arch/powerpc/net/bpf_jit_comp.c:550 bpf_jit_supports_fsession() warn: signedness bug returning '(-95)'

BCC: [email protected]
CC: [email protected]
CC: [email protected]
TO: Abhishek Dubey <[email protected]>
CC: Madhavan Srinivasan <[email protected]>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   8ba098e6b6ff0db8edf28528d1552be261af30d4
commit: 92258b5bf1ec10204c23a793793a65dc92d17014 powerpc32/bpf: Add fsession support
date:   4 months ago
:::::: branch date: 25 hours ago
:::::: commit date: 4 months ago
config: powerpc-randconfig-r073-20260801 (https://download.01.org/0day-ci/archive/20260801/[email protected]/config)
compiler: powerpc-linux-gcc (GCC) 8.5.0
smatch: v0.5.0-9187-g5189e3fb

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
| Fixes: 92258b5bf1ec ("powerpc32/bpf: Add fsession support")
| Reported-by: kernel test robot <[email protected]>
| Reported-by: Dan Carpenter <[email protected]>
| Closes: https://lore.kernel.org/r/[email protected]/

smatch warnings:
arch/powerpc/net/bpf_jit_comp.c:550 bpf_jit_supports_fsession() warn: signedness bug returning '(-95)'

vim +550 arch/powerpc/net/bpf_jit_comp.c

156d985123b6d6 Abhishek Dubey 2026-04-01  542  
6fab063bd8d64f Abhishek Dubey 2026-04-01  543  bool bpf_jit_supports_fsession(void)
6fab063bd8d64f Abhishek Dubey 2026-04-01  544  {
92258b5bf1ec10 Abhishek Dubey 2026-04-01  545  	/*
92258b5bf1ec10 Abhishek Dubey 2026-04-01  546  	 * TODO: Remove after validating support
92258b5bf1ec10 Abhishek Dubey 2026-04-01  547  	 * for fsession and trampoline on ppc32.
92258b5bf1ec10 Abhishek Dubey 2026-04-01  548  	 */
92258b5bf1ec10 Abhishek Dubey 2026-04-01  549  	if (IS_ENABLED(CONFIG_PPC32))
92258b5bf1ec10 Abhishek Dubey 2026-04-01 @550  		return -EOPNOTSUPP;
92258b5bf1ec10 Abhishek Dubey 2026-04-01  551  	return true;
6fab063bd8d64f Abhishek Dubey 2026-04-01  552  }
6fab063bd8d64f Abhishek Dubey 2026-04-01  553  

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