linux_dsm_epyc7002/drivers/virtio
Kees Cook 3f649ab728 treewide: Remove uninitialized_var() usage
Using uninitialized_var() is dangerous as it papers over real bugs[1]
(or can in the future), and suppresses unrelated compiler warnings
(e.g. "unused variable"). If the compiler thinks it is uninitialized,
either simply initialize the variable or make compiler changes.

In preparation for removing[2] the[3] macro[4], remove all remaining
needless uses with the following script:

git grep '\buninitialized_var\b' | cut -d: -f1 | sort -u | \
	xargs perl -pi -e \
		's/\buninitialized_var\(([^\)]+)\)/\1/g;
		 s:\s*/\* (GCC be quiet|to make compiler happy) \*/$::g;'

drivers/video/fbdev/riva/riva_hw.c was manually tweaked to avoid
pathological white-space.

No outstanding warnings were found building allmodconfig with GCC 9.3.0
for x86_64, i386, arm64, arm, powerpc, powerpc64le, s390x, mips, sparc64,
alpha, and m68k.

[1] https://lore.kernel.org/lkml/20200603174714.192027-1-glider@google.com/
[2] https://lore.kernel.org/lkml/CA+55aFw+Vbj0i=1TGqCR5vQkCzWJ0QxK6CernOU6eedsudAixw@mail.gmail.com/
[3] https://lore.kernel.org/lkml/CA+55aFwgbgqhbp1fkxvRKEpzyR5J8n1vKT1VZdz9knmPuXhOeg@mail.gmail.com/
[4] https://lore.kernel.org/lkml/CA+55aFz2500WfbKXAx8s67wrm9=yVJu65TpLgN_ybYNv0VEOKA@mail.gmail.com/

Reviewed-by: Leon Romanovsky <leonro@mellanox.com> # drivers/infiniband and mlx4/mlx5
Acked-by: Jason Gunthorpe <jgg@mellanox.com> # IB
Acked-by: Kalle Valo <kvalo@codeaurora.org> # wireless drivers
Reviewed-by: Chao Yu <yuchao0@huawei.com> # erofs
Signed-off-by: Kees Cook <keescook@chromium.org>
2020-07-16 12:35:15 -07:00
..
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Makefile virtio-mem: Paravirtualized memory hotplug 2020-06-04 15:36:52 -04:00
virtio_balloon.c virtio-balloon: Disable free page reporting if page poison reporting is not enabled 2020-06-04 15:36:51 -04:00
virtio_input.c virtio_input: pull in slab.h 2020-04-17 06:05:29 -04:00
virtio_mem.c virtio-mem: add memory via add_memory_driver_managed() 2020-06-22 12:34:21 -04:00
virtio_mmio.c virtio-mmio: Delete an error message in vm_find_vqs() 2020-06-02 02:45:13 -04:00
virtio_pci_common.c virtio-pci: check name when counting MSI-X vectors 2020-02-06 03:40:26 -05:00
virtio_pci_common.h
virtio_pci_legacy.c
virtio_pci_modern.c virtio: add VIRTIO_RING_NO_LEGACY 2020-06-02 02:45:13 -04:00
virtio_ring.c treewide: Remove uninitialized_var() usage 2020-07-16 12:35:15 -07:00
virtio_vdpa.c virtio: introduce a vDPA based transport 2020-04-01 12:06:26 -04:00
virtio.c