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Subject[PATCH 00/28] Reenable maybe-uninitialized warnings
Date
This is a set of patches that I hope to get into v4.9 in some form
in order to turn on the -Wmaybe-uninitialized warnings again.

After talking to Linus in person at Linaro Connect about this, I
spent some time on finding all the remaining warnings, and this
is the resulting patch series. More details are in the description
of the last patch that actually enables the warning.

Let me know if there are other warnings that I missed, and whether
you think these are still appropriate for v4.9 or not.
A couple of patches are non-obvious, and could use some more
detailed review.

Arnd

Arnd Bergmann (28):
[v2] netfilter: nf_tables: avoid uninitialized variable warning
[v2] mtd: mtk: avoid warning in mtk_ecc_encode
[v2] infiniband: shut up a maybe-uninitialized warning
f2fs: replace a build-time warning with runtime WARN_ON
ext2: avoid bogus -Wmaybe-uninitialized warning
NFSv4.1: work around -Wmaybe-uninitialized warning
ceph: avoid false positive maybe-uninitialized warning
staging: lustre: restore initialization of return code
staging: lustre: remove broken dead code in
cfs_cpt_table_create_pattern
UBI: fix uninitialized access of vid_hdr pointer
block: rdb: false-postive gcc-4.9 -Wmaybe-uninitialized
[media] rc: print correct variable for z8f0811
[media] dib0700: fix uninitialized data on 'repeat' event
iio: accel: sca3000_core: avoid potentially uninitialized variable
crypto: aesni: avoid -Wmaybe-uninitialized warning
pcmcia: fix return value of soc_pcmcia_regulator_set
spi: fsl-espi: avoid processing uninitalized data on error
drm: avoid uninitialized timestamp use in wait_vblank
brcmfmac: avoid maybe-uninitialized warning in brcmf_cfg80211_start_ap
net: bcm63xx: avoid referencing uninitialized variable
net/hyperv: avoid uninitialized variable
x86: apm: avoid uninitialized data
x86: mark target address as output in 'insb' asm
x86: math-emu: possible uninitialized variable use
s390: pci: don't print uninitialized data for debugging
nios2: fix timer initcall return value
rocker: fix maybe-uninitialized warning
Kbuild: bring back -Wmaybe-uninitialized warning

Makefile | 10 +-
arch/arc/Makefile | 4 +-
arch/nios2/kernel/time.c | 1 +
arch/s390/pci/pci_dma.c | 2 +-
arch/x86/crypto/aesni-intel_glue.c | 121 +++++++++++++--------
arch/x86/include/asm/io.h | 4 +-
arch/x86/kernel/apm_32.c | 5 +-
arch/x86/math-emu/Makefile | 4 +-
arch/x86/math-emu/reg_compare.c | 16 +--
drivers/block/rbd.c | 1 +
drivers/gpu/drm/drm_irq.c | 4 +-
drivers/infiniband/core/cma.c | 56 +++++-----
drivers/media/i2c/ir-kbd-i2c.c | 2 +-
drivers/media/usb/dvb-usb/dib0700_core.c | 10 +-
drivers/mtd/nand/mtk_ecc.c | 19 ++--
drivers/mtd/ubi/eba.c | 2 +-
drivers/net/ethernet/broadcom/bcm63xx_enet.c | 3 +-
drivers/net/ethernet/rocker/rocker_ofdpa.c | 4 +-
drivers/net/hyperv/netvsc_drv.c | 2 +-
.../broadcom/brcm80211/brcmfmac/cfg80211.c | 2 +-
drivers/pcmcia/soc_common.c | 2 +-
drivers/spi/spi-fsl-espi.c | 2 +-
drivers/staging/iio/accel/sca3000_core.c | 2 +
.../staging/lustre/lnet/libcfs/linux/linux-cpu.c | 7 --
drivers/staging/lustre/lustre/lov/lov_pack.c | 2 +
fs/ceph/super.c | 3 +-
fs/ext2/inode.c | 7 +-
fs/f2fs/data.c | 7 ++
fs/nfs/nfs4session.c | 10 +-
net/netfilter/nft_range.c | 10 +-
scripts/Makefile.ubsan | 4 +
31 files changed, 187 insertions(+), 141 deletions(-)

--
Cc: x86@kernel.org
Cc: linux-media@vger.kernel.org
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: linux-s390@vger.kernel.org
Cc: Ilya Dryomov <idryomov@gmail.com>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-mtd@lists.infradead.org
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: linux-crypto@vger.kernel.org
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: ceph-devel@vger.kernel.org
Cc: linux-f2fs-devel@lists.sourceforge.net
Cc: linux-ext4@vger.kernel.org
Cc: netfilter-devel@vger.kernel.org
2.9.0

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