>From 659823f2aad1635be4fb1f70cbddb8ae91a3d4aa Mon Sep 17 00:00:00 2001 From: jianghaoran Date: Thu, 1 Sep 2022 13:09:34 +0800 Subject: [PATCH] RDMA/siw: Solve the error of compiling the 32BIT mips kernel when enable CONFIG_RDMA_SIW MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit cross-compilation environment： ubuntu 20.04 mips-linux-gnu-gcc (Ubuntu 10.3.0-1ubuntu1~20.04) 10.3.0 generate a configuration file by make randconfig: CONFIG_32BIT=y CONFIG_RDMA_SIW=y the error message as follows： In file included from ../arch/mips/include/asm/page.h:270, from ../arch/mips/include/asm/io.h:29, from ../arch/mips/include/asm/mmiowb.h:5, from ../include/linux/spinlock.h:64, from ../include/linux/wait.h:9, from ../include/linux/net.h:19, from ../drivers/infiniband/sw/siw/siw_qp_tx.c:8: ../drivers/infiniband/sw/siw/siw_qp_tx.c: In function ‘siw_tx_hdt’: ../arch/mips/include/asm/page.h:255:53: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast] 255 | #define virt_to_pfn(kaddr) PFN_DOWN(virt_to_phys((void *)(kaddr))) | ^ ../include/asm-generic/memory_model.h:18:41: note: in definition of macro ‘__pfn_to_page’ 18 | #define __pfn_to_page(pfn) (mem_map + ((pfn) - ARCH_PFN_OFFSET)) | ^~~ ../arch/mips/include/asm/page.h:255:31: note: in expansion of macro ‘PFN_DOWN’ 255 | #define virt_to_pfn(kaddr) PFN_DOWN(virt_to_phys((void *)(kaddr))) | ^~~~~~~~ ../arch/mips/include/asm/page.h:256:41: note: in expansion of macro ‘virt_to_pfn’ 256 | #define virt_to_page(kaddr) pfn_to_page(virt_to_pfn(kaddr)) | ^~~~~~~~~~~ ../drivers/infiniband/sw/siw/siw_qp_tx.c:538:23: note: in expansion of macro ‘virt_to_page’ 538 | page_array[seg] = virt_to_page(va & PAGE_MASK); | ^~~~~~~~~~~~ cc1: all warnings being treated as errors make[5]: *** [../scripts/Makefile.build:249: drivers/infiniband/sw/siw/siw_qp_tx.o] Error 1 make[4]: *** [../scripts/Makefile.build:465: drivers/infiniband/sw/siw] Error 2 make[3]: *** [../scripts/Makefile.build:465: drivers/infiniband/sw] Error 2 make[3]: *** Waiting for unfinished jobs.... Reported-by: k2ci Signed-off-by: jianghaoran --- drivers/infiniband/sw/siw/siw_qp_tx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/sw/siw/siw_qp_tx.c b/drivers/infiniband/sw/siw/siw_qp_tx.c index 1f4e60257700..4bd7ccae614e 100644 --- a/drivers/infiniband/sw/siw/siw_qp_tx.c +++ b/drivers/infiniband/sw/siw/siw_qp_tx.c @@ -29,7 +29,7 @@ static struct page *siw_get_pblpage(struct siw_mem *mem, u64 addr, int *idx) dma_addr_t paddr = siw_pbl_get_buffer(pbl, offset, NULL, idx); if (paddr) - return virt_to_page(paddr); + return virt_to_page((void*)paddr); return NULL; } @@ -533,7 +533,7 @@ static int siw_tx_hdt(struct siw_iwarp_tx *c_tx, struct socket *s) kunmap_local(kaddr); } } else { - u64 va = sge->laddr + sge_off; + uintptr_t va = sge->laddr + sge_off; page_array[seg] = virt_to_page(va & PAGE_MASK); if (do_crc) -- 2.25.1