On Mon, 29 Sep 2025 14:50:48 +0000 Kai Ji <[email protected]> wrote: > diff --git a/lib/eal/include/rte_memory.h b/lib/eal/include/rte_memory.h > index dcc0e69cfe..bbdef8e939 100644 > --- a/lib/eal/include/rte_memory.h > +++ b/lib/eal/include/rte_memory.h > @@ -746,6 +746,74 @@ __rte_experimental > void > rte_memzero_explicit(void *dst, size_t sz); > > +/** > + * @warning > + * @b EXPERIMENTAL: this API may change without prior notice. > + * > + * Constant-time memory inequality comparison. > + * > + * This function compares two memory regions in constant time, making it > + * resistant to timing side-channel attacks. The execution time depends only > + * on the length parameter, not on the actual data values being compared. > + * > + * This is particularly important for cryptographic operations where timing > + * differences could leak information about secret keys, passwords, or other > + * sensitive data. > + * > + * @param a > + * Pointer to the first memory region to compare > + * @param b > + * Pointer to the second memory region to compare > + * @param n > + * Number of bytes to compare > + * @return > + * false if the memory regions are identical, true if they differ > + */ > +__rte_experimental > +static inline bool > +rte_memneq_consttime(const void *a, const void *b, size_t n)
NAK Please change to match BSD equivalent function (ie not not equal)
