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Subject[tip: x86/platform] x86/platform/uv: Add deprecated messages to /proc info leaves
The following commit has been merged into the x86/platform branch of tip:

Commit-ID: 148c277165cdc72d97d1711b9a1e566d66521828
Gitweb: https://git.kernel.org/tip/148c277165cdc72d97d1711b9a1e566d66521828
Author: Mike Travis <mike.travis@hpe.com>
AuthorDate: Fri, 27 Nov 2020 21:42:26 -06:00
Committer: Borislav Petkov <bp@suse.de>
CommitterDate: Mon, 07 Dec 2020 20:03:09 +01:00

x86/platform/uv: Add deprecated messages to /proc info leaves

Add "deprecated" message to any access to old /proc/sgi_uv/* leaves.

[ bp: Do not have a trailing function opening brace and the arguments
continuing on the next line and align them on the opening brace. ]

Signed-off-by: Mike Travis <mike.travis@hpe.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Steve Wahl <steve.wahl@hpe.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lkml.kernel.org/r/20201128034227.120869-5-mike.travis@hpe.com
---
arch/x86/kernel/apic/x2apic_uv_x.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 4874603..d75e1d9 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -1615,21 +1615,30 @@ static void check_efi_reboot(void)
reboot_type = BOOT_ACPI;
}

-/* Setup user proc fs files */
+/*
+ * User proc fs file handling now deprecated.
+ * Recommend using /sys/firmware/sgi_uv/... instead.
+ */
static int __maybe_unused proc_hubbed_show(struct seq_file *file, void *data)
{
+ pr_notice_once("%s: using deprecated /proc/sgi_uv/hubbed, use /sys/firmware/sgi_uv/hub_type\n",
+ current->comm);
seq_printf(file, "0x%x\n", uv_hubbed_system);
return 0;
}

static int __maybe_unused proc_hubless_show(struct seq_file *file, void *data)
{
+ pr_notice_once("%s: using deprecated /proc/sgi_uv/hubless, use /sys/firmware/sgi_uv/hubless\n",
+ current->comm);
seq_printf(file, "0x%x\n", uv_hubless_system);
return 0;
}

static int __maybe_unused proc_archtype_show(struct seq_file *file, void *data)
{
+ pr_notice_once("%s: using deprecated /proc/sgi_uv/archtype, use /sys/firmware/sgi_uv/archtype\n",
+ current->comm);
seq_printf(file, "%s/%s\n", uv_archtype, oem_table_id);
return 0;
}
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