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libata: improve EH report formatting

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Requiring LLDs to format multiple error description messages properly
doesn't work too well.  Help LLDs a bit by making ata_ehi_push_desc()
insert ", " on each invocation.  __ata_ehi_push_desc() is the raw
version without the automatic separator.

While at it, make ehi_desc interface proper functions instead of
macros.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Tejun Heo
2007-07-16 14:29:39 +09:00
committed by Jeff Garzik
parent 975530e8a3
commit b64bbc39f2
7 changed files with 98 additions and 35 deletions
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13
include/linux/libata.h
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@ -910,16 +910,9 @@ extern void ata_do_eh(struct ata_port *ap, ata_prereset_fn_t prereset,
/*
* ata_eh_info helpers
*/
#define ata_ehi_push_desc(ehi, fmt, args...) do { \
(ehi)->desc_len += scnprintf((ehi)->desc + (ehi)->desc_len, \
ATA_EH_DESC_LEN - (ehi)->desc_len, \
fmt , ##args); \
} while (0)
#define ata_ehi_clear_desc(ehi) do { \
(ehi)->desc[0] = '\0'; \
(ehi)->desc_len = 0; \
} while (0)
extern void __ata_ehi_push_desc(struct ata_eh_info *ehi, const char *fmt, ...);
extern void ata_ehi_push_desc(struct ata_eh_info *ehi, const char *fmt, ...);
extern void ata_ehi_clear_desc(struct ata_eh_info *ehi);
static inline void __ata_ehi_hotplugged(struct ata_eh_info *ehi)
{