linux-kernel - [PATCH 5.4 233/434] nvmem: core: fix nvmem_cell

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Date:   Sun, 29 Dec 2019 18:24:46 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, kbuild test robot <lkp@...el.com>,
        Han Nandor <nandor.han@...sala.com>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Sebastian Reichel <sebastian.reichel@...labora.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.4 233/434] nvmem: core: fix nvmem_cell_write inline function

From: Sebastian Reichel <sebastian.reichel@...labora.com>

[ Upstream commit 9b8303fc6efa724bd6a90656434fbde2cc6ceb2c ]

nvmem_cell_write's buf argument uses different types based on
the configuration of CONFIG_NVMEM. The function prototype for
enabled NVMEM uses 'void *' type, but the static dummy function
for disabled NVMEM uses 'const char *' instead. Fix the different
behaviour by always expecting a 'void *' typed buf argument.

Fixes: 7a78a7f7695b ("power: reset: nvmem-reboot-mode: use NVMEM as reboot mode write interface")
Reported-by: kbuild test robot <lkp@...el.com>
Cc: Han Nandor <nandor.han@...sala.com>
Cc: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@...labora.com>
Reviewed-By: Han Nandor <nandor.han@...sala.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Link: https://lore.kernel.org/r/20191029114240.14905-2-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 include/linux/nvmem-consumer.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/nvmem-consumer.h b/include/linux/nvmem-consumer.h
index 8f8be5b00060..5c17cb733224 100644
--- a/include/linux/nvmem-consumer.h
+++ b/include/linux/nvmem-consumer.h
@@ -118,7 +118,7 @@ static inline void *nvmem_cell_read(struct nvmem_cell *cell, size_t *len)
 }
 
 static inline int nvmem_cell_write(struct nvmem_cell *cell,
-				    const char *buf, size_t len)
+				   void *buf, size_t len)
 {
 	return -EOPNOTSUPP;
 }
-- 
2.20.1