[kernel/f21] Add patch to fix ATA blacklist

Josh Boyer jwboyer at fedoraproject.org
Wed Oct 8 18:22:00 UTC 2014


commit 6c4ba8f67773ec96f5d63350bedae5f8c4dd636a
Author: Josh Boyer <jwboyer at fedoraproject.org>
Date:   Wed Oct 8 12:20:56 2014 -0400

    Add patch to fix ATA blacklist

 kernel.spec                         |    7 +++++
 libata-Un-break-ATA-blacklist.patch |   51 +++++++++++++++++++++++++++++++++++
 2 files changed, 58 insertions(+), 0 deletions(-)
---
diff --git a/kernel.spec b/kernel.spec
index acfc760..19263e9 100644
--- a/kernel.spec
+++ b/kernel.spec
@@ -627,6 +627,8 @@ Patch26029: KEYS-Reinstate-EPERM-for-a-key-type-name-beginning-w.patch
 
 Patch26030: GFS2-Make-rename-not-save-dirent-location.patch
 
+Patch26031: libata-Un-break-ATA-blacklist.patch
+
 # git clone ssh://git.fedorahosted.org/git/kernel-arm64.git, git diff master...devel
 Patch30000: kernel-arm64.patch
 
@@ -1367,6 +1369,8 @@ ApplyPatch KEYS-Reinstate-EPERM-for-a-key-type-name-beginning-w.patch
 
 ApplyPatch GFS2-Make-rename-not-save-dirent-location.patch
 
+ApplyPatch libata-Un-break-ATA-blacklist.patch
+
 %if 0%{?aarch64patches}
 ApplyPatch kernel-arm64.patch
 %ifnarch aarch64 # this is stupid, but i want to notice before secondary koji does.
@@ -2235,6 +2239,9 @@ fi
 #                                    ||----w |
 #                                    ||     ||
 %changelog
+* Wed Oct 08 2014 Josh Boyer <jwboyer at fedoraproject.org>
+- Add patch to fix ATA blacklist
+
 * Tue Oct 07 2014 Josh Boyer <jwboyer at fedoraproject.org>
 - Add patch to fix GFS2 regression (from Bob Peterson)
 
diff --git a/libata-Un-break-ATA-blacklist.patch b/libata-Un-break-ATA-blacklist.patch
new file mode 100644
index 0000000..e8d70ba
--- /dev/null
+++ b/libata-Un-break-ATA-blacklist.patch
@@ -0,0 +1,51 @@
+From: George Spelvin <linux at horizon.com>
+Date: Tue, 7 Oct 2014 07:26:38 -0400
+Subject: [PATCH] libata: Un-break ATA blacklist
+
+lib/glob.c provides a new glob_match() function, with arguments in
+(pattern, string) order.  It replaced a private function with arguments
+in (string, pattern) order, but I didn't swap the call site...
+
+The result was the entire ATA blacklist was effectively disabled.
+
+The lesson for today is "I f***ed up *how* badly *how* many months ago?",
+er, I mean "Nobody Tests RC Kernels On Legacy Hardware".
+
+This was not a subtle break, but it made it through an entire RC
+cycle unreported, presumably because all the people doing testing
+have full-featured hardware.
+
+(FWIW, the reason for the argument swap was because fnmatch() does it that
+way, and for a while implementing a full fnmatch() was being considered.)
+
+Fixes: 428ac5fc056e0 (libata: Use glob_match from lib/glob.c)
+Reported-by: Steven Honeyman <stevenhoneyman at gmail.com>
+Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=71371#c21
+Signed-off-by: George Spelvin <linux at horizon.com>
+Cc: <stable at vger.kernel.org> # 3.17
+Tested-by: Steven Honeyman <stevenhoneyman at gmail.com>
+Signed-off-by: Tejun Heo <tj at kernel.org>
+---
+ drivers/ata/libata-core.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
+index f3e7b9f894cd..6f674906c64c 100644
+--- a/drivers/ata/libata-core.c
++++ b/drivers/ata/libata-core.c
+@@ -4261,10 +4261,10 @@ static unsigned long ata_dev_blacklisted(const struct ata_device *dev)
+ 	ata_id_c_string(dev->id, model_rev, ATA_ID_FW_REV, sizeof(model_rev));
+ 
+ 	while (ad->model_num) {
+-		if (glob_match(model_num, ad->model_num)) {
++		if (glob_match(ad->model_num, model_num)) {
+ 			if (ad->model_rev == NULL)
+ 				return ad->horkage;
+-			if (glob_match(model_rev, ad->model_rev))
++			if (glob_match(ad->model_rev, model_rev))
+ 				return ad->horkage;
+ 		}
+ 		ad++;
+-- 
+1.9.3
+


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