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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20201029150809.13059608@canb.auug.org.au>
Date:   Thu, 29 Oct 2020 15:08:09 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: linux-next: build failure after merge of the akpm-current tree

Hi all,

After merging the akpm-current tree, today's linux-next build (powerpc
ppc64_defconfig) failed like this:

lib/math/div64.c: In function 'mul_u64_u64_div_u64':
lib/math/div64.c:202:6: error: implicit declaration of function 'ilog2' [-Werror=implicit-function-declaration]
  202 |  if (ilog2(a) + ilog2(b) > 62) {
      |      ^~~~~

Caused by commit

  4ec993a18ff6 ("kernel.h: Split out mathematical helpers")

I have applied the following patch for today:

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Thu, 29 Oct 2020 15:03:58 +1100
Subject: [PATCH] kernel.h: Split out mathematical helpers fix

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 lib/math/div64.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/math/div64.c b/lib/math/div64.c
index dcc826c40ca1..064d68a5391a 100644
--- a/lib/math/div64.c
+++ b/lib/math/div64.c
@@ -22,6 +22,7 @@
 #include <linux/export.h>
 #include <linux/math.h>
 #include <linux/math64.h>
+#include <linux/log2.h>
 
 /* Not needed on 64bit architectures */
 #if BITS_PER_LONG == 32
-- 
2.28.0

-- 
Cheers,
Stephen Rothwell

Content of type "application/pgp-signature" skipped