Subject: linux-next: build warning after merge of the vfs tree

From: Stephen Rothwell <[email-masked]>
Date: Tue, 19 Jun 2018 11:53:35 +1000

Hi all,

After merging the vfs tree, today's linux-next build (powerpc
ppc64_defconfig) produced this warning:

In file included from arch/powerpc/include/asm/thread_info.h:27:0,
                 from include/linux/thread_info.h:38,
                 from include/asm-generic/preempt.h:5,
                 from ./arch/powerpc/include/generated/asm/preempt.h:1,
                 from include/linux/preempt.h:81,
                 from include/linux/spinlock.h:51,
                 from include/linux/wait.h:9,
                 from include/linux/wait_bit.h:8,
                 from include/linux/fs.h:6,
                 from include/uapi/linux/aio_abi.h:31,
                 from include/linux/syscalls.h:74,
                 from fs/statfs.c:2:
fs/statfs.c: In function 'fsinfo_generic_limits':
arch/powerpc/include/asm/page.h:38:20: warning: large integer implicitly truncated to unsigned type [-Woverflow]
 #define PAGE_SIZE  (ASM_CONST(1) << PAGE_SHIFT)
                    ^
fs/statfs.c:448:25: note: in expansion of macro 'PAGE_SIZE'
  lim->max_symlink_len = PAGE_SIZE;
                         ^~~~~~~~~

Introduced by commit

  4afa2cf6f155 ("fsinfo: Add a system call to allow querying of filesystem information")

-- 
Cheers,
Stephen Rothwell