Re: [meta-cgl][PATCH V2] ucarp: fix build error with gcc-10


Chen Qi
 

On 09/24/2020 01:43 PM, Khem Raj wrote:
On Wed, Sep 23, 2020 at 8:38 PM Chen Qi <Qi.Chen@...> wrote:
Add a patch to remove the useless '__packed' variable to avoid
multiple definition error with gcc10.
I wonder if the intention is to mark this structure as packed struct
then it should be replaced with __attribute__((packed))
It's possible, but I didn't look at the logic and I don't want to. Anyway, the variable never had any effect. So I figure it's safe to remove it, and this will not change any behavior.

Unfortunately, the codes are really old, and I cannot find a place to send the patch, not to mention to confirm this with its author :(

Regards,
Chen Qi

Signed-off-by: Chen Qi <Qi.Chen@...>
---
...001-ip_carp.h-remove-unused-__packed.patch | 31 +++++++++++++++++++
.../recipes-cgl/ucarp/ucarp_1.5.2.bb | 1 +
2 files changed, 32 insertions(+)
create mode 100644 meta-cgl-common/recipes-cgl/ucarp/ucarp/0001-ip_carp.h-remove-unused-__packed.patch

diff --git a/meta-cgl-common/recipes-cgl/ucarp/ucarp/0001-ip_carp.h-remove-unused-__packed.patch b/meta-cgl-common/recipes-cgl/ucarp/ucarp/0001-ip_carp.h-remove-unused-__packed.patch
new file mode 100644
index 0000000..496c20d
--- /dev/null
+++ b/meta-cgl-common/recipes-cgl/ucarp/ucarp/0001-ip_carp.h-remove-unused-__packed.patch
@@ -0,0 +1,31 @@
+From ad33498ac86fe2df0a100d17aa54ca8c30920d8b Mon Sep 17 00:00:00 2001
+From: Chen Qi <Qi.Chen@...>
+Date: Thu, 24 Sep 2020 11:30:08 +0800
+Subject: [PATCH] ip_carp.h: remove unused __packed
+
+This variable is useless and it's causing multiple definition
+error with gcc10, thus removing it.
+
+Upstream-Status: Pending
+
+Signed-off-by: Chen Qi <Qi.Chen@...>
+---
+ src/ip_carp.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/ip_carp.h b/src/ip_carp.h
+index 9504a8e..9dcf8cc 100644
+--- a/src/ip_carp.h
++++ b/src/ip_carp.h
+@@ -70,7 +70,7 @@ struct carp_header {
+ u_int16_t carp_cksum;
+ u_int32_t carp_counter[2];
+ unsigned char carp_md[20]; /* SHA1 HMAC */
+-} __packed;
++};
+
+ #define CARP_DFLTTL 255
+
+--
+2.17.1
+
diff --git a/meta-cgl-common/recipes-cgl/ucarp/ucarp_1.5.2.bb b/meta-cgl-common/recipes-cgl/ucarp/ucarp_1.5.2.bb
index d17baa0..c6fa901 100644
--- a/meta-cgl-common/recipes-cgl/ucarp/ucarp_1.5.2.bb
+++ b/meta-cgl-common/recipes-cgl/ucarp/ucarp_1.5.2.bb
@@ -17,6 +17,7 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=278a886e91f2f6c983ffdf040130cdc6"
SRC_URI = "http://download.pureftpd.org/pub/ucarp/${BPN}-${PV}.tar.gz \
file://ucarp-configure-sha1.patch \
file://ucarp-configure-snprintf.patch \
+ file://0001-ip_carp.h-remove-unused-__packed.patch \
file://ucarp.init \
file://vip-001.conf.example \
file://vip-common.conf \
--
2.17.1


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