diff options
Diffstat (limited to 'lib/Kconfig.debug')
| -rw-r--r-- | lib/Kconfig.debug | 40 |
1 files changed, 36 insertions, 4 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 3e64a8a809f9..a164785c3b48 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -476,6 +476,38 @@ config DEBUG_FS If unsure, say N. +choice + prompt "Debugfs default access" + depends on DEBUG_FS + default DEBUG_FS_ALLOW_ALL + help + This selects the default access restrictions for debugfs. + It can be overridden with kernel command line option + debugfs=[on,no-mount,off]. The restrictions apply for API access + and filesystem registration. + +config DEBUG_FS_ALLOW_ALL + bool "Access normal" + help + No restrictions apply. Both API and filesystem registration + is on. This is the normal default operation. + +config DEBUG_FS_DISALLOW_MOUNT + bool "Do not register debugfs as filesystem" + help + The API is open but filesystem is not loaded. Clients can still do + their work and read with debug tools that do not need + debugfs filesystem. + +config DEBUG_FS_ALLOW_NONE + bool "No access" + help + Access is off. Clients get -PERM when trying to create nodes in + debugfs tree and debugfs is not registered as a filesystem. + Client can then back-off or continue without debugfs access. + +endchoice + source "lib/Kconfig.kgdb" source "lib/Kconfig.ubsan" @@ -844,10 +876,10 @@ config DEBUG_SHIRQ bool "Debug shared IRQ handlers" depends on DEBUG_KERNEL help - Enable this to generate a spurious interrupt as soon as a shared - interrupt handler is registered, and just before one is deregistered. - Drivers ought to be able to handle interrupts coming in at those - points; some don't and need to be caught. + Enable this to generate a spurious interrupt just before a shared + interrupt handler is deregistered (generating one when registering + is currently disabled). Drivers need to handle this correctly. Some + don't and need to be caught. menu "Debug Oops, Lockups and Hangs" |