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ALSA: mixart: Proper endian notations 

The miXart driver deals with big-endian values as raw data, while it
declares most of variables as u32.  This leads to sparse warnings like
  sound/pci/mixart/mixart.c:1203:23: warning: cast to restricted __be32

Fix them by properly defining the structs and add the explicit cast to
macros.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2018-07-25 23:24:05 +02:00
parent be05e3de3a
commit 0e7ca66a97
3 changed files with 27 additions and 27 deletions
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4
sound/pci/mixart/mixart_core.c
View File

@ -107,7 +107,7 @@ static int get_msg(struct mixart_mgr *mgr, struct mixart_msg *resp,
#ifndef __BIG_ENDIAN
size /= 4; /* u32 size */
for(i=0; i < size; i++) {
((u32*)resp->data)[i] = be32_to_cpu(((u32*)resp->data)[i]);
((u32*)resp->data)[i] = be32_to_cpu(((__be32*)resp->data)[i]);
}
#endif
@ -519,7 +519,7 @@ irqreturn_t snd_mixart_threaded_irq(int irq, void *dev_id)
/* Traces are text: the swapped msg_data has to be swapped back ! */
int i;
for(i=0; i<(resp.size/4); i++) {
(mixart_msg_data)[i] = cpu_to_be32((mixart_msg_data)[i]);
((__be32*)mixart_msg_data)[i] = cpu_to_be32((mixart_msg_data)[i]);
}
#endif
((char*)mixart_msg_data)[resp.size - 1] = 0;

42
sound/pci/mixart/mixart_hwdep.c
View File

@ -73,30 +73,30 @@ static int mixart_wait_nice_for_register_value(struct mixart_mgr *mgr,
*/
struct snd_mixart_elf32_ehdr {
u8 e_ident[16];
u16 e_type;
u16 e_machine;
u32 e_version;
u32 e_entry;
u32 e_phoff;
u32 e_shoff;
u32 e_flags;
u16 e_ehsize;
u16 e_phentsize;
u16 e_phnum;
u16 e_shentsize;
u16 e_shnum;
u16 e_shstrndx;
__be16 e_type;
__be16 e_machine;
__be32 e_version;
__be32 e_entry;
__be32 e_phoff;
__be32 e_shoff;
__be32 e_flags;
__be16 e_ehsize;
__be16 e_phentsize;
__be16 e_phnum;
__be16 e_shentsize;
__be16 e_shnum;
__be16 e_shstrndx;
};
struct snd_mixart_elf32_phdr {
u32 p_type;
u32 p_offset;
u32 p_vaddr;
u32 p_paddr;
u32 p_filesz;
u32 p_memsz;
u32 p_flags;
u32 p_align;
__be32 p_type;
__be32 p_offset;
__be32 p_vaddr;
__be32 p_paddr;
__be32 p_filesz;
__be32 p_memsz;
__be32 p_flags;
__be32 p_align;
};
static int mixart_load_elf(struct mixart_mgr *mgr, const struct firmware *dsp )

8
sound/pci/mixart/mixart_hwdep.h
View File

@ -26,19 +26,19 @@
#include <sound/hwdep.h>
#ifndef readl_be
#define readl_be(x) be32_to_cpu(__raw_readl(x))
#define readl_be(x) be32_to_cpu((__force __be32)__raw_readl(x))
#endif
#ifndef writel_be
#define writel_be(data,addr) __raw_writel(cpu_to_be32(data),addr)
#define writel_be(data,addr) __raw_writel((__force u32)cpu_to_be32(data),addr)
#endif
#ifndef readl_le
#define readl_le(x) le32_to_cpu(__raw_readl(x))
#define readl_le(x) le32_to_cpu((__force __le32)__raw_readl(x))
#endif
#ifndef writel_le
#define writel_le(data,addr) __raw_writel(cpu_to_le32(data),addr)
#define writel_le(data,addr) __raw_writel((__force u32)cpu_to_le32(data),addr)
#endif
#define MIXART_MEM(mgr,x) ((mgr)->mem[0].virt + (x))