From 75b766258eb2b8255c628a994663bd5298f216e6 Mon Sep 17 00:00:00 2001 From: Richard Weinberger Date: Mon, 10 Oct 2011 12:55:41 +0200 Subject: [PATCH] crypto: Make hifn_795x build depend on !ARCH_DMA_ADDR_T_64BIT 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 Signed-off-by: Herbert Xu --- 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 4ac6d4d2bd14..6d16b4b0d7a0 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 a84250a5dd51..fe765f49de58 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)) { -- 2.39.5