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| author |   Tiwei Bie <tiwei.btw@antgroup.com> | 2025-06-23 19:08:29 +0800 |
|---|---|---|
| committer |   Johannes Berg <johannes.berg@intel.com> | 2025-06-25 09:28:17 +0200 |
| commit | 2d65fc13be85c336c56af7077f08ccd3a3a15a4a (patch) | |
| tree | bf64b05d6cf1890222fdfc62e1b8a1e3c58c06c7 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | um: Use correct data source in fpregs_legacy_set() (diff) | |
| download | wireguard-linux-2d65fc13be85c336c56af7077f08ccd3a3a15a4a.tar.xz wireguard-linux-2d65fc13be85c336c56af7077f08ccd3a3a15a4a.zip | |
um: vector: Reduce stack usage in vector_eth_configure()
When compiling with clang (19.1.7), initializing *vp using a compound
literal may result in excessive stack usage. Fix it by initializing the
required fields of *vp individually.
Without this patch:
$ objdump -d arch/um/drivers/vector_kern.o | ./scripts/checkstack.pl x86_64 0
...
0x0000000000000540 vector_eth_configure [vector_kern.o]:1472
...
With this patch:
$ objdump -d arch/um/drivers/vector_kern.o | ./scripts/checkstack.pl x86_64 0
...
0x0000000000000540 vector_eth_configure [vector_kern.o]:208
...
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202506221017.WtB7Usua-lkp@intel.com/
Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
Link: https://patch.msgid.link/20250623110829.314864-1-tiwei.btw@antgroup.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions