linux-kernel - linux-next: build failure after merge of the rdma tree

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Date:   Wed, 26 Feb 2020 13:51:27 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Doug Ledford <dledford@...hat.com>,
        Jason Gunthorpe <jgg@...lanox.com>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Devesh Sharma <devesh.sharma@...adcom.com>,
        Naresh Kumar PBS <nareshkumar.pbs@...adcom.com>,
        Selvin Xavier <selvin.xavier@...adcom.com>
Subject: linux-next: build failure after merge of the rdma tree

Hi all,

After merging the rdma tree, today's linux-next build (powerpc
allyesconfig) failed like this:

drivers/infiniband/hw/bnxt_re/qplib_res.c: In function '__free_pbl':
drivers/infiniband/hw/bnxt_re/qplib_res.c:78:2: error: implicit declaration of function 'vfree'; did you mean 'kfree'? [-Werror=implicit-function-declaration]
   78 |  vfree(pbl->pg_arr);
      |  ^~~~~
      |  kfree
drivers/infiniband/hw/bnxt_re/qplib_res.c: In function '__alloc_pbl':
drivers/infiniband/hw/bnxt_re/qplib_res.c:117:16: error: implicit declaration of function 'vmalloc'; did you mean 'kmalloc'? [-Werror=implicit-function-declaration]
  117 |  pbl->pg_arr = vmalloc(pages * sizeof(void *));
      |                ^~~~~~~
      |                kmalloc
drivers/infiniband/hw/bnxt_re/qplib_res.c:117:14: warning: assignment to 'void **' from 'int' makes pointer from integer without a cast [-Wint-conversion]
  117 |  pbl->pg_arr = vmalloc(pages * sizeof(void *));
      |              ^
drivers/infiniband/hw/bnxt_re/qplib_res.c:121:18: warning: assignment to 'dma_addr_t *' {aka 'long long unsigned int *'} from 'int' makes pointer from integer without a cast [-Wint-conversion]
  121 |  pbl->pg_map_arr = vmalloc(pages * sizeof(dma_addr_t));
      |                  ^

Caused by commit

  0c4dcd602817 ("RDMA/bnxt_re: Refactor hardware queue memory allocation")

I added the following fix for today:

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Wed, 26 Feb 2020 13:46:02 +1100
Subject: [PATCH] RDMA/bnxt_re: using vmalloc requires including vmalloc.h

Fixes: 0c4dcd602817 ("RDMA/bnxt_re: Refactor hardware queue memory allocation")
Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 drivers/infiniband/hw/bnxt_re/qplib_res.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/infiniband/hw/bnxt_re/qplib_res.c b/drivers/infiniband/hw/bnxt_re/qplib_res.c
index 4346b95963cf..fc5909c7f2e0 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_res.c
+++ b/drivers/infiniband/hw/bnxt_re/qplib_res.c
@@ -44,6 +44,7 @@
 #include <linux/inetdevice.h>
 #include <linux/dma-mapping.h>
 #include <linux/if_vlan.h>
+#include <linux/vmalloc.h>
 #include "roce_hsi.h"
 #include "qplib_res.h"
 #include "qplib_sp.h"
-- 
2.25.0

-- 
Cheers,
Stephen Rothwell

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