Commit d456f387 authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/amdgpu: fix 64 bit divide in eeprom code 



pos is 64 bits.

Fixes: c65b0805 ("drm/amdgpu: RAS EEPROM table is now in debugfs")
Cc: luben.tuikov@amd.com
Reported-by: default avatarkernel test robot <lkp@intel.com>
Reviewed-by: default avatarLuben Tuikov <luben.tuikov@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent c65b0805

drivers/gpu/drm/amd/amdgpu/amdgpu_ras_eeprom.c

+9 −5
Original line number Diff line number Diff line
@@ -880,13 +880,17 @@ static ssize_t amdgpu_ras_debugfs_table_read(struct file *f, char __user *buf, 
	if (*pos < data_len && size > 0) {

		u8 dare[RAS_TABLE_RECORD_SIZE];

		u8 data[rec_hdr_fmt_size + 1];

		struct eeprom_table_record record;

		int s, r;



		/* Find the starting record index

		 */

		int s = (*pos - strlen(tbl_hdr_str) - tbl_hdr_fmt_size -

			 strlen(rec_hdr_str)) / rec_hdr_fmt_size;

		int r = (*pos - strlen(tbl_hdr_str) - tbl_hdr_fmt_size -

			 strlen(rec_hdr_str)) % rec_hdr_fmt_size;

		struct eeprom_table_record record;

		s = *pos - strlen(tbl_hdr_str) - tbl_hdr_fmt_size -

			strlen(rec_hdr_str);

		s = s / rec_hdr_fmt_size;

		r = *pos - strlen(tbl_hdr_str) - tbl_hdr_fmt_size -

			strlen(rec_hdr_str);

		r = r % rec_hdr_fmt_size;



		for ( ; size > 0 && s < control->ras_num_recs; s++) {

			u32 ai = RAS_RI_TO_AI(control, s);