diff options
| author | Tiwei Bie <[email protected]> | 2025-06-23 11:08:29 +0000 |
|---|---|---|
| committer | Johannes Berg <[email protected]> | 2025-06-25 07:28:17 +0000 |
| commit | 2d65fc13be85c336c56af7077f08ccd3a3a15a4a (patch) | |
| tree | bf64b05d6cf1890222fdfc62e1b8a1e3c58c06c7 /lib/memory-notifier-error-inject.c | |
| parent | um: Use correct data source in fpregs_legacy_set() (diff) | |
| download | kernel-2d65fc13be85c336c56af7077f08ccd3a3a15a4a.tar.gz kernel-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 <[email protected]>
Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Signed-off-by: Tiwei Bie <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Johannes Berg <[email protected]>
Diffstat (limited to 'lib/memory-notifier-error-inject.c')
0 files changed, 0 insertions, 0 deletions