Patch "scripts/gdb: bail early if there are no clocks" has been added to the 5.10-stable tree

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This is a note to let you know that I've just added the patch titled

    scripts/gdb: bail early if there are no clocks

to the 5.10-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     scripts-gdb-bail-early-if-there-are-no-clocks.patch
and it can be found in the queue-5.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 3e4771ea3269f6770fab3c9844996bf25abe81c3
Author: Florian Fainelli <f.fainelli@xxxxxxxxx>
Date:   Thu Mar 23 15:52:45 2023 -0700

    scripts/gdb: bail early if there are no clocks
    
    [ Upstream commit 1d7adbc74c009057ed9dc3112f388e91a9c79acc ]
    
    Avoid generating an exception if there are no clocks registered:
    
    (gdb) lx-clk-summary
                                     enable  prepare  protect
       clock                          count    count    count        rate
    ------------------------------------------------------------------------
    Python Exception <class 'gdb.error'>: No symbol "clk_root_list" in
    current context.
    Error occurred in Python: No symbol "clk_root_list" in current context.
    
    Link: https://lkml.kernel.org/r/20230323225246.3302977-1-f.fainelli@xxxxxxxxx
    Fixes: d1e9710b63d8 ("scripts/gdb: initial clk support: lx-clk-summary")
    Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
    Cc: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
    Cc: Kieran Bingham <kbingham@xxxxxxxxxx>
    Cc: Leonard Crestez <leonard.crestez@xxxxxxx>
    Cc: Stephen Boyd <sboyd@xxxxxxxxxx>
    Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/scripts/gdb/linux/clk.py b/scripts/gdb/linux/clk.py
index 061aecfa294e6..7a01fdc3e8446 100644
--- a/scripts/gdb/linux/clk.py
+++ b/scripts/gdb/linux/clk.py
@@ -41,6 +41,8 @@ are cached and potentially out of date"""
             self.show_subtree(child, level + 1)
 
     def invoke(self, arg, from_tty):
+        if utils.gdb_eval_or_none("clk_root_list") is None:
+            raise gdb.GdbError("No clocks registered")
         gdb.write("                                 enable  prepare  protect               \n")
         gdb.write("   clock                          count    count    count        rate   \n")
         gdb.write("------------------------------------------------------------------------\n")



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