drivers/soc/bcm/bcm63xx/bcm-pmb.c:103:65: sparse: sparse: cast to restricted __be32
From: kernel test robot
Date: Wed Jul 19 2023 - 16:49:04 EST
Hi William,
FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: bfa3037d828050896ae52f6467b6ca2489ae6fb1
commit: 7bb49d774f481fdd7bd053e034e4d206770fda04 arm64: bcmbca: Make BCM4908 drivers depend on ARCH_BCMBCA
date: 11 months ago
config: arm64-randconfig-r092-20230720 (https://download.01.org/0day-ci/archive/20230720/202307200429.ZJZG9V9A-lkp@xxxxxxxxx/config)
compiler: aarch64-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230720/202307200429.ZJZG9V9A-lkp@xxxxxxxxx/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202307200429.ZJZG9V9A-lkp@xxxxxxxxx/
sparse warnings: (new ones prefixed by >>)
>> drivers/soc/bcm/bcm63xx/bcm-pmb.c:103:65: sparse: sparse: cast to restricted __be32
>> drivers/soc/bcm/bcm63xx/bcm-pmb.c:103:65: sparse: sparse: cast to restricted __be32
>> drivers/soc/bcm/bcm63xx/bcm-pmb.c:103:65: sparse: sparse: cast to restricted __be32
>> drivers/soc/bcm/bcm63xx/bcm-pmb.c:103:65: sparse: sparse: cast to restricted __be32
>> drivers/soc/bcm/bcm63xx/bcm-pmb.c:103:65: sparse: sparse: cast to restricted __be32
>> drivers/soc/bcm/bcm63xx/bcm-pmb.c:103:65: sparse: sparse: cast to restricted __be32
>> drivers/soc/bcm/bcm63xx/bcm-pmb.c:103:45: sparse: sparse: cast to restricted __le32
>> drivers/soc/bcm/bcm63xx/bcm-pmb.c:115:36: sparse: sparse: restricted __le32 degrades to integer
>> drivers/soc/bcm/bcm63xx/bcm-pmb.c:115:55: sparse: sparse: restricted __be32 degrades to integer
vim +103 drivers/soc/bcm/bcm63xx/bcm-pmb.c
8bcac4011ebe0db Rafał Miłecki 2020-12-14 90
8bcac4011ebe0db Rafał Miłecki 2020-12-14 91 static int bcm_pmb_bpcm_read(struct bcm_pmb *pmb, int bus, u8 device,
8bcac4011ebe0db Rafał Miłecki 2020-12-14 92 int offset, u32 *val)
8bcac4011ebe0db Rafał Miłecki 2020-12-14 93 {
8bcac4011ebe0db Rafał Miłecki 2020-12-14 94 void __iomem *base = pmb->base + bus * 0x20;
8bcac4011ebe0db Rafał Miłecki 2020-12-14 95 unsigned long flags;
8bcac4011ebe0db Rafał Miłecki 2020-12-14 96 int err;
8bcac4011ebe0db Rafał Miłecki 2020-12-14 97
8bcac4011ebe0db Rafał Miłecki 2020-12-14 98 spin_lock_irqsave(&pmb->lock, flags);
8bcac4011ebe0db Rafał Miłecki 2020-12-14 99 err = bpcm_rd(base, device, offset, val);
8bcac4011ebe0db Rafał Miłecki 2020-12-14 100 spin_unlock_irqrestore(&pmb->lock, flags);
8bcac4011ebe0db Rafał Miłecki 2020-12-14 101
8bcac4011ebe0db Rafał Miłecki 2020-12-14 102 if (!err)
8bcac4011ebe0db Rafał Miłecki 2020-12-14 @103 *val = pmb->little_endian ? le32_to_cpu(*val) : be32_to_cpu(*val);
8bcac4011ebe0db Rafał Miłecki 2020-12-14 104
8bcac4011ebe0db Rafał Miłecki 2020-12-14 105 return err;
8bcac4011ebe0db Rafał Miłecki 2020-12-14 106 }
8bcac4011ebe0db Rafał Miłecki 2020-12-14 107
8bcac4011ebe0db Rafał Miłecki 2020-12-14 108 static int bcm_pmb_bpcm_write(struct bcm_pmb *pmb, int bus, u8 device,
8bcac4011ebe0db Rafał Miłecki 2020-12-14 109 int offset, u32 val)
8bcac4011ebe0db Rafał Miłecki 2020-12-14 110 {
8bcac4011ebe0db Rafał Miłecki 2020-12-14 111 void __iomem *base = pmb->base + bus * 0x20;
8bcac4011ebe0db Rafał Miłecki 2020-12-14 112 unsigned long flags;
8bcac4011ebe0db Rafał Miłecki 2020-12-14 113 int err;
8bcac4011ebe0db Rafał Miłecki 2020-12-14 114
8bcac4011ebe0db Rafał Miłecki 2020-12-14 @115 val = pmb->little_endian ? cpu_to_le32(val) : cpu_to_be32(val);
8bcac4011ebe0db Rafał Miłecki 2020-12-14 116
8bcac4011ebe0db Rafał Miłecki 2020-12-14 117 spin_lock_irqsave(&pmb->lock, flags);
8bcac4011ebe0db Rafał Miłecki 2020-12-14 118 err = bpcm_wr(base, device, offset, val);
8bcac4011ebe0db Rafał Miłecki 2020-12-14 119 spin_unlock_irqrestore(&pmb->lock, flags);
8bcac4011ebe0db Rafał Miłecki 2020-12-14 120
8bcac4011ebe0db Rafał Miłecki 2020-12-14 121 return err;
8bcac4011ebe0db Rafał Miłecki 2020-12-14 122 }
8bcac4011ebe0db Rafał Miłecki 2020-12-14 123
:::::: The code at line 103 was first introduced by commit
:::::: 8bcac4011ebe0dbdd46fd55b036ee855c95702d3 soc: bcm: add PM driver for Broadcom's PMB
:::::: TO: Rafał Miłecki <rafal@xxxxxxxxxx>
:::::: CC: Florian Fainelli <f.fainelli@xxxxxxxxx>
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https://github.com/intel/lkp-tests/wiki