/Time:	Feb 26 2020, 01:59
Duration:	0:12:51.754312
Builder:	ka3
Revision:	floppy: check FDC index for errors before assigning it (`2e90ca68b0d2f5548804f22f0dd61145516171e3)`
Target:	linus/xtensa-allmodconfig/xtensa-gcc8
Branch:	linus
Compiler:	xtensa-gcc8 (xtensa-linux-gcc.br_real (Buildroot 2016.11-git-00613-ge98b4dd) 5.4.0 / GNU ld (GNU Binutils) 2.26.1)
Config:	allmodconfig (download)
Log:	Download original Possible warnings (25) include/linux/spinlock.h:288:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized] drivers/net/phy/mdio-cavium.h:114:37: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] drivers/net/phy/mdio-cavium.h:114:37: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] drivers/net/phy/mdio-cavium.h:114:37: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] drivers/net/phy/mdio-cavium.h:114:37: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] arch/xtensa/include/asm/cmpxchg.h:173:3: warning: value computed is not used [-Wunused-value] drivers/net/phy/mdio-octeon.c:48:3: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 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. drivers/i2c/busses/i2c-sh_mobile.c:399:26: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized] arch/xtensa/include/asm/cmpxchg.h:173:3: warning: value computed is not used [-Wunused-value] drivers/net/wireless/realtek/rtw88/pci.c:1291:12: warning: 'rtw_pci_suspend' defined but not used [-Wunused-function] drivers/net/wireless/realtek/rtw88/pci.c:1296:12: warning: 'rtw_pci_resume' defined but not used [-Wunused-function] include/linux/spinlock.h:288:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized] arch/xtensa/include/asm/cmpxchg.h:173:3: warning: value computed is not used [-Wunused-value] WARNING: lib/test_bitmap.o(.text.unlikely+0x58): Section mismatch in reference from the function bitmap_equal() to the variable .init.rodata:clump_exp Full Log # git rev-parse -q --verify 2e90ca68b0d2f5548804f22f0dd61145516171e3^{commit} 2e90ca68b0d2f5548804f22f0dd61145516171e3 already have revision, skipping fetch # git checkout -q -f -B kisskb 2e90ca68b0d2f5548804f22f0dd61145516171e3 # git clean -qxdf # < git log -1 # commit 2e90ca68b0d2f5548804f22f0dd61145516171e3 # Author: Linus Torvalds <torvalds@linux-foundation.org> # Date: Fri Feb 21 12:43:35 2020 -0800 # # floppy: check FDC index for errors before assigning it # # Jordy Zomer reported a KASAN out-of-bounds read in the floppy driver in # wait_til_ready(). # # Which on the face of it can't happen, since as Willy Tarreau points out, # the function does no particular memory access. Except through the FDCS # macro, which just indexes a static allocation through teh current fdc, # which is always checked against N_FDC. # # Except the checking happens after we've already assigned the value. # # The floppy driver is a disgrace (a lot of it going back to my original # horrd "design"), and has no real maintainer. Nobody has the hardware, # and nobody really cares. But it still gets used in virtual environment # because it's one of those things that everybody supports. # # The whole thing should be re-written, or at least parts of it should be # seriously cleaned up. The 'current fdc' index, which is used by the # FDCS macro, and which is often shadowed by a local 'fdc' variable, is a # prime example of how not to write code. # # But because nobody has the hardware or the motivation, let's just fix up # the immediate problem with a nasty band-aid: test the fdc index before # actually assigning it to the static 'fdc' variable. # # Reported-by: Jordy Zomer <jordy@simplyhacker.com> # Cc: Willy Tarreau <w@1wt.eu> # Cc: Dan Carpenter <dan.carpenter@oracle.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 2e90ca68b0d2f5548804f22f0dd61145516171e3 # < make -s -j 80 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 # < make -s -j 80 ARCH=xtensa O=/kisskb/build/linus_xtensa-allmodconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux- help # make -s -j 80 ARCH=xtensa O=/kisskb/build/linus_xtensa-allmodconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux- olddefconfig # make -s -j 80 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/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:20: /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:1348:16: 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); ^ 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:29, from /kisskb/src/include/linux/bitmap.h:8, from /kisskb/src/include/linux/ethtool.h:16, from /kisskb/src/drivers/net/ethernet/amazon/ena/ena_netdev.c:38: /kisskb/src/drivers/net/ethernet/amazon/ena/ena_netdev.c: In function 'ena_xdp_exchange_program_rx_in_range': /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/amazon/ena/ena_netdev.c:473:3: note: in expansion of macro 'xchg' xchg(&rx_ring->xdp_bpf_prog, prog); ^ /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); ^ /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. ^ /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; ^ 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:29, 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:2419:3: note: in expansion of macro 'xchg' xchg(&iocb->ki_complete, saved_ki_complete); ^ /kisskb/src/drivers/net/wireless/realtek/rtw88/pci.c:1291:12: warning: 'rtw_pci_suspend' defined but not used [-Wunused-function] static int rtw_pci_suspend(struct device dev) ^ /kisskb/src/drivers/net/wireless/realtek/rtw88/pci.c:1296:12: warning: 'rtw_pci_resume' defined but not used [-Wunused-function] static int rtw_pci_resume(struct device dev) ^ 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/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:29, 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: 0:12:51.754312

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