Re: [PATCH] remoteproc: use SIZE_MAX in rproc_u64_fit_in_size_t()

From: kernel test robot

Date: Wed Mar 18 2026 - 00:29:36 EST


Hi Anas,

kernel test robot noticed the following build warnings:

[auto build test WARNING on remoteproc/rproc-next]
[also build test WARNING on linus/master v7.0-rc4 next-20260317]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Anas-Iqbal/remoteproc-use-SIZE_MAX-in-rproc_u64_fit_in_size_t/20260315-042913
base: https://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux.git rproc-next
patch link: https://lore.kernel.org/r/20260314110137.178981-1-mohd.abd.6602%40gmail.com
patch subject: [PATCH] remoteproc: use SIZE_MAX in rproc_u64_fit_in_size_t()
config: arm64-randconfig-r072-20260317 (https://download.01.org/0day-ci/archive/20260318/202603181241.MTvrVLVa-lkp@xxxxxxxxx/config)
compiler: aarch64-linux-gcc (GCC) 8.5.0
smatch: v0.5.0-9004-gb810ac53

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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202603181241.MTvrVLVa-lkp@xxxxxxxxx/

smatch warnings:
drivers/remoteproc/remoteproc_internal.h:221 rproc_u64_fit_in_size_t() warn: always true condition '(val <= (~0)) => (0-u64max <= u64max)'

vim +221 drivers/remoteproc/remoteproc_internal.h

214
215 static inline
216 bool rproc_u64_fit_in_size_t(u64 val)
217 {
218 if (sizeof(size_t) == sizeof(u64))
219 return true;
220
> 221 return val <= SIZE_MAX;
222 }
223

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