Re: [PATCH 1/1] io_uring/zcrx: fix builds without dmabuf

[Jens Axboe <axboe@kernel.dk>]

On 5/6/25 10:10 AM, Pavel Begunkov wrote:
> On 5/6/25 17:08, Pavel Begunkov wrote:
>> armv7a-unknown-linux-gnueabihf-ld: io_uring/zcrx.o: in function
>> `io_release_dmabuf':
>> zcrx.c:(.text+0x1c): undefined reference to `dma_buf_unmap_attachment_unlocked'
>> armv7a-unknown-linux-gnueabihf-ld: zcrx.c:(.text+0x30): undefined
>> reference to `dma_buf_detach'
>> armv7a-unknown-linux-gnueabihf-ld: zcrx.c:(.text+0x40): undefined
>> reference to `dma_buf_put'
>> armv7a-unknown-linux-gnueabihf-ld: io_uring/zcrx.o: in function
>> `io_register_zcrx_ifq':
>> zcrx.c:(.text+0x15cc): undefined reference to `dma_buf_get'
>> armv7a-unknown-linux-gnueabihf-ld: zcrx.c:(.text+0x15e8): undefined
>> reference to `dma_buf_attach'
>> armv7a-unknown-linux-gnueabihf-ld: zcrx.c:(.text+0x1604): undefined
>> reference to `dma_buf_map_attachment_unlocked'
>> make[2]: *** [scripts/Makefile.vmlinux:91: vmlinux] Error 1
>> make[1]: *** [/home/alchark/linux/Makefile:1242: vmlinux] Error 2
>> make: *** [Makefile:248: __sub-make] Error 2
>>
>> There are no definitions for dma-buf functions without
>> CONFIG_DMA_SHARED_BUFFER, make sure we don't try to link to them
>> if dma-bufs are not enabled.
> 
> Jens, you'd probably want to squash it into a42c735833315bbe7a54
> ("io_uring/zcrx: dmabuf backed zerocopy receive")

Done, added the new link too.

-- 
Jens Axboe