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Ard Biesheuvel
22ca9f4aaf
crypto_shash_alg_has_setkey() is implemented by testing whether the .setkey() member of a struct shash_alg points to the default version, called shash_no_setkey(). As crypto_shash_alg_has_setkey() is a static inline, this requires shash_no_setkey() to be exported to modules. Unfortunately, when building with CFI, function pointers are routed via CFI stubs which are private to each module (or to the kernel proper) and so this function pointer comparison may fail spuriously. Let's fix this by turning crypto_shash_alg_has_setkey() into an out of line function. Cc: Sami Tolvanen <[email protected]> Cc: Eric Biggers <[email protected]> Signed-off-by: Ard Biesheuvel <[email protected]> Reviewed-by: Eric Biggers <[email protected]> Reviewed-by: Sami Tolvanen <[email protected]> Signed-off-by: Herbert Xu <[email protected]>