Blame SOURCES/kvm-qemu-nbd-Rename-exp-variable-clashing-with-math-exp-.patch

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From b7bec5a423cc8bb7792e231e3d81d015d9278d91 Mon Sep 17 00:00:00 2001
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From: John Snow <jsnow@redhat.com>
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Date: Wed, 27 Mar 2019 17:22:25 +0100
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Subject: [PATCH 086/163] qemu-nbd: Rename 'exp' variable clashing with
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 math::exp() symbol
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: John Snow <jsnow@redhat.com>
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Message-id: <20190327172308.31077-13-jsnow@redhat.com>
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Patchwork-id: 85184
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O-Subject: [RHEL-7.7 qemu-kvm-rhev PATCH 12/55] qemu-nbd: Rename 'exp' variable clashing with math::exp() symbol
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Bugzilla: 1691009
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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RH-Acked-by: Max Reitz <mreitz@redhat.com>
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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From: Philippe Mathieu-Daudé <philmd@redhat.com>
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The use of a variable named 'exp' prevents includes to import <math.h>.
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Rename it to avoid:
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  qemu-nbd.c:64:19: error: ‘exp’ redeclared as different kind of symbol
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   static NBDExport *exp;
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                     ^~~
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  In file included from /usr/include/features.h:428,
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                   from /usr/include/bits/libc-header-start.h:33,
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                   from /usr/include/stdint.h:26,
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                   from /usr/lib/gcc/x86_64-redhat-linux/8/include/stdint.h:9,
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                   from /source/qemu/include/qemu/osdep.h:80,
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                   from /source/qemu/qemu-nbd.c:19:
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  /usr/include/bits/mathcalls.h:95:1: note: previous declaration of ‘exp’ was here
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    __MATHCALL_VEC (exp,, (_Mdouble_ __x));
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    ^~~~~~~~~~~~~~
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Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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Reviewed-by: Eric Blake <eblake@redhat.com>
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Message-Id: <20190111163519.11457-1-philmd@redhat.com>
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Signed-off-by: Eric Blake <eblake@redhat.com>
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(cherry picked from commit 9d97658020db922b68da05faadcdd61f49fbbdc7)
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Signed-off-by: John Snow <jsnow@redhat.com>
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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 qemu-nbd.c | 23 ++++++++++-------------
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 1 file changed, 10 insertions(+), 13 deletions(-)
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diff --git a/qemu-nbd.c b/qemu-nbd.c
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index 652199c..c37defb 100644
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--- a/qemu-nbd.c
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+++ b/qemu-nbd.c
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@@ -61,7 +61,7 @@
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 #define MBR_SIZE 512
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-static NBDExport *exp;
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+static NBDExport *export;
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 static int verbose;
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 static char *srcpath;
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 static SocketAddress *saddr;
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@@ -335,7 +335,7 @@ static int nbd_can_accept(void)
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     return state == RUNNING && nb_fds < shared;
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 }
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-static void nbd_export_closed(NBDExport *exp)
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+static void nbd_export_closed(NBDExport *export)
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 {
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     assert(state == TERMINATING);
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     state = TERMINATED;
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@@ -1017,14 +1017,11 @@ int main(int argc, char **argv)
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         }
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     }
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-    exp = nbd_export_new(bs, dev_offset, fd_size, nbdflags, nbd_export_closed,
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-                         writethrough, NULL, &local_err);
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-    if (!exp) {
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-        error_report_err(local_err);
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-        exit(EXIT_FAILURE);
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-    }
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-    nbd_export_set_name(exp, export_name);
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-    nbd_export_set_description(exp, export_description);
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+    export = nbd_export_new(bs, dev_offset, fd_size, nbdflags,
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+                            nbd_export_closed, writethrough,
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+                            NULL, &error_fatal);
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+    nbd_export_set_name(export, export_name);
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+    nbd_export_set_description(export, export_description);
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     if (device) {
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 #if HAVE_NBD_DEVICE
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@@ -1061,9 +1058,9 @@ int main(int argc, char **argv)
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         main_loop_wait(false);
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         if (state == TERMINATE) {
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             state = TERMINATING;
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-            nbd_export_close(exp);
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-            nbd_export_put(exp);
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-            exp = NULL;
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+            nbd_export_close(export);
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+            nbd_export_put(export);
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+            export = NULL;
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         }
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     } while (state != TERMINATED);
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-- 
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1.8.3.1
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