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Date: Wed, 22 Jul 2015 19:00:48 -0700 From: Kamal Mostafa <kamal@...onical.com> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org, kernel-team@...ts.ubuntu.com Cc: Konstantin Khlebnikov <khlebnikov@...dex-team.ru>, Grant Likely <grant.likely@...aro.org>, Kamal Mostafa <kamal@...onical.com> Subject: [PATCH 3.13.y-ckt 130/132] of: return NUMA_NO_NODE from fallback of_node_to_nid() 3.13.11-ckt24 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Konstantin Khlebnikov <khlebnikov@...dex-team.ru> commit c8fff7bc5bba6bd59cad40441c189c4efe7190f6 upstream. Node 0 might be offline as well as any other numa node, in this case kernel cannot handle memory allocation and crashes. Signed-off-by: Konstantin Khlebnikov <khlebnikov@...dex-team.ru> Fixes: 0c3f061c195c ("of: implement of_node_to_nid as a weak function") Signed-off-by: Grant Likely <grant.likely@...aro.org> Signed-off-by: Kamal Mostafa <kamal@...onical.com> --- drivers/of/base.c | 2 +- include/linux/of.h | 5 ++++- 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/of/base.c b/drivers/of/base.c index 6c0dcf5..6996c77 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -77,7 +77,7 @@ EXPORT_SYMBOL(of_n_size_cells); #ifdef CONFIG_NUMA int __weak of_node_to_nid(struct device_node *np) { - return numa_node_id(); + return NUMA_NO_NODE; } #endif diff --git a/include/linux/of.h b/include/linux/of.h index 6e47b7f..bb7a1a9 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -553,7 +553,10 @@ static inline const char *of_prop_next_string(struct property *prop, #if defined(CONFIG_OF) && defined(CONFIG_NUMA) extern int of_node_to_nid(struct device_node *np); #else -static inline int of_node_to_nid(struct device_node *device) { return 0; } +static inline int of_node_to_nid(struct device_node *device) +{ + return NUMA_NO_NODE; +} #endif /** -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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