Hi all, After merging the akpm tree, today's linux-next build (powerpc ppc64_defconfig) failed like this:
mm/madvise.c: In function '__do_sys_process_madvise': mm/madvise.c:1194:9: error: implicit declaration of function 'compat_import_iovec'; did you mean 'import_iovec'? [-Werror=implicit-function-declaration] 1194 | ret = compat_import_iovec(READ, | ^~~~~~~~~~~~~~~~~~~ | import_iovec Caused by commits b50ef3fed31c ("mm/madvise: introduce process_madvise() syscall: an external memory hinting API") 84b51d510a77 ("mm: do not use helper functions for process_madvise") interacting with commit e42ff3fae0a2 ("iov_iter: transparently handle compat iovecs in import_iovec") from the vfs tree. I have applied the folloing patch for today: From: Stephen Rothwell <s...@canb.auug.org.au> Date: Mon, 28 Sep 2020 21:14:11 +1000 Subject: [PATCH] fix up for "iov_iter: transparently handle compat iovecs in import_iovec" Signed-off-by: Stephen Rothwell <s...@canb.auug.org.au> --- mm/madvise.c | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) diff --git a/mm/madvise.c b/mm/madvise.c index 935dbc92e626..416a56b8e757 100644 --- a/mm/madvise.c +++ b/mm/madvise.c @@ -7,7 +7,6 @@ */ #include <linux/mman.h> -#include <linux/compat.h> #include <linux/pagemap.h> #include <linux/syscalls.h> #include <linux/mempolicy.h> @@ -1189,15 +1188,7 @@ SYSCALL_DEFINE5(process_madvise, int, pidfd, const struct iovec __user *, vec, goto out; } -#ifdef CONFIG_COMPAT - if (in_compat_syscall()) - ret = compat_import_iovec(READ, - (struct compat_iovec __user *)vec, vlen, - ARRAY_SIZE(iovstack), &iov, &iter); - else -#endif - ret = import_iovec(READ, vec, vlen, ARRAY_SIZE(iovstack), - &iov, &iter); + ret = import_iovec(READ, vec, vlen, ARRAY_SIZE(iovstack), &iov, &iter); if (ret < 0) goto out; -- 2.28.0 -- Cheers, Stephen Rothwell
pgpMixG4Tmm61.pgp
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