[dpdk-stable] patch 'pci: fix parsing of address without function number' has been queued to stable release 18.08.1

[Kevin Traynor]

Hi,

FYI, your patch has been queued to stable release 18.08.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 11/29/18. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the patch applied
to the branch. If the code is different (ie: not only metadata diffs), due for example to
a change in context or macro names, please double check it.

Thanks.

Kevin Traynor

---
>From bd2f855f1def22d267469acab5952f0582b3bb24 Mon Sep 17 00:00:00 2001
From: Thomas Monjalon <thomas at monjalon.net>
Date: Mon, 12 Nov 2018 00:58:56 +0100
Subject: [PATCH] pci: fix parsing of address without function number

[ upstream commit 31f19a9beb8d88b67be6e469404081eb834d199c ]

If the last part of the PCI address (function number) is missing,
the parsing was successful, assuming function 0.
The call to strtoul is not returning an error in such a case,
so an explicit check is inserted before.

This bug has always been there in older parsing macros:
	- GET_PCIADDR_FIELD
	- GET_BLACKLIST_FIELD

Fixes: af75078fece3 ("first public release")

Reported-by: Wisam Jaddo <wisamm at mellanox.com>
Signed-off-by: Thomas Monjalon <thomas at monjalon.net>
Acked-by: Gaetan Rivet <gaetan.rivet at 6wind.com>
---
 lib/librte_pci/rte_pci.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/librte_pci/rte_pci.c b/lib/librte_pci/rte_pci.c
index 530738dbd..f400178bb 100644
--- a/lib/librte_pci/rte_pci.c
+++ b/lib/librte_pci/rte_pci.c
@@ -31,4 +31,8 @@ get_u8_pciaddr_field(const char *in, void *_u8, char dlm)
 	char *end;
 
+	/* empty string is an error though strtoul() returns 0 */
+	if (*in == '\0')
+		return NULL;
+
 	errno = 0;
 	val = strtoul(in, &end, 16);
-- 
2.19.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2018-11-23 10:22:55.801130165 +0000
+++ 0060-pci-fix-parsing-of-address-without-function-number.patch	2018-11-23 10:22:54.000000000 +0000
@@ -1,8 +1,10 @@
-From 31f19a9beb8d88b67be6e469404081eb834d199c Mon Sep 17 00:00:00 2001
+From bd2f855f1def22d267469acab5952f0582b3bb24 Mon Sep 17 00:00:00 2001
 From: Thomas Monjalon <thomas at monjalon.net>
 Date: Mon, 12 Nov 2018 00:58:56 +0100
 Subject: [PATCH] pci: fix parsing of address without function number
 
+[ upstream commit 31f19a9beb8d88b67be6e469404081eb834d199c ]
+
 If the last part of the PCI address (function number) is missing,
 the parsing was successful, assuming function 0.
 The call to strtoul is not returning an error in such a case,
@@ -13,7 +15,6 @@
 	- GET_BLACKLIST_FIELD
 
 Fixes: af75078fece3 ("first public release")
-Cc: stable at dpdk.org
 
 Reported-by: Wisam Jaddo <wisamm at mellanox.com>
 Signed-off-by: Thomas Monjalon <thomas at monjalon.net>