From: kernel test robot <lkp@intel.com>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
linux-kernel@vger.kernel.org, "Jakub Kicinski" <kuba@kernel.org>,
"Toke Høiland-Jørgensen" <toke@redhat.com>
Subject: net/bpf/test_run.c:370:12: warning: stack frame size (1152) exceeds limit (1024) in 'bpf_test_run_xdp_live'
Date: Tue, 24 Jun 2025 09:36:25 +0800 [thread overview]
Message-ID: <202506240921.WNcmLMhg-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 78f4e737a53e1163ded2687a922fce138aee73f5
commit: 3f9fe37d9e16a6cfd5f4d1f536686ea71db3196f net: Move per-CPU flush-lists to bpf_net_context on PREEMPT_RT.
date: 12 months ago
config: powerpc-allyesconfig (https://download.01.org/0day-ci/archive/20250624/202506240921.WNcmLMhg-lkp@intel.com/config)
compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project 875b36a8742437b95f623bab1e0332562c7b4b3f)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250624/202506240921.WNcmLMhg-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202506240921.WNcmLMhg-lkp@intel.com/
All warnings (new ones prefixed by >>):
include/linux/vmstat.h:514:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
514 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
include/linux/vmstat.h:519:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
519 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
520 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:528:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
528 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
529 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
In file included from net/bpf/test_run.c:17:
In file included from include/net/tcp.h:32:
In file included from include/net/inet_hashtables.h:26:
include/net/ip.h:472:14: warning: default initialization of an object of type 'typeof (rt->dst.expires)' (aka 'const unsigned long') leaves the object uninitialized [-Wdefault-const-init-var-unsafe]
472 | if (mtu && time_before(jiffies, rt->dst.expires))
| ^
include/linux/jiffies.h:138:26: note: expanded from macro 'time_before'
138 | #define time_before(a,b) time_after(b,a)
| ^
include/linux/jiffies.h:128:3: note: expanded from macro 'time_after'
128 | (typecheck(unsigned long, a) && \
| ^
include/linux/typecheck.h:11:12: note: expanded from macro 'typecheck'
11 | typeof(x) __dummy2; \
| ^
net/bpf/test_run.c:451:26: warning: default initialization of an object of type 'typeof ((kattr->test.data_out))' (aka 'const unsigned long long') leaves the object uninitialized [-Wdefault-const-init-var-unsafe]
451 | void __user *data_out = u64_to_user_ptr(kattr->test.data_out);
| ^
include/linux/kernel.h:52:2: note: expanded from macro 'u64_to_user_ptr'
52 | typecheck(u64, (x)); \
| ^
include/linux/typecheck.h:11:12: note: expanded from macro 'typecheck'
11 | typeof(x) __dummy2; \
| ^
net/bpf/test_run.c:658:25: warning: default initialization of an object of type 'typeof ((kattr->test.data_in))' (aka 'const unsigned long long') leaves the object uninitialized [-Wdefault-const-init-var-unsafe]
658 | void __user *data_in = u64_to_user_ptr(kattr->test.data_in);
| ^
include/linux/kernel.h:52:2: note: expanded from macro 'u64_to_user_ptr'
52 | typecheck(u64, (x)); \
| ^
include/linux/typecheck.h:11:12: note: expanded from macro 'typecheck'
11 | typeof(x) __dummy2; \
| ^
net/bpf/test_run.c:755:24: warning: default initialization of an object of type 'typeof ((kattr->test.ctx_in))' (aka 'const unsigned long long') leaves the object uninitialized [-Wdefault-const-init-var-unsafe]
755 | void __user *ctx_in = u64_to_user_ptr(kattr->test.ctx_in);
| ^
include/linux/kernel.h:52:2: note: expanded from macro 'u64_to_user_ptr'
52 | typecheck(u64, (x)); \
| ^
include/linux/typecheck.h:11:12: note: expanded from macro 'typecheck'
11 | typeof(x) __dummy2; \
| ^
net/bpf/test_run.c:811:25: warning: default initialization of an object of type 'typeof ((kattr->test.ctx_in))' (aka 'const unsigned long long') leaves the object uninitialized [-Wdefault-const-init-var-unsafe]
811 | void __user *data_in = u64_to_user_ptr(kattr->test.ctx_in);
| ^
include/linux/kernel.h:52:2: note: expanded from macro 'u64_to_user_ptr'
52 | typecheck(u64, (x)); \
| ^
include/linux/typecheck.h:11:12: note: expanded from macro 'typecheck'
11 | typeof(x) __dummy2; \
| ^
net/bpf/test_run.c:812:26: warning: default initialization of an object of type 'typeof ((kattr->test.ctx_out))' (aka 'const unsigned long long') leaves the object uninitialized [-Wdefault-const-init-var-unsafe]
812 | void __user *data_out = u64_to_user_ptr(kattr->test.ctx_out);
| ^
include/linux/kernel.h:52:2: note: expanded from macro 'u64_to_user_ptr'
52 | typecheck(u64, (x)); \
| ^
include/linux/typecheck.h:11:12: note: expanded from macro 'typecheck'
11 | typeof(x) __dummy2; \
| ^
net/bpf/test_run.c:844:26: warning: default initialization of an object of type 'typeof ((kattr->test.ctx_out))' (aka 'const unsigned long long') leaves the object uninitialized [-Wdefault-const-init-var-unsafe]
844 | void __user *data_out = u64_to_user_ptr(kattr->test.ctx_out);
| ^
include/linux/kernel.h:52:2: note: expanded from macro 'u64_to_user_ptr'
52 | typecheck(u64, (x)); \
| ^
include/linux/typecheck.h:11:12: note: expanded from macro 'typecheck'
11 | typeof(x) __dummy2; \
| ^
net/bpf/test_run.c:1251:26: warning: default initialization of an object of type 'typeof ((kattr->test.data_in))' (aka 'const unsigned long long') leaves the object uninitialized [-Wdefault-const-init-var-unsafe]
1251 | void __user *data_in = u64_to_user_ptr(kattr->test.data_in);
| ^
include/linux/kernel.h:52:2: note: expanded from macro 'u64_to_user_ptr'
52 | typecheck(u64, (x)); \
| ^
include/linux/typecheck.h:11:12: note: expanded from macro 'typecheck'
11 | typeof(x) __dummy2; \
| ^
net/bpf/test_run.c:1508:24: warning: default initialization of an object of type 'typeof ((kattr->test.ctx_in))' (aka 'const unsigned long long') leaves the object uninitialized [-Wdefault-const-init-var-unsafe]
1508 | void __user *ctx_in = u64_to_user_ptr(kattr->test.ctx_in);
| ^
include/linux/kernel.h:52:2: note: expanded from macro 'u64_to_user_ptr'
52 | typecheck(u64, (x)); \
| ^
include/linux/typecheck.h:11:12: note: expanded from macro 'typecheck'
11 | typeof(x) __dummy2; \
| ^
>> net/bpf/test_run.c:370:12: warning: stack frame size (1152) exceeds limit (1024) in 'bpf_test_run_xdp_live' [-Wframe-larger-than]
370 | static int bpf_test_run_xdp_live(struct bpf_prog *prog, struct xdp_buff *ctx,
| ^
15 warnings generated.
vim +/bpf_test_run_xdp_live +370 net/bpf/test_run.c
b530e9e1063ed2 Toke Høiland-Jørgensen 2022-03-09 369
b530e9e1063ed2 Toke Høiland-Jørgensen 2022-03-09 @370 static int bpf_test_run_xdp_live(struct bpf_prog *prog, struct xdp_buff *ctx,
b530e9e1063ed2 Toke Høiland-Jørgensen 2022-03-09 371 u32 repeat, u32 batch_size, u32 *time)
b530e9e1063ed2 Toke Høiland-Jørgensen 2022-03-09 372
:::::: The code at line 370 was first introduced by commit
:::::: b530e9e1063ed2b817eae7eec6ed2daa8be11608 bpf: Add "live packet" mode for XDP in BPF_PROG_RUN
:::::: TO: Toke Høiland-Jørgensen <toke@redhat.com>
:::::: CC: Alexei Starovoitov <ast@kernel.org>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2025-06-24 1:37 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=202506240921.WNcmLMhg-lkp@intel.com \
--to=lkp@intel.com \
--cc=bigeasy@linutronix.de \
--cc=kuba@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=llvm@lists.linux.dev \
--cc=oe-kbuild-all@lists.linux.dev \
--cc=toke@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.