From: kernel test robot <lkp@intel.com>
To: Mike Rapoport <rppt@kernel.org>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
Mike Rapoport <rppt@kernel.org>
Subject: [rppt:misc/pfn_valid/v0 1/1] drivers/mmc/core/mmc.c:115:22: warning: shift count >= width of type
Date: Mon, 23 Jan 2023 20:31:34 +0800 [thread overview]
Message-ID: <202301232003.VhrDpnUt-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/rppt/linux.git misc/pfn_valid/v0
head: 2cb3404accfc161b66866cd03c42953f57700677
commit: 2cb3404accfc161b66866cd03c42953f57700677 [1/1] mm, arch: add generic implementation of pfn_valid() for FLATMEM
config: hexagon-randconfig-r041-20230123 (https://download.01.org/0day-ci/archive/20230123/202301232003.VhrDpnUt-lkp@intel.com/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 4196ca3278f78c6e19246e54ab0ecb364e37d66a)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://git.kernel.org/pub/scm/linux/kernel/git/rppt/linux.git/commit/?id=2cb3404accfc161b66866cd03c42953f57700677
git remote add rppt https://git.kernel.org/pub/scm/linux/kernel/git/rppt/linux.git
git fetch --no-tags rppt misc/pfn_valid/v0
git checkout 2cb3404accfc161b66866cd03c42953f57700677
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/comedi/ drivers/mmc/core/ drivers/mmc/host/ drivers/net/wireless/broadcom/b43/ drivers/platform/goldfish/ drivers/vdpa/vdpa_user/ drivers/vhost/ fs/ kernel/dma/ kernel/events/ lib/ mm/ net/bpf/ net/core/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
In file included from drivers/mmc/core/mmc.c:18:
In file included from include/linux/mmc/host.h:18:
In file included from include/linux/blk-crypto-profile.h:9:
In file included from include/linux/bio.h:10:
In file included from include/linux/blk_types.h:10:
In file included from include/linux/bvec.h:10:
In file included from include/linux/highmem.h:10:
include/linux/mm.h:1632:34: error: expected expression
return page_to_pfn(&folio->page);
^
include/linux/mm.h:1720:35: error: expected expression
if (is_zero_pfn(page_to_pfn(page)))
^
include/linux/mm.h:1860:9: error: expected expression
return page_to_virt(page);
^
arch/hexagon/include/asm/page.h:131:33: note: expanded from macro 'page_to_virt'
#define page_to_virt(page) __va(page_to_phys(page))
^
arch/hexagon/include/asm/page.h:126:52: note: expanded from macro 'page_to_phys'
#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
^
In file included from drivers/mmc/core/mmc.c:18:
In file included from include/linux/mmc/host.h:18:
In file included from include/linux/blk-crypto-profile.h:9:
In file included from include/linux/bio.h:10:
In file included from include/linux/blk_types.h:10:
In file included from include/linux/bvec.h:10:
In file included from include/linux/highmem.h:12:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __raw_readb(PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
^
In file included from drivers/mmc/core/mmc.c:18:
In file included from include/linux/mmc/host.h:18:
In file included from include/linux/blk-crypto-profile.h:9:
In file included from include/linux/bio.h:10:
In file included from include/linux/blk_types.h:10:
In file included from include/linux/bvec.h:10:
In file included from include/linux/highmem.h:12:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
^
In file included from drivers/mmc/core/mmc.c:18:
In file included from include/linux/mmc/host.h:18:
In file included from include/linux/blk-crypto-profile.h:9:
In file included from include/linux/bio.h:10:
In file included from include/linux/blk_types.h:10:
In file included from include/linux/bvec.h:10:
In file included from include/linux/highmem.h:12:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writeb(value, PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
>> drivers/mmc/core/mmc.c:115:22: warning: shift count >= width of type [-Wshift-count-overflow]
card->cid.serial = UNSTUFF_BITS(resp, 16, 32);
^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/mmc/core/mmc.c:57:39: note: expanded from macro 'UNSTUFF_BITS'
const u32 __mask = (__size < 32 ? 1 << __size : 0) - 1; \
^ ~~~~~~
7 warnings and 3 errors generated.
--
In file included from drivers/mmc/core/sd.c:16:
In file included from include/linux/scatterlist.h:8:
include/linux/mm.h:1632:34: error: expected expression
return page_to_pfn(&folio->page);
^
include/linux/mm.h:1720:35: error: expected expression
if (is_zero_pfn(page_to_pfn(page)))
^
include/linux/mm.h:1860:9: error: expected expression
return page_to_virt(page);
^
arch/hexagon/include/asm/page.h:131:33: note: expanded from macro 'page_to_virt'
#define page_to_virt(page) __va(page_to_phys(page))
^
arch/hexagon/include/asm/page.h:126:52: note: expanded from macro 'page_to_phys'
#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
^
In file included from drivers/mmc/core/sd.c:16:
In file included from include/linux/scatterlist.h:9:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __raw_readb(PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
^
In file included from drivers/mmc/core/sd.c:16:
In file included from include/linux/scatterlist.h:9:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
^
In file included from drivers/mmc/core/sd.c:16:
In file included from include/linux/scatterlist.h:9:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writeb(value, PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
In file included from drivers/mmc/core/sd.c:16:
include/linux/scatterlist.h:329:9: error: expected expression
return page_to_phys(sg_page(sg)) + sg->offset;
^
arch/hexagon/include/asm/page.h:126:52: note: expanded from macro 'page_to_phys'
#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
^
>> drivers/mmc/core/sd.c:106:22: warning: shift count >= width of type [-Wshift-count-overflow]
card->cid.serial = UNSTUFF_BITS(resp, 24, 32);
^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/mmc/core/sd.c:61:39: note: expanded from macro 'UNSTUFF_BITS'
const u32 __mask = (__size < 32 ? 1 << __size : 0) - 1; \
^ ~~~~~~
7 warnings and 4 errors generated.
--
In file included from fs/statfs.c:2:
In file included from include/linux/syscalls.h:88:
In file included from include/trace/syscall.h:7:
In file included from include/linux/trace_events.h:6:
In file included from include/linux/ring_buffer.h:5:
include/linux/mm.h:1632:34: error: expected expression
return page_to_pfn(&folio->page);
^
include/linux/mm.h:1720:35: error: expected expression
if (is_zero_pfn(page_to_pfn(page)))
^
include/linux/mm.h:1860:9: error: expected expression
return page_to_virt(page);
^
arch/hexagon/include/asm/page.h:131:33: note: expanded from macro 'page_to_virt'
#define page_to_virt(page) __va(page_to_phys(page))
^
arch/hexagon/include/asm/page.h:126:52: note: expanded from macro 'page_to_phys'
#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
^
In file included from fs/statfs.c:2:
In file included from include/linux/syscalls.h:88:
In file included from include/trace/syscall.h:7:
In file included from include/linux/trace_events.h:9:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __raw_readb(PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
^
In file included from fs/statfs.c:2:
In file included from include/linux/syscalls.h:88:
In file included from include/trace/syscall.h:7:
In file included from include/linux/trace_events.h:9:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
^
In file included from fs/statfs.c:2:
In file included from include/linux/syscalls.h:88:
In file included from include/trace/syscall.h:7:
In file included from include/linux/trace_events.h:9:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writeb(value, PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
>> fs/statfs.c:131:3: warning: 'memcpy' will always overflow; destination buffer has size 64, but size argument is 88 [-Wfortify-source]
memcpy(&buf, st, sizeof(*st));
^
7 warnings and 3 errors generated.
--
In file included from fs/exec.c:30:
include/linux/mm.h:1632:34: error: expected expression
return page_to_pfn(&folio->page);
^
include/linux/mm.h:1720:35: error: expected expression
if (is_zero_pfn(page_to_pfn(page)))
^
include/linux/mm.h:1860:9: error: expected expression
return page_to_virt(page);
^
arch/hexagon/include/asm/page.h:131:33: note: expanded from macro 'page_to_virt'
#define page_to_virt(page) __va(page_to_phys(page))
^
arch/hexagon/include/asm/page.h:126:52: note: expanded from macro 'page_to_phys'
#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
^
In file included from fs/exec.c:33:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:9:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __raw_readb(PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
^
In file included from fs/exec.c:33:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:9:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
^
In file included from fs/exec.c:33:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:13:
In file included from include/linux/cgroup.h:26:
In file included from include/linux/kernel_stat.h:9:
In file included from include/linux/interrupt.h:11:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writeb(value, PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
In file included from fs/exec.c:70:
In file included from arch/hexagon/include/asm/mmu_context.h:15:
arch/hexagon/include/asm/pgalloc.h:51:54: error: expected expression
set_pmd(pmd, __pmd(((unsigned long)page_to_pfn(pte) << PAGE_SHIFT) |
^
arch/hexagon/include/asm/pgalloc.h:51:2: error: expected '}'
set_pmd(pmd, __pmd(((unsigned long)page_to_pfn(pte) << PAGE_SHIFT) |
^
arch/hexagon/include/asm/pgtable.h:343:54: note: expanded from macro 'set_pmd'
#define set_pmd(pmdptr, pmdval) (*(pmdptr) = (pmdval))
^
arch/hexagon/include/asm/pgalloc.h:51:15: note: to match this '{'
set_pmd(pmd, __pmd(((unsigned long)page_to_pfn(pte) << PAGE_SHIFT) |
^
include/asm-generic/pgtable-nopmd.h:53:30: note: expanded from macro '__pmd'
#define __pmd(x) ((pmd_t) { __pud(x) } )
^
fs/exec.c:245:52: error: expected expression
flush_cache_page(bprm->vma, pos, page_to_pfn(page));
^
>> fs/exec.c:405:51: warning: declaration of 'struct user_arg_ptr' will not be visible outside of this function [-Wvisibility]
static const char __user *get_user_arg_ptr(struct user_arg_ptr argv, int nr)
^
fs/exec.c:406:1: error: function definition is not allowed here
{
^
fs/exec.c:429:25: warning: declaration of 'struct user_arg_ptr' will not be visible outside of this function [-Wvisibility]
static int count(struct user_arg_ptr argv, int max)
^
fs/exec.c:430:1: error: function definition is not allowed here
{
^
fs/exec.c:456:1: error: function definition is not allowed here
{
^
fs/exec.c:473:1: error: function definition is not allowed here
{
^
fs/exec.c:518:42: warning: declaration of 'struct user_arg_ptr' will not be visible outside of this function [-Wvisibility]
static int copy_strings(int argc, struct user_arg_ptr argv,
^
fs/exec.c:520:1: error: function definition is not allowed here
{
^
fs/exec.c:614:1: error: function definition is not allowed here
{
^
fs/exec.c:652:1: error: function definition is not allowed here
{
^
fs/exec.c:679:1: error: function definition is not allowed here
{
^
fs/exec.c:749:1: error: function definition is not allowed here
{
^
fs/exec.c:901:1: error: function definition is not allowed here
{
^
fs/exec.c:948:1: error: function definition is not allowed here
{
^
fs/exec.c:977:1: error: function definition is not allowed here
{
^
fs/exec.c:1041:1: error: function definition is not allowed here
{
^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
9 warnings and 20 errors generated.
..
vim +115 drivers/mmc/core/mmc.c
7ea239d9e6d699 Pierre Ossman 2006-12-31 53
7ea239d9e6d699 Pierre Ossman 2006-12-31 54 #define UNSTUFF_BITS(resp,start,size) \
7ea239d9e6d699 Pierre Ossman 2006-12-31 55 ({ \
7ea239d9e6d699 Pierre Ossman 2006-12-31 56 const int __size = size; \
7ea239d9e6d699 Pierre Ossman 2006-12-31 57 const u32 __mask = (__size < 32 ? 1 << __size : 0) - 1; \
7ea239d9e6d699 Pierre Ossman 2006-12-31 58 const int __off = 3 - ((start) / 32); \
7ea239d9e6d699 Pierre Ossman 2006-12-31 59 const int __shft = (start) & 31; \
7ea239d9e6d699 Pierre Ossman 2006-12-31 60 u32 __res; \
7ea239d9e6d699 Pierre Ossman 2006-12-31 61 \
7ea239d9e6d699 Pierre Ossman 2006-12-31 62 __res = resp[__off] >> __shft; \
7ea239d9e6d699 Pierre Ossman 2006-12-31 63 if (__size + __shft > 32) \
7ea239d9e6d699 Pierre Ossman 2006-12-31 64 __res |= resp[__off-1] << ((32 - __shft) % 32); \
7ea239d9e6d699 Pierre Ossman 2006-12-31 65 __res & __mask; \
7ea239d9e6d699 Pierre Ossman 2006-12-31 66 })
7ea239d9e6d699 Pierre Ossman 2006-12-31 67
7ea239d9e6d699 Pierre Ossman 2006-12-31 68 /*
7ea239d9e6d699 Pierre Ossman 2006-12-31 69 * Given the decoded CSD structure, decode the raw CID to our CID structure.
7ea239d9e6d699 Pierre Ossman 2006-12-31 70 */
bd766312618d2e Pierre Ossman 2007-05-01 71 static int mmc_decode_cid(struct mmc_card *card)
7ea239d9e6d699 Pierre Ossman 2006-12-31 72 {
7ea239d9e6d699 Pierre Ossman 2006-12-31 73 u32 *resp = card->raw_cid;
7ea239d9e6d699 Pierre Ossman 2006-12-31 74
ac9d25557dcc9f Linus Walleij 2022-04-25 75 /*
ac9d25557dcc9f Linus Walleij 2022-04-25 76 * Add the raw card ID (cid) data to the entropy pool. It doesn't
ac9d25557dcc9f Linus Walleij 2022-04-25 77 * matter that not all of it is unique, it's just bonus entropy.
ac9d25557dcc9f Linus Walleij 2022-04-25 78 */
ac9d25557dcc9f Linus Walleij 2022-04-25 79 add_device_randomness(&card->raw_cid, sizeof(card->raw_cid));
ac9d25557dcc9f Linus Walleij 2022-04-25 80
7ea239d9e6d699 Pierre Ossman 2006-12-31 81 /*
7ea239d9e6d699 Pierre Ossman 2006-12-31 82 * The selection of the format here is based upon published
7ea239d9e6d699 Pierre Ossman 2006-12-31 83 * specs from sandisk and from what people have reported.
7ea239d9e6d699 Pierre Ossman 2006-12-31 84 */
7ea239d9e6d699 Pierre Ossman 2006-12-31 85 switch (card->csd.mmca_vsn) {
7ea239d9e6d699 Pierre Ossman 2006-12-31 86 case 0: /* MMC v1.0 - v1.2 */
7ea239d9e6d699 Pierre Ossman 2006-12-31 87 case 1: /* MMC v1.4 */
7ea239d9e6d699 Pierre Ossman 2006-12-31 88 card->cid.manfid = UNSTUFF_BITS(resp, 104, 24);
7ea239d9e6d699 Pierre Ossman 2006-12-31 89 card->cid.prod_name[0] = UNSTUFF_BITS(resp, 96, 8);
7ea239d9e6d699 Pierre Ossman 2006-12-31 90 card->cid.prod_name[1] = UNSTUFF_BITS(resp, 88, 8);
7ea239d9e6d699 Pierre Ossman 2006-12-31 91 card->cid.prod_name[2] = UNSTUFF_BITS(resp, 80, 8);
7ea239d9e6d699 Pierre Ossman 2006-12-31 92 card->cid.prod_name[3] = UNSTUFF_BITS(resp, 72, 8);
7ea239d9e6d699 Pierre Ossman 2006-12-31 93 card->cid.prod_name[4] = UNSTUFF_BITS(resp, 64, 8);
7ea239d9e6d699 Pierre Ossman 2006-12-31 94 card->cid.prod_name[5] = UNSTUFF_BITS(resp, 56, 8);
7ea239d9e6d699 Pierre Ossman 2006-12-31 95 card->cid.prod_name[6] = UNSTUFF_BITS(resp, 48, 8);
7ea239d9e6d699 Pierre Ossman 2006-12-31 96 card->cid.hwrev = UNSTUFF_BITS(resp, 44, 4);
7ea239d9e6d699 Pierre Ossman 2006-12-31 97 card->cid.fwrev = UNSTUFF_BITS(resp, 40, 4);
7ea239d9e6d699 Pierre Ossman 2006-12-31 98 card->cid.serial = UNSTUFF_BITS(resp, 16, 24);
7ea239d9e6d699 Pierre Ossman 2006-12-31 99 card->cid.month = UNSTUFF_BITS(resp, 12, 4);
7ea239d9e6d699 Pierre Ossman 2006-12-31 100 card->cid.year = UNSTUFF_BITS(resp, 8, 4) + 1997;
7ea239d9e6d699 Pierre Ossman 2006-12-31 101 break;
7ea239d9e6d699 Pierre Ossman 2006-12-31 102
7ea239d9e6d699 Pierre Ossman 2006-12-31 103 case 2: /* MMC v2.0 - v2.2 */
7ea239d9e6d699 Pierre Ossman 2006-12-31 104 case 3: /* MMC v3.1 - v3.3 */
7ea239d9e6d699 Pierre Ossman 2006-12-31 105 case 4: /* MMC v4 */
7ea239d9e6d699 Pierre Ossman 2006-12-31 106 card->cid.manfid = UNSTUFF_BITS(resp, 120, 8);
7ea239d9e6d699 Pierre Ossman 2006-12-31 107 card->cid.oemid = UNSTUFF_BITS(resp, 104, 16);
7ea239d9e6d699 Pierre Ossman 2006-12-31 108 card->cid.prod_name[0] = UNSTUFF_BITS(resp, 96, 8);
7ea239d9e6d699 Pierre Ossman 2006-12-31 109 card->cid.prod_name[1] = UNSTUFF_BITS(resp, 88, 8);
7ea239d9e6d699 Pierre Ossman 2006-12-31 110 card->cid.prod_name[2] = UNSTUFF_BITS(resp, 80, 8);
7ea239d9e6d699 Pierre Ossman 2006-12-31 111 card->cid.prod_name[3] = UNSTUFF_BITS(resp, 72, 8);
7ea239d9e6d699 Pierre Ossman 2006-12-31 112 card->cid.prod_name[4] = UNSTUFF_BITS(resp, 64, 8);
7ea239d9e6d699 Pierre Ossman 2006-12-31 113 card->cid.prod_name[5] = UNSTUFF_BITS(resp, 56, 8);
51e7e8b632d8e5 Bernie Thompson 2013-02-27 114 card->cid.prv = UNSTUFF_BITS(resp, 48, 8);
7ea239d9e6d699 Pierre Ossman 2006-12-31 @115 card->cid.serial = UNSTUFF_BITS(resp, 16, 32);
7ea239d9e6d699 Pierre Ossman 2006-12-31 116 card->cid.month = UNSTUFF_BITS(resp, 12, 4);
7ea239d9e6d699 Pierre Ossman 2006-12-31 117 card->cid.year = UNSTUFF_BITS(resp, 8, 4) + 1997;
7ea239d9e6d699 Pierre Ossman 2006-12-31 118 break;
7ea239d9e6d699 Pierre Ossman 2006-12-31 119
7ea239d9e6d699 Pierre Ossman 2006-12-31 120 default:
a3c76eb9d4a1e6 Girish K S 2011-10-11 121 pr_err("%s: card has unknown MMCA version %d\n",
7ea239d9e6d699 Pierre Ossman 2006-12-31 122 mmc_hostname(card->host), card->csd.mmca_vsn);
bd766312618d2e Pierre Ossman 2007-05-01 123 return -EINVAL;
7ea239d9e6d699 Pierre Ossman 2006-12-31 124 }
bd766312618d2e Pierre Ossman 2007-05-01 125
bd766312618d2e Pierre Ossman 2007-05-01 126 return 0;
7ea239d9e6d699 Pierre Ossman 2006-12-31 127 }
7ea239d9e6d699 Pierre Ossman 2006-12-31 128
:::::: The code at line 115 was first introduced by commit
:::::: 7ea239d9e6d6993469a6a8ca83ff23834dfc3fce mmc: add bus handler
:::::: TO: Pierre Ossman <drzeus@drzeus.cx>
:::::: CC: Pierre Ossman <drzeus@drzeus.cx>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests
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