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Message-Id: <b373adf0d141449f5eb208e8bae46ce72c6e468b.1443840028.git.geliangtang@163.com> Date: Sat, 3 Oct 2015 10:43:11 +0800 From: Geliang Tang <geliangtang@....com> To: Mike Marciniszyn <infinipath@...el.com>, Doug Ledford <dledford@...hat.com>, Sean Hefty <sean.hefty@...el.com>, Hal Rosenstock <hal.rosenstock@...il.com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org> Cc: Geliang Tang <geliangtang@....com>, linux-rdma@...r.kernel.org, devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org Subject: [PATCH] IB/ipath: use offset_in_page macro Use offset_in_page macro instead of (addr & ~PAGE_MASK). Signed-off-by: Geliang Tang <geliangtang@....com> --- drivers/staging/rdma/ipath/ipath_user_sdma.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/staging/rdma/ipath/ipath_user_sdma.c b/drivers/staging/rdma/ipath/ipath_user_sdma.c index cc04b7b..e82b3ee 100644 --- a/drivers/staging/rdma/ipath/ipath_user_sdma.c +++ b/drivers/staging/rdma/ipath/ipath_user_sdma.c @@ -239,7 +239,7 @@ static int ipath_user_sdma_num_pages(const struct iovec *iov) /* truncate length to page boundary */ static int ipath_user_sdma_page_length(unsigned long addr, unsigned long len) { - const unsigned long offset = addr & ~PAGE_MASK; + const unsigned long offset = offset_in_page(addr); return ((offset + len) > PAGE_SIZE) ? (PAGE_SIZE - offset) : len; } @@ -298,7 +298,7 @@ static int ipath_user_sdma_pin_pages(const struct ipath_devdata *dd, dma_addr_t dma_addr = dma_map_page(&dd->pcidev->dev, pages[j], 0, flen, DMA_TO_DEVICE); - unsigned long fofs = addr & ~PAGE_MASK; + unsigned long fofs = offset_in_page(addr); if (dma_mapping_error(&dd->pcidev->dev, dma_addr)) { ret = -ENOMEM; -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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