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From 5b47ca781fddf2704b55370acf7cc369ae049c64 Mon Sep 17 00:00:00 2001
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Message-Id: <5b47ca781fddf2704b55370acf7cc369ae049c64@dist-git>
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From: Marc Hartmayer <mhartmay@linux.ibm.com>
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Date: Wed, 10 Oct 2018 17:25:52 +0200
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Subject: [PATCH] virfile: fix cast-align error
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RHEL-7.7: https://bugzilla.redhat.com/show_bug.cgi?id=1632711
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RHEL-8.0: https://bugzilla.redhat.com/show_bug.cgi?id=1634782
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RHEL-7.6.z: https://bugzilla.redhat.com/show_bug.cgi?id=1635705
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On s390x the struct member f_type of statsfs is hard coded to 'unsigned
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int'. Change virFileIsSharedFixFUSE() to take a 'long long int' and use
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a temporary to avoid pointer-casting.
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This fixes the following error:
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../../src/util/virfile.c:3578:38: error: cast increases required alignment of target type [-Werror=cast-align]
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virFileIsSharedFixFUSE(path, (long *) &sb.f_type);
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Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
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Signed-off-by: Bjoern Walk <bwalk@linux.ibm.com>
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(cherry picked from commit 2b03534eeb2f3f41865538cd4c3e5d326260ad27)
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Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
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Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
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---
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src/util/virfile.c | 23 +++++++++++++----------
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1 file changed, 13 insertions(+), 10 deletions(-)
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diff --git a/src/util/virfile.c b/src/util/virfile.c
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index c87e26bf5b..46466ed136 100644
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--- a/src/util/virfile.c
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+++ b/src/util/virfile.c
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@@ -3542,7 +3542,7 @@ int virFilePrintf(FILE *fp, const char *msg, ...)
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static int
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virFileIsSharedFixFUSE(const char *path,
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- long *f_type)
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+ long long *f_type)
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{
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char *dirpath = NULL;
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const char **mounts = NULL;
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@@ -3612,6 +3612,7 @@ virFileIsSharedFSType(const char *path,
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char *dirpath, *p;
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struct statfs sb;
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int statfs_ret;
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+ long long f_type = 0;
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if (VIR_STRDUP(dirpath, path) < 0)
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return -1;
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@@ -3651,32 +3652,34 @@ virFileIsSharedFSType(const char *path,
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return -1;
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}
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- if (sb.f_type == FUSE_SUPER_MAGIC) {
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+ f_type = sb.f_type;
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+
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+ if (f_type == FUSE_SUPER_MAGIC) {
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VIR_DEBUG("Found FUSE mount for path=%s. Trying to fix it", path);
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- virFileIsSharedFixFUSE(path, (long *) &sb.f_type);
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+ virFileIsSharedFixFUSE(path, &f_type);
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}
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VIR_DEBUG("Check if path %s with FS magic %lld is shared",
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- path, (long long int)sb.f_type);
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+ path, f_type);
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if ((fstypes & VIR_FILE_SHFS_NFS) &&
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- (sb.f_type == NFS_SUPER_MAGIC))
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+ (f_type == NFS_SUPER_MAGIC))
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return 1;
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if ((fstypes & VIR_FILE_SHFS_GFS2) &&
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- (sb.f_type == GFS2_MAGIC))
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+ (f_type == GFS2_MAGIC))
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return 1;
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if ((fstypes & VIR_FILE_SHFS_OCFS) &&
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- (sb.f_type == OCFS2_SUPER_MAGIC))
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+ (f_type == OCFS2_SUPER_MAGIC))
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return 1;
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if ((fstypes & VIR_FILE_SHFS_AFS) &&
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- (sb.f_type == AFS_FS_MAGIC))
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+ (f_type == AFS_FS_MAGIC))
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return 1;
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if ((fstypes & VIR_FILE_SHFS_SMB) &&
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- (sb.f_type == SMB_SUPER_MAGIC))
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+ (f_type == SMB_SUPER_MAGIC))
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return 1;
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if ((fstypes & VIR_FILE_SHFS_CIFS) &&
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- (sb.f_type == CIFS_SUPER_MAGIC))
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+ (f_type == CIFS_SUPER_MAGIC))
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return 1;
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return 0;
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--
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2.21.0
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