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| author | Florian Fainelli <florian.fainelli@broadcom.com> | 2025-06-25 05:10:20 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-07-17 19:35:15 +0300 |
| commit | f64046ae340159f31dc8fb5fcfd1ebeccc04fef3 (patch) | |
| tree | c3043000a858db186e8e1a4bb1417e0909df4bce /scripts/gdb/linux/constants.py.in | |
| parent | ecf16604f3f0fa88f9c16a1a4b7991316f3e2a2e (diff) | |
| download | linux-f64046ae340159f31dc8fb5fcfd1ebeccc04fef3.tar.xz | |
scripts/gdb: fix interrupts.py after maple tree conversion
commit a02b0cde8ee515ee0c8efd33e7fbe6830c282e69 upstream.
In commit 721255b9826b ("genirq: Use a maple tree for interrupt descriptor
management"), the irq_desc_tree was replaced with a sparse_irqs tree using
a maple tree structure. Since the script looked for the irq_desc_tree
symbol which is no longer available, no interrupts would be printed and
the script output would not be useful anymore.
In addition to looking up the correct symbol (sparse_irqs), a new module
(mapletree.py) is added whose mtree_load() implementation is largely
copied after the C version and uses the same variable and intermediate
function names wherever possible to ensure that both the C and Python
version be updated in the future.
This restores the scripts' output to match that of /proc/interrupts.
Link: https://lkml.kernel.org/r/20250625021020.1056930-1-florian.fainelli@broadcom.com
Fixes: 721255b9826b ("genirq: Use a maple tree for interrupt descriptor management")
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Shanker Donthineni <sdonthineni@nvidia.com>
Cc: Thomas Gleinxer <tglx@linutronix.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts/gdb/linux/constants.py.in')
| -rw-r--r-- | scripts/gdb/linux/constants.py.in | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/scripts/gdb/linux/constants.py.in b/scripts/gdb/linux/constants.py.in index e810e0c27ff1..866c13468ebf 100644 --- a/scripts/gdb/linux/constants.py.in +++ b/scripts/gdb/linux/constants.py.in @@ -20,6 +20,7 @@ #include <linux/of_fdt.h> #include <linux/page_ext.h> #include <linux/radix-tree.h> +#include <linux/maple_tree.h> #include <linux/slab.h> #include <linux/threads.h> #include <linux/vmalloc.h> @@ -93,6 +94,12 @@ LX_GDBPARSED(RADIX_TREE_MAP_SIZE) LX_GDBPARSED(RADIX_TREE_MAP_SHIFT) LX_GDBPARSED(RADIX_TREE_MAP_MASK) +/* linux/maple_tree.h */ +LX_VALUE(MAPLE_NODE_SLOTS) +LX_VALUE(MAPLE_RANGE64_SLOTS) +LX_VALUE(MAPLE_ARANGE64_SLOTS) +LX_GDBPARSED(MAPLE_NODE_MASK) + /* linux/vmalloc.h */ LX_VALUE(VM_IOREMAP) LX_VALUE(VM_ALLOC) |