linux/arch/sparc
Eric W. Biederman 984bd71fb3 signal/sparc: In setup_tsb_params convert open coded BUG into BUG
The function setup_tsb_params has exactly one caller tsb_grow.  The
function tsb_grow passes in a tsb_bytes value that is between 8192 and
1048576 inclusive, and is guaranteed to be a power of 2.  The function
setup_tsb_params verifies this property with a switch statement and
then prints an error and causes the task to exit if this is not true.

In practice that print statement can never be reached because tsb_grow
never passes in a bad tsb_size.  So if tsb_size ever gets a bad value
that is a kernel bug.

So replace the do_exit which is effectively an open coded version of
BUG() with an actuall call to BUG().  Making it clearer that this
is a case that can never, and should never happen.

Cc: David Miller <davem@davemloft.net>
Cc: sparclinux@vger.kernel.org
Link: https://lkml.kernel.org/r/20211020174406.17889-8-ebiederm@xmission.com
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2021-10-25 15:56:29 -05:00
..
boot sparc: move the install rule to arch/sparc/Makefile 2021-09-03 08:17:20 +09:00
configs drivers/char: remove /dev/kmem for good 2021-05-07 00:26:34 -07:00
crypto crypto: sparc - Fix sparse endianness warnings 2020-11-27 17:13:42 +11:00
include arch: remove compat_alloc_user_space 2021-09-08 15:32:35 -07:00
kernel arch: remove compat_alloc_user_space 2021-09-08 15:32:35 -07:00
lib locking/atomic: sparc: move to ARCH_ATOMIC 2021-05-26 13:20:52 +02:00
math-emu treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
mm signal/sparc: In setup_tsb_params convert open coded BUG into BUG 2021-10-25 15:56:29 -05:00
net bpf: Introduce BPF nospec instruction for mitigating Spectre v4 2021-07-29 00:20:56 +02:00
power treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
prom License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vdso treewide: remove DISABLE_LTO 2020-10-21 00:28:53 +09:00
Kbuild treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
Kconfig Tracing updates for 5.15: 2021-09-05 11:50:41 -07:00
Kconfig.debug tracing: Refactor TRACE_IRQFLAGS_SUPPORT in Kconfig 2021-08-16 11:37:21 -04:00
Makefile sparc: move the install rule to arch/sparc/Makefile 2021-09-03 08:17:20 +09:00