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From: Borislav Petkov <bp@alien8.de>
To: Ingo Molnar <mingo@kernel.org>
Cc: Tony Battersby <tonyb@cybernetics.com>,
	LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH 2/2] x86/amd_nb: Cleanup init path
Date: Thu, 16 Jun 2016 19:13:50 +0200	[thread overview]
Message-ID: <1466097230-5333-3-git-send-email-bp@alien8.de> (raw)
In-Reply-To: <1466097230-5333-1-git-send-email-bp@alien8.de>

From: Borislav Petkov <bp@suse.de>

The initcall had unnecessary pr_notice() messages which are useless
noise on distro kernels.

Also, push the GART init error message where it belongs, *after* the
check whether the current hw we're loaded on, supports GART at all.

Signed-off-by: Borislav Petkov <bp@suse.de>
---
 arch/x86/kernel/amd_nb.c | 37 ++++++++++++++-----------------------
 1 file changed, 14 insertions(+), 23 deletions(-)

diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c
index e991d5c8bb3a..e45ec2b4e15e 100644
--- a/arch/x86/kernel/amd_nb.c
+++ b/arch/x86/kernel/amd_nb.c
@@ -219,24 +219,22 @@ int amd_set_subcaches(int cpu, unsigned long mask)
 	return 0;
 }
 
-static int amd_cache_gart(void)
+static void amd_cache_gart(void)
 {
 	u16 i;
 
-       if (!amd_nb_has_feature(AMD_NB_GART))
-               return 0;
-
-       flush_words = kmalloc(amd_nb_num() * sizeof(u32), GFP_KERNEL);
-       if (!flush_words) {
-               amd_northbridges.flags &= ~AMD_NB_GART;
-               return -ENOMEM;
-       }
+	if (!amd_nb_has_feature(AMD_NB_GART))
+		return;
 
-       for (i = 0; i != amd_nb_num(); i++)
-               pci_read_config_dword(node_to_amd_nb(i)->misc, 0x9c,
-                                     &flush_words[i]);
+	flush_words = kmalloc(amd_nb_num() * sizeof(u32), GFP_KERNEL);
+	if (!flush_words) {
+		amd_northbridges.flags &= ~AMD_NB_GART;
+		pr_notice("Cannot initialize GART flush words, GART support disabled\n");
+		return;
+	}
 
-       return 0;
+	for (i = 0; i != amd_nb_num(); i++)
+		pci_read_config_dword(node_to_amd_nb(i)->misc, 0x9c, &flush_words[i]);
 }
 
 void amd_flush_garts(void)
@@ -278,17 +276,10 @@ EXPORT_SYMBOL_GPL(amd_flush_garts);
 
 static __init int init_amd_nbs(void)
 {
-	int err = 0;
+	amd_cache_northbridges();
+	amd_cache_gart();
 
-	err = amd_cache_northbridges();
-
-	if (err < 0)
-		pr_notice("Cannot enumerate AMD northbridges\n");
-
-	if (amd_cache_gart() < 0)
-		pr_notice("Cannot initialize GART flush words, GART support disabled\n");
-
-	return err;
+	return 0;
 }
 
 /* This has to go after the PCI subsystem */
-- 
2.7.3

  parent reply	other threads:[~2016-06-16 17:13 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-16 17:13 [PATCH 0/2] x86/amd_nb: Two fixes Borislav Petkov
2016-06-16 17:13 ` [PATCH 1/2] x86/amd_nb: Return negative value when no northbridges Borislav Petkov
2016-07-01  7:40   ` [tip:x86/urgent] x86/amd_nb: Fix boot crash on non-AMD systems tip-bot for Borislav Petkov
2016-06-16 17:13 ` Borislav Petkov [this message]
2016-07-01  7:46   ` [tip:x86/cpu] x86/amd_nb: Clean up init path tip-bot for Borislav Petkov

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