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authorFlorian Fainelli <florian@openwrt.org>2012-12-10 15:04:10 +0000
committerFlorian Fainelli <florian@openwrt.org>2012-12-10 15:04:10 +0000
commit374a72411a75356ad209eb52164c1d7c3112822a (patch)
tree2047e2c76e3f4e23b5fd8157420ebccf7b41bfd5
parentc1c6a23f1334265e2571fbf4fad6a448cefe7f65 (diff)
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generic/kernel: add a fix for a common MIPS build failure.
Signed-off-by: Florian Fainelli <florian@openwrt.org> SVN-Revision: 34602
-rw-r--r--target/linux/generic/patches-3.7/067-mips_mt_fix_uidgid_strict_type_check.patch46
1 files changed, 46 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.7/067-mips_mt_fix_uidgid_strict_type_check.patch b/target/linux/generic/patches-3.7/067-mips_mt_fix_uidgid_strict_type_check.patch
new file mode 100644
index 0000000000..367c848b9d
--- /dev/null
+++ b/target/linux/generic/patches-3.7/067-mips_mt_fix_uidgid_strict_type_check.patch
@@ -0,0 +1,46 @@
+From 0714f2ec1e950d7b825093d05ae8eacf1d66ce58 Mon Sep 17 00:00:00 2001
+From: Florian Fainelli <florian@openwrt.org>
+Date: Mon, 10 Dec 2012 15:52:07 +0100
+Subject: [PATCH 3.7-rc8] MIPS: MT: fix build with CONFIG_UIDGID_STRICT_TYPE_CHECKS=y
+
+When CONFIG_UIDGID_STRICT_TYPE_CHECKS is enabled, plain integer checking
+between different uids/gids is explicitely turned into a build failure
+by making the k{uid,gid}_t types a structure containing a value:
+
+arch/mips/kernel/mips-mt-fpaff.c: In function 'check_same_owner':
+arch/mips/kernel/mips-mt-fpaff.c:53:22: error: invalid operands to
+binary == (have 'kuid_t' and 'kuid_t')
+arch/mips/kernel/mips-mt-fpaff.c:54:15: error: invalid operands to
+binary == (have 'kuid_t' and 'kuid_t')
+
+This problem got introduced with commit 17c04139 (MIPS: MT: Fix FPU affinity.)
+
+In order to ensure proper comparison between uids, using the helper
+function uid_eq() which performs the right thing whenever this config
+option is turned on or off.
+
+Signed-off-by: Florian Fainelli <florian@openwrt.org>
+---
+Ralf, I think you might want to sneak this into 3.7-rc8 if possible at all.
+
+ arch/mips/kernel/mips-mt-fpaff.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/arch/mips/kernel/mips-mt-fpaff.c b/arch/mips/kernel/mips-mt-fpaff.c
+index 33f63ba..fd814e0 100644
+--- a/arch/mips/kernel/mips-mt-fpaff.c
++++ b/arch/mips/kernel/mips-mt-fpaff.c
+@@ -50,8 +50,8 @@ static bool check_same_owner(struct task_struct *p)
+
+ rcu_read_lock();
+ pcred = __task_cred(p);
+- match = (cred->euid == pcred->euid ||
+- cred->euid == pcred->uid);
++ match = (uid_eq(cred->euid, pcred->euid) ||
++ uid_eq(cred->euid, pcred->uid));
+ rcu_read_unlock();
+ return match;
+ }
+--
+1.7.10.4
+