diff options
Diffstat (limited to 'drivers/char/tpm/tpm_ppi.c')
-rw-r--r-- | drivers/char/tpm/tpm_ppi.c | 52 |
1 files changed, 25 insertions, 27 deletions
diff --git a/drivers/char/tpm/tpm_ppi.c b/drivers/char/tpm/tpm_ppi.c index bc7b1b4501b3..d53fce1c9d6f 100644 --- a/drivers/char/tpm/tpm_ppi.c +++ b/drivers/char/tpm/tpm_ppi.c @@ -52,7 +52,7 @@ static ssize_t tpm_show_ppi_version(struct device *dev, { struct tpm_chip *chip = to_tpm_chip(dev); - return scnprintf(buf, PAGE_SIZE, "%s\n", chip->ppi_version); + return sysfs_emit(buf, "%s\n", chip->ppi_version); } static ssize_t tpm_show_ppi_request(struct device *dev, @@ -87,12 +87,10 @@ static ssize_t tpm_show_ppi_request(struct device *dev, else { req = obj->package.elements[1].integer.value; if (tpm_ppi_req_has_parameter(req)) - size = scnprintf(buf, PAGE_SIZE, - "%llu %llu\n", req, - obj->package.elements[2].integer.value); + size = sysfs_emit(buf, "%llu %llu\n", req, + obj->package.elements[2].integer.value); else - size = scnprintf(buf, PAGE_SIZE, - "%llu\n", req); + size = sysfs_emit(buf, "%llu\n", req); } } else if (obj->package.count == 2 && obj->package.elements[0].type == ACPI_TYPE_INTEGER && @@ -100,8 +98,8 @@ static ssize_t tpm_show_ppi_request(struct device *dev, if (obj->package.elements[0].integer.value) size = -EFAULT; else - size = scnprintf(buf, PAGE_SIZE, "%llu\n", - obj->package.elements[1].integer.value); + size = sysfs_emit(buf, "%llu\n", + obj->package.elements[1].integer.value); } ACPI_FREE(obj); @@ -211,10 +209,10 @@ static ssize_t tpm_show_ppi_transition_action(struct device *dev, } if (ret < ARRAY_SIZE(info) - 1) - status = scnprintf(buf, PAGE_SIZE, "%d: %s\n", ret, info[ret]); + status = sysfs_emit(buf, "%d: %s\n", ret, info[ret]); else - status = scnprintf(buf, PAGE_SIZE, "%d: %s\n", ret, - info[ARRAY_SIZE(info)-1]); + status = sysfs_emit(buf, "%d: %s\n", ret, + info[ARRAY_SIZE(info) - 1]); return status; } @@ -255,23 +253,23 @@ static ssize_t tpm_show_ppi_response(struct device *dev, res = ret_obj[2].integer.value; if (req) { if (res == 0) - status = scnprintf(buf, PAGE_SIZE, "%llu %s\n", req, - "0: Success"); + status = sysfs_emit(buf, "%llu %s\n", req, + "0: Success"); else if (res == 0xFFFFFFF0) - status = scnprintf(buf, PAGE_SIZE, "%llu %s\n", req, - "0xFFFFFFF0: User Abort"); + status = sysfs_emit(buf, "%llu %s\n", req, + "0xFFFFFFF0: User Abort"); else if (res == 0xFFFFFFF1) - status = scnprintf(buf, PAGE_SIZE, "%llu %s\n", req, - "0xFFFFFFF1: BIOS Failure"); + status = sysfs_emit(buf, "%llu %s\n", req, + "0xFFFFFFF1: BIOS Failure"); else if (res >= 1 && res <= 0x00000FFF) - status = scnprintf(buf, PAGE_SIZE, "%llu %llu: %s\n", - req, res, "Corresponding TPM error"); + status = sysfs_emit(buf, "%llu %llu: %s\n", + req, res, "Corresponding TPM error"); else - status = scnprintf(buf, PAGE_SIZE, "%llu %llu: %s\n", - req, res, "Error"); + status = sysfs_emit(buf, "%llu %llu: %s\n", + req, res, "Error"); } else { - status = scnprintf(buf, PAGE_SIZE, "%llu: %s\n", - req, "No Recent Request"); + status = sysfs_emit(buf, "%llu: %s\n", + req, "No Recent Request"); } cleanup: @@ -284,7 +282,7 @@ static ssize_t show_ppi_operations(acpi_handle dev_handle, char *buf, u32 start, { int i; u32 ret; - char *str = buf; + int len = 0; union acpi_object *obj, tmp; union acpi_object argv = ACPI_INIT_DSM_ARGV4(1, &tmp); @@ -314,11 +312,11 @@ static ssize_t show_ppi_operations(acpi_handle dev_handle, char *buf, u32 start, } if (ret > 0 && ret < ARRAY_SIZE(info)) - str += scnprintf(str, PAGE_SIZE, "%d %d: %s\n", - i, ret, info[ret]); + len += sysfs_emit_at(buf, len, "%d %d: %s\n", + i, ret, info[ret]); } - return str - buf; + return len; } static ssize_t tpm_show_ppi_tcg_operations(struct device *dev, |