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
next prev 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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