Eric Biggers <ebiggers@xxxxxxxxxx> writes: > On Fri, Aug 11, 2023 at 12:58:49AM +0530, Kamlesh Gurudasani wrote: >> diff --git a/lib/crc64-iso.c b/lib/crc64-iso.c >> new file mode 100644 >> index 000000000000..d6e803124fa0 > [...] >> +u64 crc64_iso_update(u64 crc, const unsigned char *buffer, size_t len) >> +{ >> + struct { >> + struct shash_desc shash; >> + u64 crc; >> + } desc; >> + int err; >> + >> + if (static_branch_unlikely(&crc64_iso_fallback)) >> + return crc64_iso_generic(crc, buffer, len); >> + >> + rcu_read_lock(); >> + desc.shash.tfm = rcu_dereference(crc64_iso_tfm); >> + desc.crc = crc; >> + err = crypto_shash_update(&desc.shash, buffer, len); >> + rcu_read_unlock(); >> + >> + WARN_ON_ONCE(err); >> + >> + return desc.crc; >> +} >> +EXPORT_SYMBOL_GPL(crc64_iso_update); >> + >> +u64 crc64_iso(const unsigned char *buffer, size_t len) >> +{ >> + return crc64_iso_update(0, buffer, len); >> +} >> +EXPORT_SYMBOL_GPL(crc64_iso); > > These functions are never called. > > Why are you trying to add unused code to the kernel? > > - Eric Thanks for the review, Eric. Will remove this in next revision. Regards, Kamlesh