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Subject[PATCH 2/2] x86/amd_nb: Cleanup init path
Date
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
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