File 0029-super-intel-Fix-issue-with-abs-being-irrel... of Package mdadm

Overview Repositories Revisions Requests Users Attributes Meta

File 0029-super-intel-Fix-issue-with-abs-being-irrelevant.patch of Package mdadm (Revision 2c53f42bfee08de4de12e7c7c6e52d68)

Currently displaying revision 2c53f42bfee08de4de12e7c7c6e52d68 , Show latest

From a4f7290c20c2ff78328c9db0b18029165cfb05b2 Mon Sep 17 00:00:00 2001
From: Jes Sorensen <jsorensen@fb.com>
Date: Tue, 9 Jul 2019 13:26:08 -0400
Subject: [PATCH] super-intel: Fix issue with abs() being irrelevant
Git-commit: a4f7290c20c2ff78328c9db0b18029165cfb05b2
Patch-mainline: mdadm-4.1+
References: jsc#SLE-10078, jsc#SLE-9348

gcc9 complains about subtracting unsigned from unsigned and code
assuming the result can be negative.

Signed-off-by: Jes Sorensen <jsorensen@fb.com>
Signed-off-by: Coly Li <colyli@suse.de>

---
 super-intel.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/super-intel.c b/super-intel.c
index 4fd5e84..230e164 100644
--- a/super-intel.c
+++ b/super-intel.c
@@ -2875,7 +2875,7 @@ static unsigned long long calc_component_size(struct imsm_map *map,
 {
 	unsigned long long component_size;
 	unsigned long long dev_size = imsm_dev_size(dev);
-	unsigned long long calc_dev_size = 0;
+	long long calc_dev_size = 0;
 	unsigned int member_disks = imsm_num_data_members(map);
 
 	if (member_disks == 0)
@@ -2889,7 +2889,7 @@ static unsigned long long calc_component_size(struct imsm_map *map,
 	 * 2048 blocks per each device. If the difference is higher it means
 	 * that array size was expanded and num_data_stripes was not updated.
 	 */
-	if ((unsigned int)abs(calc_dev_size - dev_size) >
+	if (llabs(calc_dev_size - (long long)dev_size) >
 	    (1 << SECT_PER_MB_SHIFT) * member_disks) {
 		component_size = dev_size / member_disks;
 		dprintf("Invalid num_data_stripes in metadata; expected=%llu, found=%llu\n",
-- 
2.25.0

Places

File 0029-super-intel-Fix-issue-with-abs-being-irrelevant.patch of Package mdadm (Revision 2c53f42bfee08de4de12e7c7c6e52d68)

Places