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Date: Mon, 4 Nov 2019 16:44:00 +0000
From: Jules Irenge <jbi.octave@...il.com>
To: outreachy-kernel@...glegroups.com
Cc: gregkh@...uxfoundation.org, devel@...verdev.osuosl.org,
linux-kernel@...r.kernel.org, Jules Irenge <jbi.octave@...il.com>
Subject: [PATCH] staging: rts5208: rewrite macro with GNU extension __auto_type
Rewrite macro function with GNU extension __auto_type
to remove issue detected by checkpatch tool.
CHECK: MACRO argument reuse - possible side-effects?
Signed-off-by: Jules Irenge <jbi.octave@...il.com>
---
drivers/staging/rts5208/rtsx_chip.h | 92 +++++++++++++++++------------
1 file changed, 55 insertions(+), 37 deletions(-)
diff --git a/drivers/staging/rts5208/rtsx_chip.h b/drivers/staging/rts5208/rtsx_chip.h
index bac65784d4a1..4b986d5c68da 100644
--- a/drivers/staging/rts5208/rtsx_chip.h
+++ b/drivers/staging/rts5208/rtsx_chip.h
@@ -386,23 +386,31 @@ struct zone_entry {
/* SD card */
#define CHK_SD(sd_card) (((sd_card)->sd_type & 0xFF) == TYPE_SD)
-#define CHK_SD_HS(sd_card) (CHK_SD(sd_card) && \
- ((sd_card)->sd_type & SD_HS))
-#define CHK_SD_SDR50(sd_card) (CHK_SD(sd_card) && \
- ((sd_card)->sd_type & SD_SDR50))
-#define CHK_SD_DDR50(sd_card) (CHK_SD(sd_card) && \
- ((sd_card)->sd_type & SD_DDR50))
-#define CHK_SD_SDR104(sd_card) (CHK_SD(sd_card) && \
- ((sd_card)->sd_type & SD_SDR104))
-#define CHK_SD_HCXC(sd_card) (CHK_SD(sd_card) && \
- ((sd_card)->sd_type & SD_HCXC))
-#define CHK_SD_HC(sd_card) (CHK_SD_HCXC(sd_card) && \
- ((sd_card)->capacity <= 0x4000000))
-#define CHK_SD_XC(sd_card) (CHK_SD_HCXC(sd_card) && \
- ((sd_card)->capacity > 0x4000000))
-#define CHK_SD30_SPEED(sd_card) (CHK_SD_SDR50(sd_card) || \
- CHK_SD_DDR50(sd_card) || \
- CHK_SD_SDR104(sd_card))
+#define CHK_SD_HS(sd_card)\
+ ({__auto_type _sd = sd_card; CHK_SD(_sd) && \
+ (_sd->sd_type & SD_HS); })
+#define CHK_SD_SDR50(sd_card)\
+ ({__auto_type _sd = sd_card; CHK_SD(_sd) && \
+ (_sd->sd_type & SD_SDR50); })
+#define CHK_SD_DDR50(sd_card)\
+ ({__auto_type _sd = sd_card; CHK_SD(_sd) && \
+ (_sd->sd_type & SD_DDR50); })
+#define CHK_SD_SDR104(sd_card)\
+ ({__auto_type _sd = sd_card; CHK_SD(_sd) && \
+ (_sd->sd_type & SD_SDR104); })
+#define CHK_SD_HCXC(sd_card)\
+ ({__auto_type _sd = sd_card; CHK_SD(_sd) && \
+ (_sd->sd_type & SD_HCXC); })
+#define CHK_SD_HC(sd_card)\
+ ({__auto_type _sd = sd_card; CHK_SD_HCXC(_sd) && \
+ (_sd->capacity <= 0x4000000); })
+#define CHK_SD_XC(sd_card)\
+ ({__auto_type _sd = sd_card; CHK_SD_HCXC(_sd) && \
+ (_sd->capacity > 0x4000000); })
+#define CHK_SD30_SPEED(sd_card)\
+ ({__auto_type _sd = sd_card; CHK_SD_SDR50(_sd) || \
+ CHK_SD_DDR50(_sd) || \
+ CHK_SD_SDR104(_sd); })
#define SET_SD(sd_card) ((sd_card)->sd_type = TYPE_SD)
#define SET_SD_HS(sd_card) ((sd_card)->sd_type |= SD_HS)
@@ -420,18 +428,24 @@ struct zone_entry {
/* MMC card */
#define CHK_MMC(sd_card) (((sd_card)->sd_type & 0xFF) == \
TYPE_MMC)
-#define CHK_MMC_26M(sd_card) (CHK_MMC(sd_card) && \
- ((sd_card)->sd_type & MMC_26M))
-#define CHK_MMC_52M(sd_card) (CHK_MMC(sd_card) && \
- ((sd_card)->sd_type & MMC_52M))
-#define CHK_MMC_4BIT(sd_card) (CHK_MMC(sd_card) && \
- ((sd_card)->sd_type & MMC_4BIT))
-#define CHK_MMC_8BIT(sd_card) (CHK_MMC(sd_card) && \
- ((sd_card)->sd_type & MMC_8BIT))
-#define CHK_MMC_SECTOR_MODE(sd_card) (CHK_MMC(sd_card) && \
- ((sd_card)->sd_type & MMC_SECTOR_MODE))
-#define CHK_MMC_DDR52(sd_card) (CHK_MMC(sd_card) && \
- ((sd_card)->sd_type & MMC_DDR52))
+#define CHK_MMC_26M(sd_card)\
+ ({__auto_type _sd = sd_card; CHK_MMC(_sd) && \
+ (_sd->sd_type & MMC_26M); })
+#define CHK_MMC_52M(sd_card)\
+ ({__auto_type _sd = sd_card; CHK_MMC(_sd) && \
+ (_sd->sd_type & MMC_52M); })
+#define CHK_MMC_4BIT(sd_card)\
+ ({__auto_type _sd = sd_card; CHK_MMC(_sd) && \
+ (_sd->sd_type & MMC_4BIT); })
+#define CHK_MMC_8BIT(sd_card)\
+ ({__auto_type _sd = sd_card; CHK_MMC(_sd) && \
+ (_sd->sd_type & MMC_8BIT); })
+#define CHK_MMC_SECTOR_MODE(sd_card)\
+ ({__auto_type _sd = sd_card; CHK_MMC(_sd) && \
+ (_sd->sd_type & MMC_SECTOR_MODE); })
+#define CHK_MMC_DDR52(sd_card)\
+ ({__auto_type _sd = sd_card; CHK_MMC(_sd) && \
+ (_sd->sd_type & MMC_DDR52); })
#define SET_MMC(sd_card) ((sd_card)->sd_type = TYPE_MMC)
#define SET_MMC_26M(sd_card) ((sd_card)->sd_type |= MMC_26M)
@@ -448,8 +462,9 @@ struct zone_entry {
#define CLR_MMC_SECTOR_MODE(sd_card) ((sd_card)->sd_type &= ~MMC_SECTOR_MODE)
#define CLR_MMC_DDR52(sd_card) ((sd_card)->sd_type &= ~MMC_DDR52)
-#define CHK_MMC_HS(sd_card) (CHK_MMC_52M(sd_card) && \
- CHK_MMC_26M(sd_card))
+#define CHK_MMC_HS(sd_card)\
+ ({__auto_type _sd = sd_card; CHK_MMC_52M(_sd) && \
+ CHK_MMC_26M(_sd); })
#define CLR_MMC_HS(sd_card) \
do { \
CLR_MMC_DDR52(sd_card); \
@@ -560,12 +575,15 @@ struct xd_info {
#define HG8BIT (MS_HG | MS_8BIT)
#define CHK_MSPRO(ms_card) (((ms_card)->ms_type & 0xFF) == TYPE_MSPRO)
-#define CHK_HG8BIT(ms_card) (CHK_MSPRO(ms_card) && \
- (((ms_card)->ms_type & HG8BIT) == HG8BIT))
-#define CHK_MSXC(ms_card) (CHK_MSPRO(ms_card) && \
- ((ms_card)->ms_type & MS_XC))
-#define CHK_MSHG(ms_card) (CHK_MSPRO(ms_card) && \
- ((ms_card)->ms_type & MS_HG))
+#define CHK_HG8BIT(ms_card)\
+ ({__auto_type _ms = ms_card; CHK_MSPRO(_ms) && \
+ ((_ms->ms_type & HG8BIT) == HG8BIT); })
+#define CHK_MSXC(ms_card)\
+ ({__auto_type _ms = ms_card; CHK_MSPRO(_ms) && \
+ ((_ms)->ms_type & MS_XC); })
+#define CHK_MSHG(ms_card)\
+ ({__auto_type _ms = ms_card; CHK_MSPRO(_ms) && \
+ ((_ms)->ms_type & MS_HG); })
#define CHK_MS8BIT(ms_card) (((ms_card)->ms_type & MS_8BIT))
#define CHK_MS4BIT(ms_card) (((ms_card)->ms_type & MS_4BIT))
--
2.17.1
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