linux_dsm_epyc7002/arch/powerpc
Kees Cook 1ef79040a5 KVM: PPC: Book3S PR: 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. As a precursor
to removing[2] this[3] macro[4], just remove this variable since it was
actually unused:

arch/powerpc/kvm/book3s_pr.c:1832:16: warning: unused variable 'vrsave' [-Wunused-variable]
        unsigned long vrsave;
                      ^

[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/

Suggested-by: Nathan Chancellor <natechancellor@gmail.com>
Fixes: f05ed4d56e ("KVM: PPC: Split out code from book3s.c into book3s_pr.c")
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
2020-07-16 12:32:26 -07:00
..
boot powerpc/40x: Remove EP405 2020-05-28 23:24:35 +10:00
configs powerpc/configs: Add LIBNVDIMM to ppc64_defconfig 2020-06-02 20:59:08 +10:00
crypto crypto: lib/sha1 - remove unnecessary includes of linux/cryptohash.h 2020-05-08 15:32:17 +10:00
include powerpc fixes for 5.8 #3 2020-06-21 10:02:53 -07:00
kernel powerpc fixes for 5.8 #3 2020-06-21 10:02:53 -07:00
kexec powerpc/crash: Use NMI context for printk when starting to crash 2020-06-02 20:59:07 +10:00
kvm KVM: PPC: Book3S PR: Remove uninitialized_var() usage 2020-07-16 12:32:26 -07:00
lib maccess: rename probe_user_{read,write} to copy_{from,to}_user_nofault 2020-06-17 10:57:41 -07:00
math-emu treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
mm powerpc/fsl_booke/32: Fix build with CONFIG_RANDOMIZE_BASE 2020-06-22 20:41:52 +10:00
net treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
oprofile maccess: rename probe_user_{read,write} to copy_{from,to}_user_nofault 2020-06-17 10:57:41 -07:00
perf maccess: rename probe_user_{read,write} to copy_{from,to}_user_nofault 2020-06-17 10:57:41 -07:00
platforms powerpc fixes for 5.8 #3 2020-06-21 10:02:53 -07:00
purgatory .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
sysdev maccess: rename probe_kernel_address to get_kernel_nofault 2020-06-18 11:14:40 -07:00
tools powerpc/head_check: Avoid broken pipe 2020-05-19 00:10:35 +10:00
xmon mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
Kbuild powerpc/kexec: Move kexec files into a dedicated subdir. 2019-11-21 15:41:34 +11:00
Kconfig powerpc updates for 5.8 2020-06-05 12:39:30 -07:00
Kconfig.debug powerpc: Remove Xilinx PPC405/PPC440 support 2020-05-28 23:24:34 +10:00
Makefile powerpc: Suppress .eh_frame generation 2020-04-01 14:30:51 +11:00
Makefile.postlink powerpc: Do not consider weak unresolved symbol relocations as bad 2020-01-31 20:17:22 +11:00