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

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Message-ID: <20250213142804.4ba0e125@canb.auug.org.au>
Date: Thu, 13 Feb 2025 14:28:04 +1100
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Wei Liu <wei.liu@...nel.org>
Cc: Nuno Das Neves <nunodasneves@...ux.microsoft.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 hyperv tree

Hi all,

After merging the hyperv tree, today's linux-next build (x86_64
allmodconfig) failed like this:

In file included from include/asm-generic/bug.h:22,
                 from arch/x86/include/asm/bug.h:99,
                 from include/linux/bug.h:5,
                 from arch/x86/include/asm/paravirt.h:19,
                 from arch/x86/include/asm/irqflags.h:80,
                 from include/linux/irqflags.h:18,
                 from include/linux/spinlock.h:59,
                 from include/linux/mmzone.h:8,
                 from include/linux/gfp.h:7,
                 from include/linux/slab.h:16,
                 from include/linux/resource_ext.h:11,
                 from include/linux/acpi.h:13,
                 from drivers/hv/hv_common.c:16:
drivers/hv/hv_common.c: In function 'hv_get_partition_id':
include/linux/kern_levels.h:5:25: error: format '%lx' expects argument of type 'long unsigned int', but argument 2 has type 'int' [-Werror=format=]
    5 | #define KERN_SOH        "\001"          /* ASCII Start Of Header */
      |                         ^~~~~~
include/linux/printk.h:473:25: note: in definition of macro 'printk_index_wrap'
  473 |                 _p_func(_fmt, ##__VA_ARGS__);                           \
      |                         ^~~~
include/linux/printk.h:544:9: note: in expansion of macro 'printk'
  544 |         printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
      |         ^~~~~~
include/linux/kern_levels.h:11:25: note: in expansion of macro 'KERN_SOH'
   11 | #define KERN_ERR        KERN_SOH "3"    /* error conditions */
      |                         ^~~~~~~~
include/linux/printk.h:544:16: note: in expansion of macro 'KERN_ERR'
  544 |         printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
      |                ^~~~~~~~
drivers/hv/hv_common.c:304:17: note: in expansion of macro 'pr_err'
  304 |                 pr_err("Hyper-V: failed to get partition ID: %#lx\n",
      |                 ^~~~~~
cc1: all warnings being treated as errors

Caused by commit

  bc57d252ddf0 ("hyperv: Move hv_current_partition_id to arch-generic code")

I have used the hyperv tree from next-20250212.

-- 
Cheers,
Stephen Rothwell

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