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| author | Jason J. Herne <jjherne@linux.ibm.com> | 2024-04-15 11:25:51 -0400 |
|---|---|---|
| committer | Alexander Gordeev <agordeev@linux.ibm.com> | 2024-04-22 12:49:17 +0200 |
| commit | 6e6973948ce6911e35cb559bc53de4156b4a9675 (patch) | |
| tree | c37f6a7f0115f8212c69a4d3104ab54b7f74700c /drivers/s390/crypto/ap_bus.c | |
| parent | ba05b39d54eef78043b5c8ee90545cb06a98ae6f (diff) | |
| download | linux-stable-6e6973948ce6911e35cb559bc53de4156b4a9675.tar.gz linux-stable-6e6973948ce6911e35cb559bc53de4156b4a9675.tar.bz2 linux-stable-6e6973948ce6911e35cb559bc53de4156b4a9675.zip | |
s390/ap: Externalize AP bus specific bitmap reading function
Rename hex2bitmap() to ap_hex2bitmap() and export it for external
use. This function will be used by the implementation of the vfio-ap
ap_config sysfs attribute.
Signed-off-by: "Jason J. Herne" <jjherne@linux.ibm.com>
Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Link: https://lore.kernel.org/r/20240415152555.13152-2-jjherne@linux.ibm.com
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Diffstat (limited to 'drivers/s390/crypto/ap_bus.c')
| -rw-r--r-- | drivers/s390/crypto/ap_bus.c | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index 09059b3a3a42..c20b45092079 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -1043,15 +1043,7 @@ static struct notifier_block ap_bus_nb = { .notifier_call = ap_bus_cfg_chg, }; -/* - * hex2bitmap() - parse hex mask string and set bitmap. - * Valid strings are "0x012345678" with at least one valid hex number. - * Rest of the bitmap to the right is padded with 0. No spaces allowed - * within the string, the leading 0x may be omitted. - * Returns the bitmask with exactly the bits set as given by the hex - * string (both in big endian order). - */ -static int hex2bitmap(const char *str, unsigned long *bitmap, int bits) +int ap_hex2bitmap(const char *str, unsigned long *bitmap, int bits) { int i, n, b; @@ -1078,6 +1070,7 @@ static int hex2bitmap(const char *str, unsigned long *bitmap, int bits) return -EINVAL; return 0; } +EXPORT_SYMBOL(ap_hex2bitmap); /* * modify_bitmap() - parse bitmask argument and modify an existing @@ -1143,7 +1136,7 @@ static int ap_parse_bitmap_str(const char *str, unsigned long *bitmap, int bits, rc = modify_bitmap(str, newmap, bits); } else { memset(newmap, 0, size); - rc = hex2bitmap(str, newmap, bits); + rc = ap_hex2bitmap(str, newmap, bits); } return rc; } |