Fork of alistair23 Linux kernel for reMarkable from https://github.com/alistair23/linux
3d584a3c85
When fall-through warnings was enabled by default, commit d93512ef0f0e
("Makefile: Globally enable fall-through warning"), the following
warnings was starting to show up:
In file included from ../arch/arm64/include/asm/kvm_emulate.h:19,
from ../arch/arm64/kvm/regmap.c:13:
../arch/arm64/kvm/regmap.c: In function ‘vcpu_write_spsr32’:
../arch/arm64/include/asm/kvm_hyp.h:31:3: warning: this statement may fall
through [-Wimplicit-fallthrough=]
asm volatile(ALTERNATIVE(__msr_s(r##nvh, "%x0"), \
^~~
../arch/arm64/include/asm/kvm_hyp.h:46:31: note: in expansion of macro ‘write_sysreg_elx’
#define write_sysreg_el1(v,r) write_sysreg_elx(v, r, _EL1, _EL12)
^~~~~~~~~~~~~~~~
../arch/arm64/kvm/regmap.c:180:3: note: in expansion of macro ‘write_sysreg_el1’
write_sysreg_el1(v, SYS_SPSR);
^~~~~~~~~~~~~~~~
../arch/arm64/kvm/regmap.c:181:2: note: here
case KVM_SPSR_ABT:
^~~~
In file included from ../arch/arm64/include/asm/cputype.h:132,
from ../arch/arm64/include/asm/cache.h:8,
from ../include/linux/cache.h:6,
from ../include/linux/printk.h:9,
from ../include/linux/kernel.h:15,
from ../include/asm-generic/bug.h:18,
from ../arch/arm64/include/asm/bug.h:26,
from ../include/linux/bug.h:5,
from ../include/linux/mmdebug.h:5,
from ../include/linux/mm.h:9,
from ../arch/arm64/kvm/regmap.c:11:
../arch/arm64/include/asm/sysreg.h:837:2: warning: this statement may fall
through [-Wimplicit-fallthrough=]
asm volatile("msr " __stringify(r) ", %x0" \
^~~
../arch/arm64/kvm/regmap.c:182:3: note: in expansion of macro ‘write_sysreg’
write_sysreg(v, spsr_abt);
^~~~~~~~~~~~
../arch/arm64/kvm/regmap.c:183:2: note: here
case KVM_SPSR_UND:
^~~~
Rework to add a 'break;' in the swich-case since it didn't have that,
leading to an interresting set of bugs.
Cc: stable@vger.kernel.org # v4.17+
Fixes:
|
||
---|---|---|
Documentation | ||
LICENSES | ||
arch | ||
block | ||
certs | ||
crypto | ||
drivers | ||
fs | ||
include | ||
init | ||
ipc | ||
kernel | ||
lib | ||
mm | ||
net | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
virt | ||
.clang-format | ||
.cocciconfig | ||
.get_maintainer.ignore | ||
.gitattributes | ||
.gitignore | ||
.mailmap | ||
COPYING | ||
CREDITS | ||
Kbuild | ||
Kconfig | ||
MAINTAINERS | ||
Makefile | ||
README |
README
Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.