From: "Krzysztof Wilczyński" <kw@linux.com>
To: Bjorn Helgaas <bhelgaas@google.com>
Cc: "Oliver O'Halloran" <oohall@gmail.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Tyrel Datwyler <tyreld@linux.ibm.com>,
Russell Currey <ruscur@russell.cc>,
Kurt Schwemmer <kurt.schwemmer@microsemi.com>,
Logan Gunthorpe <logang@deltatee.com>,
linux-pci@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Subject: [PATCH 01/11] PCI: Use sysfs_emit() and sysfs_emit_at() in "show" functions
Date: Mon, 10 May 2021 04:14:14 +0000 [thread overview]
Message-ID: <20210510041424.233565-1-kw@linux.com> (raw)
The sysfs_emit() and sysfs_emit_at() functions were introduced to make
it less ambiguous which function is preferred when writing to the output
buffer in a device attribute's "show" callback [1].
Convert the PCI sysfs object "show" functions from sprintf(), snprintf()
and scnprintf() to sysfs_emit() and sysfs_emit_at() accordingly, as the
latter is aware of the PAGE_SIZE buffer and correctly returns the number
of bytes written into the buffer.
No functional change intended.
[1] Documentation/filesystems/sysfs.rst
Related to:
commit ad025f8e46f3 ("PCI/sysfs: Use sysfs_emit() and sysfs_emit_at() in "show" functions")
Signed-off-by: Krzysztof Wilczyński <kw@linux.com>
---
drivers/pci/pci.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index b717680377a9..5ed316ea5831 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -6439,7 +6439,7 @@ static ssize_t resource_alignment_show(struct bus_type *bus, char *buf)
spin_lock(&resource_alignment_lock);
if (resource_alignment_param)
- count = scnprintf(buf, PAGE_SIZE, "%s", resource_alignment_param);
+ count = sysfs_emit(buf, "%s", resource_alignment_param);
spin_unlock(&resource_alignment_lock);
/*
--
2.31.1
next reply other threads:[~2021-05-10 4:14 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-10 4:14 Krzysztof Wilczyński [this message]
2021-05-10 4:14 ` [PATCH 02/11] PCI/AER: Use sysfs_emit() and sysfs_emit_at() in "show" functions Krzysztof Wilczyński
2021-05-10 4:14 ` [PATCH 03/11] PCI: " Krzysztof Wilczyński
2021-05-10 4:14 ` [PATCH 04/11] PCI/MSI: " Krzysztof Wilczyński
2021-05-10 4:14 ` [PATCH 05/11] PCI/IOV: " Krzysztof Wilczyński
2021-05-10 4:14 ` [PATCH 06/11] PCI/P2PDMA: " Krzysztof Wilczyński
2021-05-10 4:14 ` [PATCH 07/11] PCI/ASPM: " Krzysztof Wilczyński
2021-05-10 4:14 ` [PATCH 08/11] PCI: switchtec: " Krzysztof Wilczyński
2021-05-10 4:14 ` [PATCH 09/11] PCI: rpadlpar: " Krzysztof Wilczyński
2021-05-10 4:14 ` [PATCH 10/11] PCI: hotplug: " Krzysztof Wilczyński
2021-05-10 4:14 ` [PATCH 11/11] PCI: shpchp: " Krzysztof Wilczyński
2021-05-10 10:30 ` [PATCH 01/11] PCI: " Krzysztof Wilczyński
2021-05-10 15:57 ` Logan Gunthorpe
2021-05-13 12:49 ` Krzysztof Wilczyński
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