From: Richard Weinberger Subject: [PATCH] crypto: Make hifn_795x build depend on !ARCH_DMA_ADDR_T_64BIT Date: Mon, 10 Oct 2011 12:55:41 +0200 Message-ID: <1318244141-10879-1-git-send-email-richard@nod.at> Cc: linux-crypto@vger.kernel.org, herbert@gondor.apana.org.au, davem@davemloft.net, Richard Weinberger To: linux-kernel@vger.kernel.org Return-path: Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-crypto.vger.kernel.org hifn_795x works only on 32 bit, remove the detection while loading the module and catch non-32 bit systems at build time. Signed-off-by: Richard Weinberger --- drivers/crypto/Kconfig | 1 + drivers/crypto/hifn_795x.c | 6 ++---- 2 files changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig index e0b25de..fdbb726 100644 --- a/drivers/crypto/Kconfig +++ b/drivers/crypto/Kconfig @@ -200,6 +200,7 @@ config CRYPTO_DEV_HIFN_795X select CRYPTO_BLKCIPHER select HW_RANDOM if CRYPTO_DEV_HIFN_795X_RNG depends on PCI + depends on !ARCH_DMA_ADDR_T_64BIT help This option allows you to have support for HIFN 795x crypto adapters. diff --git a/drivers/crypto/hifn_795x.c b/drivers/crypto/hifn_795x.c index a84250a..fe765f4 100644 --- a/drivers/crypto/hifn_795x.c +++ b/drivers/crypto/hifn_795x.c @@ -2744,10 +2744,8 @@ static int __init hifn_init(void) unsigned int freq; int err; - if (sizeof(dma_addr_t) > 4) { - printk(KERN_INFO "HIFN supports only 32-bit addresses.\n"); - return -EINVAL; - } + /* HIFN supports only 32-bit addresses */ + BUILD_BUG_ON(sizeof(dma_addr_t) != 4); if (strncmp(hifn_pll_ref, "ext", 3) && strncmp(hifn_pll_ref, "pci", 3)) { -- 1.7.7