[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20230526065414.GB875@sol.localdomain>
Date: Thu, 25 May 2023 23:54:14 -0700
From: Eric Biggers <ebiggers@...nel.org>
To: "Chang S. Bae" <chang.seok.bae@...el.com>
Cc: linux-kernel@...r.kernel.org, linux-crypto@...r.kernel.org,
dm-devel@...hat.com, elliott@....com, gmazyland@...il.com,
luto@...nel.org, dave.hansen@...ux.intel.com, tglx@...utronix.de,
bp@...en8.de, mingo@...nel.org, x86@...nel.org,
herbert@...dor.apana.org.au, ardb@...nel.org,
dan.j.williams@...el.com, bernie.keany@...el.com,
charishma1.gairuboyina@...el.com,
lalithambika.krishnakumar@...el.com, nhuck@...gle.com,
"David S. Miller" <davem@...emloft.net>,
Ingo Molnar <mingo@...hat.com>,
"H. Peter Anvin" <hpa@...or.com>
Subject: Re: [PATCH v7 10/12] crypto: x86/aesni - Use the proper data type in
struct aesni_xts_ctx
On Wed, May 24, 2023 at 09:57:15AM -0700, Chang S. Bae wrote:
> +static inline unsigned long aes_align_addr(unsigned long addr)
> +{
> + return (crypto_tfm_ctx_alignment() >= AESNI_ALIGN) ?
> + ALIGN(addr, 1) : ALIGN(addr, AESNI_ALIGN);
> +}
Wouldn't it be simpler to make this take and return 'void *'? Then the callers
wouldn't need to cast to/from 'unsigned long'.
Also, aligning to a 1-byte boundary is a no-op.
So, please consider the following:
static inline void *aes_align_addr(void *addr)
{
if (crypto_tfm_ctx_alignment() >= AES_ALIGN)
return addr;
return PTR_ALIGN(addr, AES_ALIGN);
}
Also, aesni_rfc4106_gcm_ctx_get() and generic_gcmaes_ctx_get() should call this
too, rather than duplicating similar code.
- Eric
Powered by blists - more mailing lists