linux-kernel - linux-next: build failure after merge of the mfd tree

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Date:   Mon, 4 Dec 2017 14:19:56 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Lee Jones <lee.jones@...aro.org>, Greg KH <greg@...ah.com>
Cc:     Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Rui Feng <rui_feng@...lsil.com.cn>,
        Daniel Bristot de Oliveira <bristot@...hat.com>,
        Perry Yuan <perry_yuan@...l.com>
Subject: linux-next: build failure after merge of the mfd tree

Hi Lee,

After merging the mfd tree, today's linux-next build (powerpc
allyesconfig) failed like this:

drivers/staging/rts5208/sd.o: In function `.sd_power_off_card3v3':
(.text+0x5760): multiple definition of `.sd_power_off_card3v3'
drivers/misc/cardreader/rtsx_pcr.o:(.text+0x4630): first defined here
drivers/staging/rts5208/sd.o:(.opd+0x378): multiple definition of `sd_power_off_card3v3'
drivers/misc/cardreader/rtsx_pcr.o:(.opd+0x4f8): first defined here
drivers/staging/rts5208/ms.o: In function `.ms_power_off_card3v3':
(.text+0x5e70): multiple definition of `.ms_power_off_card3v3'
drivers/misc/cardreader/rtsx_pcr.o:(.text+0x46e0): first defined here
drivers/staging/rts5208/ms.o:(.opd+0x360): multiple definition of `ms_power_off_card3v3'
drivers/misc/cardreader/rtsx_pcr.o:(.opd+0x510): first defined here


Caused by commit

  5da4e04ae480 ("misc: rtsx: Add support for RTS5260")

I added the following fix patch:

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Mon, 4 Dec 2017 14:10:34 +1100
Subject: [PATCH] misc: rtsx: fix symbol clashes

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 drivers/misc/cardreader/rts5260.c  | 4 ++--
 drivers/misc/cardreader/rtsx_pcr.c | 4 ++--
 drivers/misc/cardreader/rtsx_pcr.h | 4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/misc/cardreader/rts5260.c b/drivers/misc/cardreader/rts5260.c
index 3b308640282d..07cb93abf685 100644
--- a/drivers/misc/cardreader/rts5260.c
+++ b/drivers/misc/cardreader/rts5260.c
@@ -426,9 +426,9 @@ void rts5260_process_ocp(struct rtsx_pcr *pcr)
 	rtsx_pci_get_ocpstat(pcr, &pcr->ocp_stat);
 	rts5260_get_ocpstat2(pcr, &pcr->ocp_stat2);
 	if (pcr->card_exist & SD_EXIST)
-		sd_power_off_card3v3(pcr);
+		rtsx_sd_power_off_card3v3(pcr);
 	else if (pcr->card_exist & MS_EXIST)
-		ms_power_off_card3v3(pcr);
+		rtsx_ms_power_off_card3v3(pcr);
 
 	if (!(pcr->card_exist & MS_EXIST) && !(pcr->card_exist & SD_EXIST)) {
 		if ((pcr->ocp_stat & (SD_OC_NOW | SD_OC_EVER |
diff --git a/drivers/misc/cardreader/rtsx_pcr.c b/drivers/misc/cardreader/rtsx_pcr.c
index 99adc67bbf73..5345170fc57b 100644
--- a/drivers/misc/cardreader/rtsx_pcr.c
+++ b/drivers/misc/cardreader/rtsx_pcr.c
@@ -1208,7 +1208,7 @@ void rtsx_pci_clear_ocpstat(struct rtsx_pcr *pcr)
 	}
 }
 
-int sd_power_off_card3v3(struct rtsx_pcr *pcr)
+int rtsx_sd_power_off_card3v3(struct rtsx_pcr *pcr)
 {
 	rtsx_pci_write_register(pcr, CARD_CLK_EN, SD_CLK_EN |
 		MS_CLK_EN | SD40_CLK_EN, 0);
@@ -1223,7 +1223,7 @@ int sd_power_off_card3v3(struct rtsx_pcr *pcr)
 	return 0;
 }
 
-int ms_power_off_card3v3(struct rtsx_pcr *pcr)
+int rtsx_ms_power_off_card3v3(struct rtsx_pcr *pcr)
 {
 	rtsx_pci_write_register(pcr, CARD_CLK_EN, SD_CLK_EN |
 		MS_CLK_EN | SD40_CLK_EN, 0);
diff --git a/drivers/misc/cardreader/rtsx_pcr.h b/drivers/misc/cardreader/rtsx_pcr.h
index c544e35d0154..6ea1655db0bb 100644
--- a/drivers/misc/cardreader/rtsx_pcr.h
+++ b/drivers/misc/cardreader/rtsx_pcr.h
@@ -107,7 +107,7 @@ void rtsx_pci_disable_ocp(struct rtsx_pcr *pcr);
 void rtsx_pci_enable_ocp(struct rtsx_pcr *pcr);
 int rtsx_pci_get_ocpstat(struct rtsx_pcr *pcr, u8 *val);
 void rtsx_pci_clear_ocpstat(struct rtsx_pcr *pcr);
-int sd_power_off_card3v3(struct rtsx_pcr *pcr);
-int ms_power_off_card3v3(struct rtsx_pcr *pcr);
+int rtsx_sd_power_off_card3v3(struct rtsx_pcr *pcr);
+int rtsx_ms_power_off_card3v3(struct rtsx_pcr *pcr);
 
 #endif
-- 
2.15.0

-- 
Cheers,
Stephen Rothwell